List of the Paleozoic life of Indiana
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This list of the Paleozoic life of Indiana contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Indiana and are between 538.8 and 252.17 million years of age.
A
[edit]- †Abatocrinus
Fossilized calyx of the Carboniferous crinoid ("sea lily") Abrotocrinus - †Acacocrinus
- †Acanthopecten
- †Achistrum
- †Achistrum brevis – type locality for species
- †Achistrum ludwigi
- †Achistrum nicholsoni
- †Achistrum triassicum
- †Achradocrinus
- †Acidaspis
- †Acinophyllum
- †Acinophyllum davisi – type locality for species
- †Acratia
- †Acrocrinus
- † Acrophyllum
Fossilized calyx and partial stem of the Devonian-Permian crinoid ("sea lily") Actinocrinites - †Actinocrinites gibsoni
- †Actinocrinites grandissimus
- †Actinocrinites lobatus – tentative report
- †Actinocrinites lowei
- †Actinopteria
- †Actinostroma
- †Adinocrinus
- †Aemuliophyllum
- †Aganaster
- †Agaricocrinites
- †Agaricocrinus
Fossilized calyx of the Carboniferous crinoid ("sea lily") Agaricocrinus americanus, or the mushroom crinoid
- †Agassizocrinus
- †Agassizocrinus gibbosus – or unidentified comparable form
- †Agassizocrinus laevis – or unidentified comparable form
- †Ageneracrinus
- †Ahrensisporites
- †Aipoceras – tentative report
- †Alaskadiscus
- †Alatisporites
Fossilized fronds of the Carboniferous-Early Cretaceous seed fern Alethopteris - †Alisocrinus
- †Allocrinus
- †Allocystites
- †Alloprosallocrinus
- †Allorhynchus
- †Alveolites
- †Amaurotoma
- †Amaurotoma leavenworthana – type locality for species
- †Amaurotoma subangulatum – type locality for species
- †Ambocoelia
- †Ambonychia
- Ammobaculites
- Ammodiscus
- †Ammonellipsites
- †Ammovertella
- †Ampheristocystis
- †Amphipora
- †Amphipsalidocrinus – type locality for genus
- †Amphipsalidocrinus inconsuetus
- †Amphipsalidocrinus scissurus – type locality for species
- †Amphissites
- †Amphistrophia
- †Amphoracrinus
- †Amplexiphyllum
- †Amplexiphyllum cruciforme
- †Amplexiphyllum simplex – tentative report
- †Amplexiphyllum tenue
- †Amplexizaphrentis
Ordovician-Permian bryozoan Amplexopora - †Amplexopora discoidea – or unidentified comparable form
- †Amplexus
- †Anachoropteris
- †Anapiculatisporites
- †Anartiocystis
- †Anastrophia
- †Anchiopsis
- †Ancyrocrinus
- †Anematina
- †Anematina proutana – type locality for species
- †Angustidontus
- †Angyomphalus
- †Angyomphalus northviewensis – or unidentified related form
- †Anisocrinus
- †Anisotrypa
- †Ankyropteris
Fossil of the Carboniferous horsetail relative Annularia - †Anomalodonta
- †Anopliopsis
- †Anthracospirifer
- †Antirhynchonella
- †Aphelakardia
- †Aphelecrinus
- †Aphelotoxon
- †Aphlebia
- †Apiculatasporites
- †Apiculatisporites
- †Arabellites
- †Arabellites comis
- †Arabellites conspicuous – or unidentified comparable form
- †Arabellites cultriformis – or unidentified comparable form
- †Arabellites hamiltonesis
- †Arachnophyllum
- †Arachnophyllum striatum – or unidentified comparable form
- †Archaeopitys
Fossils of the Carboniferous-Permian bryozoan Archimedes - †Archimedes communis
- †Archimedes compactus
- †Archimedes distans
- †Archimedes intermedius
- †Archimedes invaginatus
- †Archimedes lativolvis
- †Archimedes macfarlani
- †Archimedes meekanoides
- †Archimedes meekanus
- †Archimedes negligens – or unidentified comparable form
- †Archimedes proutanus
- †Archimedes swallovanus
- †Archimedes swallowvanus
- †Archimedes symmetricus
- †Archimedes terebriformis
- †Archinacella
- †Archinacella indianensis – type locality for species
Fossil of the Silurian trilobite Arctinurus - †Arjamannia
- †Armenoceras
- †Arnoldella
- †Arthroacantha
- †Arthropitys
- †Artisia
- †Asaphocrinus
- †Ascoceras
- †Ascodictyon
- †Ascopora
- †Aspidiaria
- †Asterophyllites
- †Asterotheca
Life restoration of the Early Devonian club moss relative Asteroxylon - †Astraeospongium
- †Astylospongia
- †Atactoporella
- †Atelodictyon
- †Athyris
- †Atrypa
- †Atrypa newsomensis
- †Atrypa parva – or unidentified comparable form
- †Atrypa reticularis
- †Atrypa reticularus
- †Atrypina
- †Aulacophyllum
- †Aulacotheca
- †Aulocystis
- †Aulocystis auloporidea
- †Aulocystis incrustans – tentative report
- †Aulocystis jacksoni
- †Aulocystis lucasensis
- †Aulocystis nobilis
- †Aulocystis procumbens – tentative report
- †Aulocystis transitorius – type locality for species
Fossil of the Late Ordovician-Permian tabulate coral Aulopora - †Auloporella
- †Aviculopecten
- † Avonia – tentative report
- † Avonia
B
[edit]- Bairdia
- †Bairdia compacta
- †Bairdia egorovi – or unidentified related form
- †Bairdia kinderhookensis – or unidentified related form
- †Barroisella
- †Barycrinus
- †Baryschyr
- †Batocrinus
- †Batostoma
- †Batostomella
- †Beatricea
- †Beecheria
- †Beecheria illinoisense
- †Beecheria shumardanum – tentative report
- †Beecheria sinuata
- †Belemnospongia
Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon - †Bellerophon gibsoni – type locality for species
- †Bellerophon jeffersonensis
- †Bellerophon spergensis – type locality for species
- †Belodella
- †Belodella resima – or unidentified comparable form
