# List of the Paleozoic life of West Virginia

This list of the Paleozoic life of West Virginia contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of West Virginia and are between 538.8 and 252.17 million years of age.

## A

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* †Acosmoblatta
** †Acosmoblatta eakiniana – type locality for species
** †Acosmoblatta permacra – type locality for species
* †Acrospirifer
* †Adiantities
** †Adiantities beechensis – type locality for species
* †Adiantites
** †Adiantites tenuifolius
* †Ageleodus
* Fossilized fronds of the Carboniferous-Early Cretaceous seed fern Alethopteris †Alethopteris
** †Alethopteris ambigua – or unidentified comparable form
** †Alethopteris aquilina
** †Alethopteris decurrens
** †Alethopteris evansii
** †Alethopteris gigas
** †Alethopteris grandini
** †Alethopteris grandifolia – or unidentified comparable form
** †Alethopteris massilionis
** †Alethopteris lonchitica
** †Alethopteris parva
** †Alethopteris pennsylvanica
** †Alethopteris serlii
*** †Alethopteris serlii var. americana
*** †Alethopteris serlii var. europaea
** †Alethopteris sternberg
** †Alethopteris virginiana
* †Allenella
** †Allenella tullius
* †Amblyblatta
** †Amblyblatta lata – type locality for species
* †Ambocoelia
** †Ambocoelia gregaria
** †Ambocoelia umbonata
* †Amoeboblatta
** †Amoeboblatta permanenta – type locality for species
* †Aneimites
** †Aneimites adiantoides
** †Aneimites fertilis – previously classified as †Wardia fertilis
** †Aneimites tenuifolius – or unidentified related form
* †Aneurophyton – or unidentified related form
** †Aneurophyton olnense
* Fossil of the Carboniferous horsetail relative Annularia †Annularia
** †Annularia acicularis
** †Annularia asteris
** †Annularia carinata
** †Annularia cuspidata
** †Annularia galoides
** †Annularia minuta
** †Annularia mucronata
** †Annularia radiata
** †Annularia ramosa
** †Annularia sphenophylloides
** †Annularia stellata
* †Anoplea
** †Anoplea nucleata
* †Anthraconauta
* †Aparchites
** †Aparchites obliquatus
** †Aparchites punctillosa
* †Apempherus
** †Apempherus complexinervis – type locality for species
** †Apempherus fossus – type locality for species
* †Aphlebia
** †Aphlebia filiciformis
*** †Aphlebia filiciformis var. majus
** †Aphlebia laciniata
** †Aphlebia lactuca
** †Aphlebia speciosissima
** †Aphlebia spinosa
* †Archaeopteridium
** †Archaeopteridium tschermackei
* †Archaeopteris
** †Archaeopteris halliana
** †Archaeopteris hibernica
** Life restoration of the Late Devonian-Carboniferous tree Archaeopteris macilenta with insets detailing its anatomy †Archaeopteris macilenta
** †Archaeopteris obusa
** †Archaeopteris sphenophyllifolia
** †Archaeopteris stricta – or unidentified related form
* †Areomartus – type locality for genus
** †Areomartus ovatus – type locality for species
* †Arrhythmoblatta
** †Arrhythmoblatta detecta – type locality for species
** †Arrhythmoblatta scudderiana – type locality for species
* †Artisia
** †Artisia approximata
* †Asolanus
** †Asolanus camptotaenia
* †Asterocalamites
** †Asterocalamites scrobiculatus
* †Asterophyllites
** †Asterophyllites charaeformis
** †Asterophyllites equisetiformis
** †Asterophyllites erectifolius
** †Asterophyllites gracilis
** †Asterophyllites longifolius
** †Asterophyllites lycopodioides
** †Asterophyllites minutus
** †Asterophyllites rigidus
* †Athyris
** †Athyris angelica
* †Atrypa
** †Atrypa reticularis – report made of unidentified related form or using admittedly obsolete nomenclature
* †Aulacotheca
** †Aulacotheca campbellii
* †Aulopora
* Mold fossil of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten †Aviculopecten
** †Aviculopecten batesvillensis
** †Aviculopecten crenistriatus – or unidentified comparable form