- †Beloitoceras
- †Beloitoceras amoenum – type locality for species
- †Beloitoceras bucheri
- †Beloitoceras chapparsi
- †Beloitoceras cumingsi
- †Beloitoceras ohioense
- †Beloitoceras transiens
- †Bembexia
- Berenicea
- †Bethacanthus – type locality for genus
- †Bethacanthus insolitus – type locality for species
- †Bethanyphyllum
- †Beyrichoceras
- †Bigalea
- †Bigalea ohioensis – type locality for species
- †Billingsastrea
- †Blothrophyllum
- †Blothrophyllum bellicinctum
- †Blothrophyllum corium
- †Blothrophyllum greeni – tentative report
- †Blothrophyllum romingeri – type locality for species
- †Blothrophyllum sinuosum
- †Blothrophyllum tripinnatum
- †Blothrophyllum trisulcatum
- †Blothrophyllum zaphrentiforme
- †Blountia – tentative report
- †Bordonia
- †Bothrodendron
- †Botryocrinus
- †Brachythyris
- †Brachythyris fernglenensis – or unidentified related form
- †Brachythyris suborbicularis
- †Brahmacrinus
- †Brittsia
- †Brockocystis
- †Bucania
- †Bucania simulatrix – type locality for species
- †Bucanophyllum
- †Bucanopsis
- †Bulimorpha
- †Bulimorpha bulimiformis – type locality for species
- †Bulimorpha elongata – type locality for species
- †Bullimorpha
Fossil of the Early Ordovician-Silurian trilobite Bumastus - †Bumastus armatus – or unidentified comparable form
- †Bumastus insignis
- †Bumastus ioxus
- †Bumastus niagarense – or unidentified comparable form
- †Bynumina
- †Byssonychia
- †Bythocyproidea
- †Bythopora
C
[edit]
Fossilized stems from the Carboniferous-Permian horsetail relative Calamites - †Calamodendron
- †Calamospora
- †Calamostachys
- †Calamostachys paniculata – tentative report
- †Calamostachys superba
- †Calamostachys tuberculata
- †Calceocrinus
- †Calliocrinus
- †Callipleura
Fossilized fronds of the Carboniferous seed fern Callipteridium - †Callistophyton
- †Callixylon
- †Callocystites
- †Calocephalites
- †Calostylis
- †Calostylis trigemma – tentative report
- †Calymene
- †Calymene breviceps
- †Calymene celebra
Fossils in enrolled posture of the Silurian trilobite Calymene niagarensis
- †Calyptactis
- †Camarotoechia
- †Camarotoechia gregaria – tentative report
- †Camarotoechia horsfordi
- †Camarotoechia mutata
- †Camarotoechia neglecta – or unidentified comparable form
- †Camarotoechia pisa
- †Camarotoechia tethys
- †Camptocrinus
Fossil of the Silurian eurypterid ("sea scorpion") Carcinosoma - †Cardiocarpon
- †Cardiocarpon annulatum
- †Cardiocarpon dilatatus
- †Cardiocarpon ingens – tentative report
- †Cardiocarpon latealatum
- †Carneyella
- †Carpocrinus
- †Carpomanon
- †Caryocrinites
Life restoration of the Carboniferous Chimaera relative Caseodus - †Caseodus eatoni – type locality for species
- †Catazyga
- †Catillocrinus
- †Cavellina
- †Cayrocrinites
- †Cayugaea
- †Cayugea
- †Centronella
- †Ceramopora
- †Ceramoporella
- †Ceraurinus
- †Ceraurus
- †Cervifurca – type locality for genus
- †Cervifurca nasuta – type locality for species
- †Chancelloria
- †Charactoceras
- †Cheilocephalus
Fossil of the Cambrian-Middle Devonian trilobite Cheirurus - †Chilotrypa
- †Chomatodus
- †Chondrites
- †Chonetes
- †Chonophyllum
- †Chonostegites
- †Cincinnaticrinus
Assemblage of fossilized shells of the Ordovician brachiopod Cincinnetina - †Cingularia
- †Cingulizonates
- †Cirratriradites
- †Cladochonus
- †Cladopora
- †Cladopora acupicta
- †Cladopora bifurca
- †Cladopora gracilis – tentative report
- †Cladopora gulielmi
- †Cladopora imbricata – tentative report
- †Cladopora robusta – tentative report
- †Cladopora roemeri
- †Cladoxylon
- †Clathrodictyon
- †Clathrospira
- †Cleiodictya
Fossilized shell of the Middle Devonian-Permian brachiopod Cleiothyridina - †Cleodictya
- †Clepsidropsis
- †Clepsydropsis
- †Clinopistha
- †Cliotrypa
- †Clorinda – tentative report
- †Codonotheca
- †Coelocerododontus
- †Coelocerododontus biconvexus – or unidentified comparable form
- †Coelochilina
- †Coeloclema
- †Coelospira
- †Coenites
- †Coenites brownsportensis
- †Coenites cryptodens – or unidentified comparable form
- †Coenites laqueata – or unidentified comparable form
- †Coenites rectilineatus
- †Coleophyllum
- †Columnaria
- †Complexisporites
Fossilized shell of the Late Devonian-Permian brachiopod Composita - †Compressiphyllum
- †Concavicaris
- †Conchidium
- †Conchidium biolularis – or unidentified comparable form
- †Conchidium exporrecta
- †Conchidium laqueatum
- †Conchidium littoni – or unidentified comparable form
- †Conocardium
- †Conocardium richmondense – type locality for species
Fossil of the Ordovician bryozoan Constellaria - †Conularia
- †Convolutipora
- †Convolutispora
- †Coolinia
- †Cordaianthus
- †Cordaicarpon – tentative report
- †Cordaites
- †Cornulitella
Fossil of the Middle Ordovician-Carboniferous horn coral Cornulites - Cornuspira
- †Coronura
- †Corynotrypa
- †Costalocrinus
- †Costatulites
- †Cranaena
- †Crania
- †Craniops
- †Crassispora
- †Craterophyllum
- †Craterophyllum latiradium – tentative report
- †Craterophyllum magnificum
- †Cribanocrinus
- †Cribroconcha – tentative report
- †Cristatisporites
- †Crossotheca
Fossilized stem segments of the Silurian crinoid ("sea lily") Crotalocrinites - †Crotalocrinus
- †Crurithyris
- †Cryptonella
- †Crytobairdia
- †Ctenocrinus
- †Ctenodonta
- †Cuffeyella
- †Cunctocrinus
- †Cuneamya
- †Cupularostrum
- †Cupulocorona
- †Cupulocrinus
- †Cyathaxonia
Fossilized calyx and partial stem of the Silurian-Permian crinoid ("sea lily") Cyathocrinites - †Cyathocrinites glenni – or unidentified comparable form
- †Cyathocrinites multibrachiatus
- †Cyathocrinites parvibrachiatus
- †Cyathocrinites pauli
- †Cyathocrinites sanduskyensis
- †Cyathocrinites striatissimus
- †Cyathocrinites wilsoni
- †Cyathophyllum – tentative report
- †Cycloconcha
- †Cyclocyclopa
- †Cyclogranisporites
- †Cycloholcus
- †Cyclonema
- †Cyclopentagonopa
Fossilized foliage from the Carboniferous seed fern Cyclopteris - †Cyclospongia
- †Cyclotrypa
- †Cylicocrinus
- †Cylindrophyllum
- †Cymatonota
Fossil of the Late Ordovician-Late Devonian trilobite Cyphaspis - †Cyphocrinus
- †Cyphotrypa
- †Cypricardinia
- †Cyrtia
- †Cyrtina
- †Cyrtocerina
- †Cyrtodontula
- †Cyrtolites
Fossilized shells of the Middle-Late Devonian brachiopod Cyrtospirifer - †Cystelasma
- †Cystihalysites
- †Cystiphylloides
- †Cystiphyllum
- †Cystodictya
- †Cytocrinus
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D
[edit]- †Dalejina
Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites - †Danaea
- †Dawsonoceras
- †Decadocrinus
- †Decadocrinus depressus
- †Decadocrinus stellatus – type locality for species
- †Decadorinus
- †Decaschisma
- †Decatocrinus
- †Deceptrix
- †Deceptrix albertina
- †Deceptrix decipiens – tentative report
- †Dechenella
- †Decoroproetus
- †Delicaster
- †Dellea
- †Delthyris
- †Deltoidospora
- †Dendrina – tentative report
- †Dendrocrinus
- †Densosporites
- †Desmacriocrinus
- †Desmidocrinus
- †Devonochonetes
- †Diabolirhynchia
- †Diabolorhynchia
- †Diaphorodendron
- †Diaphragmus
- †Dichocrinus
- †Dichostreblocrinus – type locality for genus
- †Dichostreblocrinus scrobiculus – type locality for species
- †Dicksonites – tentative report
- †Dicoelosia
- †Diconularia
- †Dictyoclostus
- †Dictyonema
- †Dictyospongia – tentative report
- †Diedrorynchus
- †Dielasma
- †Dielasmella
- †Diestoceras
- †Diestoceras cyrtocerinoides
- †Diestoceras eos
- †Diestoceras indianense
- †Diestoceras pupa
- †Diestoceras reversum – tentative report
- †Diestoceras shideleri
- †Diestoceras shiderleri
- †Diestoceras vasiforme
- †Diestoceras waynesvillense – type locality for species
- †Dimegelasma
- †Dimerocrinites
Mounted skull of the Late Devonian placoderm fish Dunkleosteus - †Dinobolus
- †Dinobolus conradi – or unidentified comparable form
- †Diplochone
- †Diplothmema
- †Diplotrypa
- †Disphyllum
- †Disphyllum cohaerens
- †Disphyllum synaptophylloides – type locality for species
- †Ditoecholasma
Fossils of the Carboniferous crinoid ("sea lily") Dizygocrinus - †Dizygocrinus indianaensis
- †Dizygocrinus indianensis
- †Dizygocrinus venustus – or unidentified comparable form
- †Dizygocrinus whitei – or unidentified comparable form
- †Dolatocrinus
- †Dolerorthis
- †Dorycrinus
- †Douvillina
- †Drabia – tentative report
Fossil of the Silurian-Late Devonian eurypterid ("sea scorpion") Drepanopterus - †Drymopora
- †Duncanella
- †Dyscritella
- †Dystactospongia
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E
[edit]- †Ecclimadictyon
- †Ecclimadictyon fastigiatum – or unidentified comparable form
- †Echinoconchus
- †Edaphophyllum
Life restoration of the Late Devonian-Carboniferous Chimaera relative Edestus - †Edmondia
- †Elasmonema
- †Elaterites
- †Eldredgeops
- †Elita
- †Elvinia
- †Elytron
- †Emmonsia
- †Emperocrinus
Fossil of the Middle Ordovician-Early Devonian trilobite Encrinurus - †Endosporites
- †Enterolasma
- †Eocaudia
- Eocaudina
- †Eochonetes
- †Eodictyonella (formerly Dictyonella)
- †Eodictyonella coralifera – or unidentified comparable form
- †Eodictyonella reticulata
- †Eohalysiocrinus
- †Eoparisocrinus
- †Eoplectodonta
- †Eoplicanoplia
- †Eospinatrypa
- †Eospirifer
- †Eotomaria
- †Eotomaria laphami
- †Eotomaria trochoides – type locality for species
- †Eotrochus
- †Eotrochus tenuimarginatus – type locality for species
- †Eratocrinus
Fossilized calyx and partial stem of the Carboniferous crinoid ("sea lily") Eretmocrinus - †Eretmocrinus cassedayanus – tentative report
- †Eretmocrinus magnificus
- †Eridophyllum
- †Eridopora
- †Eridorthis
Fossils (figures 2-10) of the Silurian-Devonian eurypterid ("sea scorpion") Erieopterus - †Eucalyptocrinites
- †Eucheirocrinus
- †Euchondria
- †Euchondria grandis – tentative report
- †Euconospira
- †Euconospira conula – type locality for species
- †Euconospira elegantula – type locality for species
- †Eugeneodus – type locality for genus
- †Eugeneodus richardsoni – type locality for species
- †Eumetria
- †Eunella
- †Eunema
- †Eunicites
- †Euomphalopterus
- †Eupachycrinus
- †Eurychilina
- †Eusphenopteris
- †Euthyrhachis
- †Eutrophoceras
F
[edit]- †Fabalicypris
- †Fardenia
Fossil of the Late Ordovician-Permian tabulate coral Favosites - †Favosites arbor
- †Favosites baculus
- †Favosites biloculi
- †Favosites clelandi
- †Favosites cristatus
- †Favosites discoideus