## B

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* †Baiera
** †Baiera braun
** †Baiera virginiana
* †Barbclabornia
** †Barbclabornia luedersensis
* †Barinophyton
** †Barinophyton sibiricum
* †Bassipterus
** †Bassipterus virginicus
* †Beyrichia
** †Beyrichia moodeyi
* Fossilized skeleton found in Mercer County; the holotype of the Carboniferous bony fish Bluefieldius. Close-up view of the skull at right. †Bluefieldius
** †Bluefieldius mercerensis
* †Bollia
** †Bollia hama
** †Bollia hindei
** †Bollia nitida
** †Bollia planofibra
** †Bollia ungula
* †Bothrodendron
** †Bothrodendron minutifolium – or unidentified comparable form
* †Bradyblatta
** †Bradyblatta mucronata – type locality for species
** †Bradyblatta sagittaria – type locality for species
* †Buthotrephis
** †Buthotrephis gracilis
* Bythocypris
** †Bythocypris keyserensis
** †Bythocypris phaseolina

## C

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* Fossilized stems from the Carboniferous-Permian horsetail relative Calamites †Calamites
** †Calamites approximatus
** †Calamites cannaeformis
** †Calamites cistii
** †Calamites radiatus
** †Calamites ramosus
** †Calamites roemeri
** †Calamites suckowi
** †Calamites suckowii
* †Calamostachys
** †Calamostachys lanceolata
** †Calamostachys ramosus
* Fossilized fronds of the Carboniferous seed fern Callipteridium †Callipteridium
** †Callipteridium dawsonianum
** †Callipteridium grandifolium
** †Callipteridium inaequale
** †Callipteridium oblongifolium
** †Callipteridium odontopteroides
** †Callipteridium unitum
* †Callipteris
** †Callipteris conferta
** †Callipteris diabolica
* †Callixylon
** †Callixylon erianum
* †Calymene
** †Calymene camerata
** †Calymene cresapensis
** Fossils in enrolled posture of the Silurian trilobite Calymene niagarensis †Calymene niagarensis
* †Camarotoechia
** †Camarotoechia andrewsi
** †Camarotoechia limitare
** †Camarotoechia litchfieldensis
** †Camarotoechia tonolowayensis
* †Caneyella
** †Caneyella richardsoni
* †Cardiocarpon
** †Cardiocarpon bicuspidatum
** †Cardiocarpon cornutum
** †Cardiocarpon elongatum
** †Cardiocarpon minor
* †Cardiocarpus
* †Cardiomorpha
** †Cardiomorpha obovata
* †Cardiopteris
** †Cardiopteris frondosa
* †Carniodus
** †Carniodus carnulus
* †Carpolithes
** †Carpolithes bi-carpus
** †Carpolithes ellipticus
** †Carpolithes fragarioides – tentative report
** †Carpolithes marginatus
** †Carpolithes virginianus – type locality for species
* †Caulopteris
** †Caulopteris elliptica
** †Caulopteris gigantea
* †Cavellina
** †Cavellina planoprocliva
* †Charbeckia
** †Charbeckia macrophylla
* †Cheilanthites
** †Cheilanthites nummularius – or unidentified comparable form.
** †Cheilanthites obtusilobus
*** †Cheilanthites obtusilobus var. dilatata
** †Cheilanthites solidus
** †Cheilanthites squamosus
** †Cheilanthites trifoliatus
* †Chonetes
** †Chonetes novascoticus
* †Clidochirus
* †Coelospira
** †Coelospira sulcata
* †Condrusia
* †Cordaicarpon
** †Cordaicarpon circularis
** †Cordaicarpon cinctum
** †Cordaicarpon gutbieri
* †Cordaites
** †Cordaites borassifolius
** †Cordaites crassinervis
** †Cordaites principalis
** †Cordaites robbii
* †Cornulites
* †Courvoisiella
** †Courvoisiella ctenomorpha
* Life restoration of the Carboniferous four-limbed animal precursor Crassigyrinus †Crassigyrinus
* †Crossoceras
** †Crossoceras belandi
* †Crurispina
** †Crurispina nana
* †Cupularostrum
** †Cupularostrum contracta
* †Cyclopteris
** †Cyclopteris valida – probably the same as Triphyllopteris virginiana
* †Cyperites
** †Cyperites bicarinatus
* †Cypricardella