- †Favosites favosus
- †Favosites forbesi
- †Favosites forbsei
- †Favosites goodwini
- †Favosites hisingeri
- †Favosites hispidus – or unidentified comparable form
- †Favosites impeditus
- †Favosites mundus
- †Favosites niagarensis
- †Favosites occidentalis
- †Favosites patellatus – type locality for species
- †Favosites pirum
- †Favosites placentus
- †Favosites proximatus
- †Favosites quercus
- †Favosites ramulosus
- †Favosites rotundituba
- †Favosites spinigerus
- †Favosites turbinatus
- †Fayettoceras
Fossil of the Middle Ordovician-Late Triassic bryozoan ("moss animal") Fenestella - †Fenestralia
- †Ferganella
- †Fimbrispirifer
- †Finitiporus
- †Fistulipora
- †Fletcheria
- †Flexaria
- †Flexaria annosa – or unidentified related form
- †Flexaria floydensis
Front (left) and right side (right) views of an enrolled fossil of the Middle Ordovician-Silurian trilobite Flexicalymene - †Florinites
- †Floweria
G
[edit]- †Gattendorfia
- †Gattendorfia alteri – type locality for species
- †Gazacrinus
- †Gennaeocrinus
- †Gigantopteris
Fossilized calyx and partial stem of the Devonian-Carboniferous crinoid ("sea lily") Gilbertsocrinus - †Gilliodus
- †Gilliodus orvillei – type locality for species
- †Gilliodus peyeri – type locality for species
- †Girtyella
- †Girtyspira
- †Girtyspira canaliculata – type locality for species
- †Gissocrinus
- †Glabrocingulum
Life restoration of the Carboniferous shark Glikmanius - Glomospira
- †Glyphodeta
- †Glyphodeta terebriformis – type locality for species
- †Glyptambon
- †Glyptaster
- †Glyptocrinus
- †Glyptodesma
- †Glyptopora
- †Glyptorthis
Diagram depicting the restored internal anatomy and multiple views of the shell of the Silurian nautiloid cephalopod Gomphoceras - †Gomphocystites
- †Gorbyoceras
- †Gosseletina
- †Gosseletina subglobosa – type locality for species
- †Granasporites
- †Granatocrinus
- †Granatocrinus granulosus – tentative report
- †Granulatisporites
- †Granulatisporites granularis
- †Granulatisporites minutus
- †Granulatisporites pallidus
- †Granulatisporites parvus – or unidentified comparable form
- †Granulatisporites tuberculatus
- †Graphiadactyllis
- †Graphiadactylloides
- †Graphiadactylloides imopmemsos
- †Graphiadactylloides lineatus – or unidentified related form
- †Graphiadactylloides moridgei
- †Graphiadactylloides unionensis
- †Graphiadactylus
- †Graphosterigma
- †Graptodictya
- †Greenops
Multiple views of a fossil of the Ordovician horn coral Grewingkia - †Griffithidella
- †Gypidula
H
[edit]- †Hadroblastus
- †Hadrophyllum
Fossil of the Ordovician bryozoan ("moss animal") Hallopora - †Halysiocrinus
- †Halysites
- †Hamburgia
- †Haplistion
- †Hapsiphyllum
- †Harpidella
- †Harpidium – tentative report
- †Healdia
- †Hebertella
- †Hedeina
- †Hederella
- †Helicotoma
- †Heliolites
Fossil of the Middle Devonian horn coral Heliophyllum - †Helodus
- †Helopora
- †Hemitrypa
- †Hennigopora
- †Heslerodus
- †Hesperorthis
- †Heteralosia
- †Heterangium
- †Heterophrentis
- †Heterotrypa
Fossil of the Devonian colonial rugose coral Hexagonaria, also known as a Petoskey stone - †Hexameroceras
- †Hindella – tentative report
- †Hindia
- †Hippocardia
- †Hirneacrinus
- †Hirneacrinus cupellaeformis – type locality for species
- †Hirneacrinus perplanus – type locality for species
- †Hiscobeccus
- †Histocrinus
- †Hizemodendron
- †Hoareicardia
- †Holcocrinus
- †Holcospermum
- †Holocystites
- †Holocystites abnormalis
- †Holocystites abnormis
- †Holocystites alternatus
- †Holocystites clavus
- †Holocystites faberi – or unidentified comparable form
- †Holocystites ornatus
- †Holocystites ovatus
- †Holocystites parvulus
- †Holocystites perlongus
- †Holocystites scutellatus
- †Holocystites spangleri
- †Holocystites splendens
Fossilized shells of the Ordovician-Carboniferous sea snail Holopea - †Holtedahlina
- †Homalophyllum
- †Homocrinus
- †Homoeospira
- †Homotrypa
- †Homotrypa alta – or unidentified related form
- †Homotrypa austini – or unidentified comparable form
- †Homotrypa communis
- †Homotrypa flabellaris
- †Homotrypa gelasinosa
- †Homotrypa nodulosa – or unidentified comparable form
- †Homotrypa richmondensis
- †Homotrypa wortheni
- †Homotrypella
- †Hondichnus
- †Hormotoma
- †Howellella
- †Hydnoangulus – type locality for genus
- †Hydnoangulus quadratus – type locality for species
- †Hydriodictya – tentative report
- †Hylodecrinus
- Hyperammina
- †Hypergonia
- †Hypergonia attenuata – type locality for species
- †Hypergonia turritella – type locality for species
- †Hypergonia vermicula – type locality for species
- †Hypselocrinus
I
[edit]- †Ichthyorachis
- †Icriodus
- †Icthyocrinus
- †Ildraites
- †Illaenoides
- †Illaenus
- †Imbrexia
- †Imitoceras
- †Iniopera – type locality for genus
- †Iniopera richardsoni – type locality for species
Life restoration of the Carboniferous Chimaera relative Iniopteryx - †Inocaulis
- †Intrapora
- †Iocrinus
- †Ischadites
- †Ischyrodonta
- †Isobuthus
- †Isobuthus pottsvillensis – type locality for species
- †Isochilina
- †Isorthis
- †Isorthis arcuaria – or unidentified related form
Fossil of the Middle-Late Ordovician giant trilobite Isotelus.