## D

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* †Dalmanella
** †Dalmanella lenticularis
* Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites †Dalmanites
** †Dalmanites limulurus
* †Danaeides
** †Danaeides emersoni
* †Delthyris
* †Deltopecten
** †Deltopecten caneyanus – or unidentified comparable form
* †Devonochonetes
** †Devonochonetes coronatus
** †Devonochonetes scitulus
* †Dibolbina
** †Dibolbina cristata
* †Dichophyllum
** †Dichophyllum moorei
* †Dicladoblatta
** †Dicladoblatta defossa – type locality for species
* †Diedrorynchus – type locality for genus
** †Diedrorynchus dictyum – type locality for species
* Life restoration of a swimming group of the Permian amphibian Diploceraspis †Diploceraspis
** †Diploceraspis burkei
* †Diplothema
** †Diplothema pachyderma
* †Distomodus
** †Distomodus nodosus – type locality for species
* †Ditomopyge
** †Ditomopyge decurtata
* †Dizygopleura
** †Dizygopleura costata
** †Dizygopleura halli
** †Dizygopleura orealis
** †Dizygopleura simulans
** †Dizygopleura subovalis
* †Dolerotheca
** †Dolerotheca pennsylvanica
* †Donaldina
** †Donaldina superclivis – type locality for species
* †Douvillina
** †Douvillina inequistriata
* †Drepanellina
** †Drepanellina clarki
* Fossil of the Silurian-Late Devonian eurypterid ("sea scorpion") Drepanopterus †Drepanopterus
** †Drepanopterus nodosus

## E

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* †Ectogrammysia
** †Ectogrammysia inaffecta – type locality for species
** †Ectogrammysia prolata – type locality for species
* Life restoration of the Permian synapsid (mammal precursor) Edaphosaurus †Edaphosaurus
** †Edaphosaurus colohistion – type locality for species
* †Edmondia
** †Edmondia equilateralis
** †Edmondia equilateralus
** †Edmondia suborbiculata
* †Elkinsia
** †Elkinsia polymorpha
* †Endelocrinus
** †Endelocrinus kieri
* †Equisetides
** †Equisetides rugosus
** †Equisetides schimper
** †Equisetides striatus
* †Equisetites
** †Equisetites elongatus
** †Equisetites occidentalis
** †Equisetites rugosus
** †Equisetites striatus
* †Eremopteris
** †Eremopteris artemisiaefolia
** †Eremopteris cheathami
** †Eremopteris decomposita – or unidentified comparable form
** †Eremopteris elegans – or unidentified comparable form
** †Eremopteris lincolniana – or unidentified comparable form
** †Eremopteris macilenta
** †Eremopteris microphylla
** †Eremopteris sauvieri – or unidentified comparable form
* †Etoblattina
** †Etoblattina aperta – type locality for species
** †Etoblattina exigua – type locality for species
* †Eucalyptocrinites
* †Eukloedenella
** †Eukloedenella umbiculata
* Life restoration of Silurian eurypterid ("sea scorpion") Eurypterus †Eurypterus
* †Eurytaenia – type locality for genus
** †Eurytaenia virginiana – type locality for species
* †Eviostachya – or unidentified comparable form

## F

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* Fossil of the Late Ordovician-Permian tabulate coral Favosites †Favosites
** †Favosites helderbergiae
* †Floweria
** †Floweria chemungensis

## G

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* †Gerablattina
** †Gerablattina eversa – type locality for species
** †Gerablattina inculta – type locality for species
** †Gerablattina perita – type locality for species
* †Gillespia
** †Gillespia randolphensis
* Life restoration of the Carboniferous four-limbed animal precursor Greererpeton †Greererpeton
** †Greererpeton burkemorani
* †Guilielmites
** †Guilielmites geinitz
** †Guilielmites orbicularis
* †Gypidula
** †Gypidula coeymanensis
* †Gyracanthus

## H

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* †Halliella
** †Halliella fissurella
** †Halliella subequata
* †Halonia
* †Hapalocrinus
* †Hierogramma
* †Hindella
** †Hindella congregata
* †Holcospermum
** †Holcospermum maizerentense
* †Holopea
** †Holopea flintstonensis
* †Homeospira
** †Homeospira evax
* †Hormotoma
** †Hormotoma rowei
* Life restoration in multiple views of the Silurian eurypterid ("sea scorpion") Hughmilleria †Hughmilleria
** †Hughmilleria bellistriata
* †Hylopus
** †Hylopus hamesi
* †Hyphantozyga
** †Hyphantozyga fenestrata – type locality for species