K
[edit]- †Kallimorphocrinus – type locality for genus
- †Kallimorphocrinus astrus – type locality for species
- †Kalymma
- †Karinopteris
- †Kaskia
- †Kindbladia
- †Kindleoceras
- †Kingstonia
- †Kionelasma
Fossilized shells of the Middle Ordovician-Permian nautiloid cephalopod Kionoceras - †Kionoceras bellense – or unidentified comparable form
- †Kionoceras cancellatum
- †Kionoceras delphiense
- †Kirkbya
- †Kirkbyella
- †Kirkidium
- †Kirkidium knighti – or unidentified comparable form
- †Kirkidium laqueatum
- †Knightites
- †Knoxina
- †Knoxisporites
- †Kodonophyllum
- †Kodonophyllum mulleri – or unidentified comparable form
Life restoration of the Silurian eurypterid ("sea scorpion") Kokomopterus - †Kosovopeltis
L
[edit]- †Labechia
- †Laevigatosporites
- †Lambeoceras
- †Lampadosocrinus
- †Langepis
- †Langepis campbelli – type locality for species
- †Laurelocrinus
- †Leangella
- †Lebedictya
- †Lebetocrinus
- †Lecanocrinus
- †Lechritochoceras
- †Lecythiocrinus – tentative report
- †Leiorhynchus
- †Leiotriletes
- †Leodicites
- †Leodicites imparilis – or unidentified related form
- †Leodicites variedentatus
- †Lepadocystis
- †Leperditia
- †Lepetopsis
- †Lepetopsis levettei – type locality for species
- †Lepidocarpon
- †Lepidocyclus
Restoration of the Carboniferous-Late Triassic club moss relative Lepidodendron. Eli Heimans (1911). - †Lepidophloios
- †Lepidophloios hallii
- †Lepidophloios laricinus – or unidentified comparable form
- †Lepidophyllum
- †Lepidostrobophyllum
- †Lepidostrobophyllum affine
- †Lepidostrobophyllum ovatifolius
- †Lepidostrobophyllum princeps – or unidentified comparable form
- †Lepidostrobus
- †Lepidostrobus incertus – or unidentified comparable form
- †Lepidostrobus variabilis
- †Leptaena
- †Leptoconocardium
- †Leptoconocardium catastomum – type locality for species
- †Leptodesma
- †Leptotrypella
- †Lesueurilla
- †Lichas
- †Lichenalia
- †Liljevallospira
- †Limoptera
Shell of the Cambrian-modern brachiopod Lingula - †Lingulops
- †Linoproductus
- †Linopteris
- †Liospira
- †Lissatrypa
- †Litocrinus
- †Llanoaspis – tentative report
- †Lobatopteris
- †Lobatopteris vestita – or unidentified comparable form
- †Lobomelocrinus
- †Lophoblastus
- †Lophoblastus inopinatus – or unidentified comparable form
- †Lophospira
- †Lophotriletes
- †Loxonema
- †Lumbriconerites
- †Lumectaster
- †Lunulazona – tentative report
- †Lycospora
- †Lyginorachis
- †Lyriocrinus
- †Lyrodesma
- †Lyropora
- †Lyroporella
- †Lysocystites
- †Lytospira
M
[edit]- †Macrocrinus
- †Macrocrinus mundulus – tentative report
- †Macrocrinus strotobasilaris
- †Macrocrinus strotobasilarsis
- Macrocypris – tentative report
- †Macrostachya
- †Macrostylocrinus
- †Manicrinus
- †Manitoulinoceras
- †Marginatia
- †Marginirugus
- †Mariopteris
- †Mariopteris hymenophylloides – tentative report
- †Mariopteris mazoniana
- †Mariopteris muricata
- †Mariopteris nervosa
- †Marsupiocrinus
- †Martinia
- †Maurotarion
- †Mediospirifer
- †Medullosa
- †Meekopora
- †Megakozlowskiella
- †Megalomphala
- †Megalomus
- †Megastrophia
- †Megistocrinus
- †Melocrinites
- †Melonechinus
- †Mendacella
- †Meniscophyllum
- †Menoeidina
- †Merista
Illustration (lower right, entry 15) of a fossilized shell in front and side views of the Silurian-Late Devonian brachiopod Meristella - †Meristina
- †Merocanites
- †Mesocyridira
- †Mesocyridira bifurcata
- †Mesocyridira flagrocosta
- †Mesocyridira keokuk
- †Mesocyridira pallaensis – or unidentified related form
- †Mesocyridira pellaensis – or unidentified related form
- †Mesocyridira washingtonensis
- †Mesoleptostrophia
- †Mesoneuron
- †Mesotrypa
- †Metriophyllum
- †Miamoceras
- †Michelinia
- †Microantyx
- †Microantyx botoni – type locality for species
- †Microcheilinella
- †Microplasma
- †Microreticulatisporites
- †Mirocheilinella
- †Mixoneura – tentative report
- †Modiolopsis
- †Modiolopsis concentrica – tentative report
- †Modiolopsis modiolaris
- †Modiolopsis versaillesensis
- †Modiomorpha
- †Monodechenella
- †Monomorella
- †Monotrypa
- †Monotrypella
- †Mooreisporites
- †Mooreoceras
- †Mourlonia
- †Mucophyllum
Fossilized shell of the Devonian brachiopod Mucrospirifer - †Muensteroceras
- †Mulceodens
- †Mulceodens jaanussoni – or unidentified comparable form
- †Murchisonia
- †Murchisonia laphami
- †Murchisonia subulata
- †Murchisonia vincta – type locality for species
- †Murchisonida
- †Myalina
- †Myelodactylus
- †Mysticocrinus
N
[edit]- †Natica
- †Natica littonana – type locality for species
- †Naticonema
Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis - †Naticopsis carleyana – type locality for species
- †Naticopsis plebeia
- †Navispira
- †Neilsonia
- †Neilsonia insculpta – type locality for species
- †Nematopora
- †Neolageniocrinus
- †Neolageniocrinus cassidus – type locality for species
- †Neopalaeaster
- †Neozaphrentis
- †Nereidavis
Fossilized frond of the Carboniferous seed fern Neuropteris - †Nicklesopora
- †Nikiforovella
- †Nipterocrinus
- †Nucleocrinus
- †Nucleospira
- †Nucleospira concentrica – or unidentified comparable form
- †Nucleospira concinna
- †Nucleospira pisiformis
- †Nucleospira rowleyi – or unidentified related form
- †Nucularca
- †Nuculites
- †Nuculopsis
O
[edit]- †Odontophyllum
Restoration of the Late Ordovician-Middle Devonian trilobite Odontopleura - †Odontopteris
- †Ohiocrinus
- †Oligocarpia
- †Omospira
- †Omospira alexandra – or unidentified comparable form
- †Omphalophloios[1]
- †Omphalophloios wagneri – type locality for species[1]
- †Oncoceras
- †Onniella
- †Onychaster
Fossil of the Carboniferous crinoid ("sea lily") Onychocrinus - †Onychopterella
- †Oonoceras
- †Ophiletina
- †Opisthoptera
- †Orbiculoidea
- †Oriostoma