## J

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* †Jaeckelocystis

## K

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* †Kloedenella
** †Kloedenella bisulcata
* †Kloedenia
** †Kloedenia clarkei
** †Kloedenia normalis

## L

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* †Leperditia
** †Leperditia alta
** †Leperditia elongata – or unidentified comparable form
** †Leperditia scalaris
* †Lepidocystis
** †Lepidocystis vesicularis
* Restoration of the Carboniferous-Late Triassic club moss relative Lepidodendron. Eli Heimans (1911). †Lepidodendron
** †Lepidodendron aculeatum
** †Lepidodendron acuminatum
** †Lepidodendron brittsii – or unidentified comparable form
** †Lepidodendron clypeatum
** †Lepidodendron dichotomum – or unidentified comparable form
** †Lepidodendron lanceolatum
** †Lepidodendron magnum – or unidentified comparable form
** †Lepidodendron modulatum
** †Lepidodendron obovatum
** †Lepidodendron rushvillense
** †Lepidodendron selaginoides
** †Lepidodendron sternbergii
** †Lepidodendron veltheimianum
* †Lepidodendropsis
** †Lepidodendropsis scobiniformis
* †Lepidophloios
** †Lepidophloios laricinus – or unidentified comparable form
* †Lepidophyllum
** †Lepidophyllum acuminatum
** †Lepidophyllum brevifolium
** †Lepidophyllum campbellianum
** †Lepidophyllum cultriforme – or unidentified comparable form
** †Lepidophyllum hastatum
** †Lepidophyllum jenneyi
** †Lepidophyllum lanceolatum
** †Lepidophyllum oblongifolium
* †Lepidostrobophyllum
* †Lepidostrobus
** †Lepidostrobus ornatus
** †Lepidostrobus salisburyi
** †Lepidostrobus variabilis
* †Lepocrinites
** †Lepocrinites gebhardi
* †Leptaena
** †Leptaena rhomboidalis – report made of unidentified related form or using admittedly obsolete nomenclature
* †Leptodesma
** †Leptodesma matheri
** †Leptodesma occidentale – or unidentified related form
** †Leptodesma pennsylvanica
** †Leptodesma spinerigum
* †Leptostrophia
** †Leptostrophia bipartita
** †Leptostrophia proutyi
* †Lescuropteris
** †Lescuropteris adiantites
** †Lescuropteris moorii
* †Levizygopleura
** †Levizygopleura inornata
* †Limipecten
** †Limipecten greerensis – type locality for species
* †Limnopus
** †Limnopus glenshawensis
* †Limnosceloides – type locality for genus
** †Limnosceloides dunkardensis – type locality for species
* Shell of the Cambrian-modern brachiopod Lingula †Lingula
* †Linopteris
** †Linopteris neuropteroides
** †Linopteris obliqua
* †Liocalymene
** †Liocalymene clintoni
* †Liparoblatta
** †Liparoblatta ovata – type locality for species
** †Liparoblatta radiata – type locality for species
* †Lithostrotion
** †Lithostrotion angustum
* †Lycopodites
** †Lycopodites meekii
** †Lycopodites pendulus
** †Lycopodites simplex
* Fossil in cross section of the Carboniferous seed fern stem Lyginopteris †Lyginopteris
** †Lyginopteris bermudensiformis
** †Lyginopteris fragilis
** †Lyginopteris hoeninghausi
** †Lyginopteris hoeninghausii