- †Oriostoma globosum – or unidentified comparable form
- †Oriostoma hoyi
- †Ornithoprion – type locality for genus
- †Ornithoprion hertwigi – type locality for species
Restoration of the Carboniferous-Permian cartilaginous fish Orodus - †Orodus greggi – type locality for species
- †Orodus micropterygius – type locality for species
- †Orthis
- †Orthodesma
- †Orthonybyoceras
- †Orthonychia
- †Orthopleura
- †Orthostrophia
- †Orthotetes
- †Ortonella
- †Osgoodicystis
- †Otarion
- †Ovatia
- †Ovatia ovata – tentative report
- †Ovatia ovatus
- †Oxyprora
- †Oxyprora carinatum – type locality for species
P
[edit]- †Pachydictya
- †Pachylocrinus
- †Pachytesta
- †Pachytesta vera – or unidentified comparable form
- †Palaeacis
- †Palaeocapulus
- †Palaeoconcha
- †Palaeoneilo
- †Palaeostachya
- †Paleofavosites – tentative report
- †Paleospora
- †Paleostachya
- †Paliphyllum
- †Palmatolepis
- †Palmatopteris
- †Paolia – type locality for genus
- †Paolia vetusta – type locality for species
- †Paoliola
- †Paoliola gurleyi – type locality for species
- †Paracolocrinus
- †Paraconularia
- †Paraconularia chesterensis – tentative report
- †Paraconularia crawfordsvillensis
- †Paracyclas
- †Paradichocrinus
- †Paragazacrinus
- †Parallelodon
- †Parallelodon obsoletus – tentative report
- †Parallelodon tenuistriatus
- †Paralycopodites
- †Paraparchites
Assemblage of the Early-Middle Devonian brachiopod Paraspirifer - †Parazyga
- †Parichthyocrinus
- †Parisocrinus
- †Parvohallopora
- †Passalocrinus
- †Patelliocrinus
- †Paulicystis
- †Paulocrinus
- †Paupospira
- †Paupospira bowdeni
- †Paupospira moorei – type locality for species
- †Paupospira tropidophora
Fossils of the Late Devonian-Permian fern-like fronds Pecopteris - †Pecopteris cisti
- †Pecopteris clintoni
- †Pecopteris miltonii
- †Pecopteris polymorpha
- †Pecopteris pseudovestita – tentative report
- †Pecopteris serpillifolia – tentative report
- †Pecopteris squamosa
- †Pelagiella
- †Pellecrinus
- †Pemtremites
- †Penniretepora
- †Pennsylvanioxylon
- †Pentacystis
- †Pentagonia
- †Pentamerella
- †Pentameroceras
- †Pentamerus
- †Pentaramicrinus
Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites - †Pentremites abruptus
- †Pentremites angularis
- †Pentremites buttsi
- †Pentremites clavatus
- †Pentremites conoideus
- †Pentremites elegans
- †Pentremites girtyi
- †Pentremites halli
- †Pentremites hambachi
- †Pentremites maccalliei
- †Pentremites okawensis
- †Pentremites patei
- †Pentremites platybasis
- †Pentremites pyramidatus
- †Pentremites pyriformis
- †Pentremites robustus
- †Pentremites springeri
- †Pentremites symmetricus
- †Pentremites tulilpaformis
- †Pentremites tulipaformis
- †Pentremites welleri
- †Pentremitidea – tentative report
- †Perditocardinia
- †Periastron
- †Pericyclus
- †Periechocrinites
Fossil of the Silurian-Carboniferous crinoid ("sea lily") Periechocrinus - †Peronopora
- †Petalocrinus
- †Petigopora
- †Petrocrania
- †Phacelocrinus
Fossil of the Late Ordovician-Late Devonian trilobite Phacops - †Phaenopora
- †Phaenoschisma
- †Phanocrinus
- †Phestia
- †Philhedra
- †Phillipsia
- †Phimocrinus – report made of unidentified related form or using admittedly obsolete nomenclature
- †Pholadomorpha
- †Pholidops – report made of unidentified related form or using admittedly obsolete nomenclature
- †Pholidostrophia
- †Phosphannulus
- †Phractopora
- †Phragmoceras
- †Phragmodictya
- †Phragmolites
- †Phymatophyllum
- †Physospongia
- †Pietzschia
- †Pinna
- †Pinnularia
- †Pisocrinus
- †Pisocrinus benedicti – or unidentified comparable form
- †Pisocrinus campana
- †Pisocrinus gemmiformis
- †Pisocrinus gorbyi
- †Pisocrinus quinquelobus
Fossilized shell of the Ordovician brachiopod Plaesiomys - †Planalvus – tentative report
- †Plasmopora
- †Platyaxum
Fossilized shell of the Silurian-Early Triassic sea snail Platyceras - †Platyceras argo – tentative report
- †Platyceras brownsportense
- †Platyceras bucculentum
- †Platyceras clintonensis
- †Platyceras cornutum – or unidentified comparable form
- †Platyceras crassum
- †Platyceras daytonense
- †Platyceras echinatum
- †Platyceras erectum
- †Platyceras lineatum
- †Platyceras niagarense
- †Platyceras niagarensis
- †Platyceras plebium
- †Platycrinites
- †Platycrinus
- †Platyrachella
Fossilized shell of the Middle Ordovician-Silurian brachiopod Platystrophia - †Platystrophia acutilirata
- †Platystrophia annieana
- †Platystrophia attenuata
- †Platystrophia biforata – or unidentified comparable form
- †Platystrophia clarksvillensis
- †Platystrophia cummingsi
- †Platystrophia cypha
- †Platystrophia daytonensis
- †Platystrophia elkhornensis
- †Platystrophia foerstei
- †Platystrophia hopensis
- †Platystrophia laticosta
- †Platystrophia moritura
- †Platystrophia ponderosa
- †Platyzona
- †Platyzona trilineata – type locality for species
- †Pleapopleurus
- †Pleapopluerus
- †Pleapopluerus tenuicostatus – tentative report
- †Plectatrypa
- †Plectodonta
- †Plectorthis
- †Plectospira
- †Plectospirifer
- †Pleurocornu
- †Pleurocornu amissum – or unidentified comparable form
Fossil of the Silurian-Carboniferous tabulate coral Pleurodictyum - †Pleuronotus
- †Pleurorthoceras
- †Poleumita
Various conodont elements of Polygnathus - †Polypora
- †Polysacos – type locality for genus
- †Polysacos vickersianum – type locality for species
- †Polytryphocycloides
- †Polyxylon
- †Portlockiella
- †Poterioceras – tentative report
- †Poteriocrinites
- †Poteriocrinites amplus – type locality for species
- †Potonieisporites
- †Prasopora
- Priscopedatus
- †Prismopora
- †Pristiograptus
- †Probillingsites
- Proboscina
- †Prodromites
- †Productus
Restoration of the Silurian trilobite Proetus - †Prolecanites
- †Prolecythiocrinus
- †Promexyele
- †Promexyele bairdi
- †Promexyele peyeri – type locality for species
- †Propora
- †Prosolarium
- †Protaraea
- †Protatrypa
- †Proteonina
- †Protocalamites
- †Protocanites
- †Protochonetes – tentative report
- †Protokoinoceras
- †Protolepidodendron
- †Protoleptostrophia
- †Protomegastrophia
- †Protoniella
- †Protoniella parva – or unidentified related form
- †Protophragmoceras
- †Protosalvinia
- Psammosphaera
Life restoration of the Devonian-Permian tree fern Psaronius. Auguste Faguet (1877). - †Pseudagnostus
- †Pseudastrorhiza
- †Pseudaviculopecten
- †Pseudoatrypa
- †Pseudobythocypris
- †Pseudocolpomya
- †Pseudolingula
- †Pseudostrohiza
- †Pseudosyrinx
- †Pseudozygopleura
- †Pseudozygopleura yandellana – type locality for species
- †Psiloconcha
- †Psilokirkbyella
Interior and exterior of the shell of a Pteria, or winged oyster - †Pterinea
- †Pterinopecten
- †Pterocephalia
- †Pterotheca
- †Pterotheca expansa
- †Pterotheca intermedia – type locality for species
- †Pterotocrinus
Restoration of the Silurian-Middle Devonian eurypterid ("sea scorpion") Pterygotus - †Ptychocarpus
- †Ptychopleurella
- †Ptylopora
- †Punctatisporites
- †Punctatosporites
- †Punctospirifer
- †Pustulocystis
- †Pycnosaccus
_-_Pteriidae_-_Mollusc_shell.jpeg?lang=en)
Q
[edit]- †Quasillinites
- †Quasillites – tentative report
- †Quassilites
R
[edit]- †Rafinesquina
- †Raistrickia
- †Raphistomina
- †Raphistomina modesta – or unidentified comparable form
- †Rasmussenoceras
- †Rectifenestella
- †Rectobaidia
- †Rectobaidia fragosa – or unidentified related form
- †Reimannia
- †Renalcis – tentative report
- †Renaultia
- Reophax
- †Resserella
- †Reticulariina
- †Reticulatisporites
- †Reticulitriletes
- †Reticulopteris
- †Retispira
- †Retispira textilis – type locality for species
- †Retoporina
- †Retrorsirostra
- †Retzia
- †Rhabdocarpus
- †Rhabdocarpus mamillatus
- †Rhabdocarpus mansfieldi – or unidentified comparable form
- †Rhabdocarpus multistriatus
- †Rhabdomeson
- †Rhadinichthys
- †Rhegmaphyllum – tentative report
- †Rhineoderma
- †Rhineoderma nodulostriata – type locality for species
- †Rhineoderma wortheni – type locality for species
- †Rhinidictya
- †Rhipdomella
- †Rhipidium
- †Rhipidomella
- †Rhipidomella hybrida
- †Rhipidomella missouriensis
- †Rhipidomella penelope
- †Rhipidomella perminuta
- †Rhipidomella tenuicosta – or unidentified comparable form
- †Rhipidomella vanuxemi
- †Rhipidothyris
- †Rhombopora
- †Rhombotrypa
Fossilized shell of the Silurian-Eocene articulate brachiopod Rhynchonella - †Rhynchopora
- †Rhynchopora beecheri
- †Rhynchopora perryensis – tentative report
- †Rhynchopora rowleyi – tentative report
- †Rhynchotrema
- †Rhynchotreta
- †Rhysocamax
- †Rhytimya
- †Richmondoceras – type locality for genus
- †Richmondoceras brevicameratum – type locality for species
- †Rineceras
- †Rineceras digonum – tentative report
- †Romingerella
- †Romingerella major – or unidentified comparable form
- †Romingeria
- †Ropalonaria
- † Rota
- †Rotiphyllum
- †Roundyella
- †Rugomena
- †Rugosochonetes
S
[edit]- †Saccocrinus
- †Saccosompsis
- †Saffordotaxis
- †Salpingostoma
- †Samaropsis
- †Samaropsis crampii – or unidentified comparable form
- †Sandalodus
- †Sanguinolites
- †Sanguinolites herricki – tentative report
- †Sanguinolites tropidophorus
- †Sapphicorhynchus
- †Sarocrinus
- †Savitrisporites
- †Scalarituba
- †Scalites
- †Scenophyllum
- †Schellwienella
- †Schizobolus
- †Schizonema – tentative report
- †Schizophoria
- †Schlotheimophyllum
- †Schoenaster
- †Schopfites
- †Schuchertella
- †Schuchertella costatula
- †Schuchertella lens – tentative report
- †Schuchertella subplana
- †Schuchertoceras
- †Schulzospora
Fossilized calyx of the Carboniferous crinoid ("sea lily") Scytalocrinus - †Scytalocrinus decadactylus
- †Scytalocrinus disparilis – or unidentified comparable form
- †Scytalocrinus robustus
- †Senftenbergia
- †Septopora
- †Serpulopsis
- †Serpulospira
- †Setigerites
- †Shideleroceras
- †Shivaella
- †Sibyrhynchus – type locality for genus
- †Sibyrhynchus denisoni – type locality for species
- †Siderella
- †Sidetes
- †Sievertsia
Fossilized stump of the Carboniferous-Permian club moss relative Sigillaria - †Sigillaria brardii
- †Sigillaria davreuxi
- †Sigillaria kidstoni – tentative report
- †Sigillaria mamillaris – or unidentified comparable form
- †Sigillaria monostigma
- †Sigillaria scutellata
- †Sigillariostrobus
- †Silenites
- †Silenites warei – or unidentified comparable form
- †Sinochonetes
- †Sinuites
- †Sinuitina
- †Siphonophrentis
- †Skelidorygma
- †Skenidioides
- Sorosphaera – tentative report
- †Sowerbyella
- †Spackmanites
- †Spackmanites facierugosus – or unidentified comparable form
- †Spackmanites habibii
- †Spathella
- †Spathiocaris
- †Spathognathodus
- †Spathognathodus snadjri – or unidentified comparable form
- †Spatiopora
- †Sphaerexochus
- †Sphaerirhynchia
- †Sphaerocodium
- †Sphaerocyclus – report made of unidentified related form or using admittedly obsolete nomenclature
- †Sphenophyllostachys
Fossilized leaves and branches of the Devonian-Triassic horsetail relative Sphenophyllum - †Sphenopteris
- †Sphenosphaera
- †Sphenosphaera mohri
- †Sphenosphaera subangularis – type locality for species
- †Spinocyrtia
- †Spinozonotriletes
- †Spinulicosta
- †Spinyplatyceras
Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer - †Spirifer angusta
- †Spirifer bifurcatus
- †Spirifer byrnesi
- †Spirifer crawfordsvillensis
- †Spirifer floydensis – tentative report
- †Spirifer fornaculus
- †Spirifer increbescens
- †Spirifer keokuk
- †Spirifer macrus
- †Spirifer montgomeryensis
- †Spirifer mundulus – or unidentified comparable form
- †Spirifer pellaensis – tentative report
- †Spirifer rostellatus
- †Spirifer shepardi – or unidentified related form
- †Spirifer shephardi – or unidentified related form
- †Spirifer tenuicostatus
- †Spirifer tenuimarginatus
- †Spirifer varicosus
- †Spirifer veronensis – or unidentified comparable form
- †Spirifer washingtonensis
- Spiropteris
Modern shells of the polychaete worm Spirorbis - †Spiroscala
- †Sporangites
- †Springericrinus
- †Springericrinus doris – tentative report
- †Springericrinus magniventrus – tentative report
- †Spyroceras
- †Stacheia
- †Staurocephalus
- †Stegerhynchus
- †Stegerhynchus indianense
- †Stegerhynchus indianensis
- †Stegerhynchus neglectum – or unidentified comparable form
- †Stegerhynchus neglectus
- †Stegerhynchus whitii
- †Stelastellara
- †Stelliporella
- †Stelliporella lamellata – or unidentified comparable form
- †Stenoloron
- †Stenoloron swallovana – type locality for species
- †Stenopareia
- †Stenoscisma
- †Stephanocrinus
- †Stereolasma
- †Stereolasma exile – tentative report
- †Stereolasma parvulum
- †Stethacanthulus – type locality for genus
- †Stethacanthulus longipeniculus – type locality for species
- †Stethacanthulus meccaensis
Life restorations of a male (foreground) and female (background) of the Late Devonian-Carboniferous Chimaera relative Stethacanthus - †Stethacanthus altonensis
- †Stethacanthus longipeniculus – type locality for species
- †Stictoporina
- †Stigmaria
- †Stigmatella
- †Stinocrinus
- †Stiptocrinus
- Stomatopora
- †Straparollus
- †Straparollus planodiscus
- †Straparollus quadrivolvis – type locality for species
- †Straparollus spergenensis – type locality for species
- †Streblotrypa
- †Streblotrypella
- †Streptelasma
- †Striatopora
- †Striatopora alba – tentative report
- †Striatopora bellistriata
- †Striatopora cavernosa
- †Striatopora flexuosa
- †Stricklandia – tentative report
- †Striispirifer
- †Stromatopora
- †Stropeodonta
- †Stropheodonta
- †Strophochonetes
- †Strophodonta
Fossilized shell of the Ordovician-Silurian brachiopod Strophomena - †Strophonella
- †Strophostylus
- †Styliolina
- †Stylolina
- †Subglobosochonetes
- †Sulcatina
- †Sulcoretepora
- †Sumixam – type locality for genus
- †Sumixam maximus – type locality for species
- †Sutcliffia
- †Synbathocrinus
- †Synchysidendron
Fossil of the Devonian tabulate coral Syringopora - †Syringoporida
- †Syringothyris
- †Syringothyris subcuspidatus – or unidentified comparable form
- †Syringothyris textus
T
[edit]- †Tabulipora
- †Taeniodictya
- †Tamiobatis
- †Tasmanites
Fossil of the Silurian-Carboniferous crinoid ("sea lily") Taxocrinus (right) - †Taxocrinus colletti
- †Taxocrinus ungula – tentative report
- †Tentaculites
- †Tetradium
- †Tetranota
- †Tetrasacculus
- †Tetrasacculus stewarte – tentative report
- †Thalamocrinus
Fossils of the burrow ichnogenus Thalassinoides - †Thalassoinoides
- †Thamniscus
- †Thamnopora
- †Thamnoptychia
- †Thamnoptychia alpenensis
- †Thamnoptychia tuberculata – type locality for species
- †Thecia
- †Thecia minor – or unidentified comparable form
- †Thuraminoides
- Thurammina
- †Thuramminoides
- †Thuroholia
- †Thuroholia spicatus – type locality for species
- †Thymospora
- †Tolypaminna
- †Tolypammina
- †Tolypammina bransoni
- †Tolypammina bulbosa
- †Tolypammina cyclops
- †Tolypammina gersterensis
- †Tolypammina jacobschapelensis
- †Tolypammina laocoon – or unidentified related form
- †Tolypammina rotula
- †Torispora
- †Torynifer
- †Tremanotus
- †Trematis
- †Trematocystis
- †Trematopora
- †Trepeilopsis
Fossilized shell of the Ordovician nautiloid cephalopod Treptoceras - †Triamara
- †Triamara laevis
- †Triamara tumida
- †Triamara ventricosa – type locality for species
- †Triangulotarbus – type locality for genus
- †Triangulotarbus terrehautensis – type locality for species
- †Tricopelta
Fossil of the Cambrian trilobite Tricrepicephalus - †Trigonocarpus
- †Trigonoglossa
- †Trimerella
- †Trimerus
- †Trimoceras
- †Triplesia
- †Triquitrites
- †Trochonema
- †Trochonema madisonense
- †Trochonema umbilicata – or unidentified comparable form
- †Trochophyllum
- †Troosticrinus
- †Trophocrinus
- †Tropidocaris
- †Tropidoleptus
- †Tryplasma
- †Tubelelloides
- †Tuberculatosporites
- †Tubulelloides
- †Turneropterum – type locality for genus
- †Turneropterum turneri – type locality for species
- †Turrilepas
- †Twenhofelella
- †Twenhofelella waldroni – type locality for species
- †Tylothyris
U
[edit]- †Undulabucania
- †Undulabucania gorbyi – type locality for species
- †Unispirifer
- †Unispirifer lateralis
- †Unispirifer rundlensis – or unidentified related form
- †Uperocrinus
V
[edit]- †Valvisporites
- †Vandelooaster
- †Vaurealispongia
- †Vaurealispongia minuta – type locality for species
- †Vermiforichnus
- †Vermiformichnus
- †Verrucosisporites
- †Vesicaspora
- †Vesicasporites
- †Vestispora
- †Voiseyella
- †Voiseyells
- †Voiseyells novamexicana – or unidentified related form
- †Vorticina
W
[edit]- †Waltzispora
- †Warsawia
- †Waylandella
- †Welleroceras
- †Whitfieldella
- †Whitfieldoceras – tentative report
- †Whittleseya
- †Wilsonicrinus
- †Wilsoniella
- †Wilsonites
- †Worthenopora
X
[edit]Y
[edit]- †Youngiella – tentative report
Z
[edit]- †Zaphrenthis
- †Zeacrinites
- †Zittelloceras
- †Zonidiscus
Fossil of the feeding trace ichnogenus Zoophycos - †Zophocrinus
- †Zygospira
References
[edit]- ^ a b Stanislav Opluštil; Josef Pšenička; Jiří Bek (2019). "Omphalophloios wagneri sp. nov., a new sub-arborescent lycopsid from the middle Moscovian (Middle Pennsylvanian) of the Illinois Basin, USA". Review of Palaeobotany and Palynology. 271: Article 104105. doi:10.1016/j.revpalbo.2019.104105.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017.