## M

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* †Macrostachya
* †Mariacrinus – report made of unidentified related form or using admittedly obsolete nomenclature
** †Mariacrinus stoloniferus
* †Mariopteris
** †Mariopteris andraena
** †Mariopteris acuta
** †Mariopteris dimorpha – or unidentified comparable form
** †Mariopteris inflata
** †Mariopteris latifolia
** †Mariopteris muricata
** †Mariopteris nervosa
** †Mariopteris newberryi
** †Mariopteris pottsvillea
** †Mariopteris pygmaea
** †Mariopteris sillimanni
** †Mariopteris sphenopteroides
** †Mariopteris spinulosa – tentative report
* †Mediospirifer
** †Mediospirifer audaculus
* †Megakozlowskiella
** †Megakozlowskiella sculptilis
* †Megalichthyes – or unidentified comparable form
* †Megalopteris
** †Megalopteris dawsoni – or unidentified comparable form
** †Megalopteris hartii
** †Megalopteris sewellensis
* †Metapoblatta – type locality for genus
** †Metapoblatta microptera – type locality for species
* †Microsphaeridiorhynchus
** †Microsphaeridiorhynchus litchfieldensis
* †Modiolopsis
** †Modiolopsis gregarius
* †Modiolus
** †Modiolus waverliensis – or unidentified comparable form
* Fossilized shell of the Devonian brachiopod Mucrospirifer †Mucrospirifer
** †Mucrospirifer mucronatus
* †Murchisonia
** †Murchisonia minuta
* †Myelodactylus
** †Myelodactylus keyserensis
* †Mylacris – type locality for genus
** †Mylacris virginiana – type locality for species

## N

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* †Naiadites
* †Naticonema
* †Nematophyllum
** †Nematophyllum angustum
* †Nervostrophia
** †Nervostrophia nervosa
* †Neuralethopteris
** †Neuralethopteris pocahontas
** †Neuralethopteris smithsii
* Fronds of the Carboniferous seed fern Neuropteris †Neuropteris
** †Neuropteris agassizi
** †Neuropteris auriculata
** †Neuropteris biformis
** †Neuropteris callosa
** †Neuropteris carrii – or unidentified comparable form
** †Neuropteris cistii
** †Neuropteris cordata
** †Neuropteris crenulata
** †Neuropteris dictyopteroides
** †Neuropteris elrodi
** †Neuropteris fimbriata
** †Neuropteris flexuosa
** †Neuropteris gigantea
** †Neuropteris grangeri
** †Neuropteris heterophylla
** †Neuropteris lindleyana
** †Neuropteris loschii
** †Neuropteris odontopteroides
** †Neuropteris ovata
** †Neuropteris planchardi
*** †Neuropteris planchardi var. longifolia
** †Neuropteris plicata
** †Neuropteris pocahontas
** †Neuropteris rarinervis
** †Neuropteris scheuchzeri
** †Neuropteris schlehani
** †Neuropteris smithii
** †Neuropteris sternberg
** †Neuropteris tenuifolia
** †Neuropteris vermicularis
** †Neuropteris zeilleri – or unidentified comparable form
* †Nuculavus
** †Nuculavus okawensis
* †Nuculopsis
** †Nuculopsis rectangula

## O

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* †Octonaria
** †Octonaria muricata
* †Odontopteris
** †Odontopteris aequalis
** †Odontopteris densifolia
** †Odontopteris gracillima
** †Odontopteris neuropteroides
** †Odontopteris nervosa
** †Odontopteris newberryi
** †Odontopteris obtusiloba
*** †Odontopteris obtusiloba var. rarinervis
** †Odontopteris subcuneata
** †Odontopteris wortheni
* †Oligocarpia
** †Oligocarpia alabamensis
* Life restoration of the Middle-Late Devonian lobe-finned fish Onychodus †Onychodus
* †Orthacanthus – or unidentified comparable form
* †Orthoceras – report made of unidentified related form or using admittedly obsolete nomenclature
* †Orthogonophora – type locality for genus
** †Orthogonophora distincta – type locality for species
* †Orthomylacris
** †Orthomylacris franklini – type locality for species
* †Orthonychia
** †Orthonychia tortuosa
* †Oxynoblatta
** †Oxynoblatta alutacea – type locality for species

## P

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* Z
* †Palaeodictyopteron – report made of unidentified related form or using admittedly obsolete nomenclature
** †Palaeodictyopteron virginianum – type locality for species
* †Palaeolima
* †Palaeoneilo
** †Palaeoneilo sera
* †Palaeostylus
** †Palaeostylus venustus
* †Palaeoxyris
** †Palaeoxyris appendiculata
* †Paleyoldia
** †Paleyoldia levistriata
* †Paracyclas
** †Paracyclas lirata
* †Paraechmina
** †Paraechmina dubia
* †Parahughmilleria
** †Parahughmilleria bellistriata
* †Parallelodon
** †Parallelodon mimina
** †Parallelodon minima – or unidentified comparable form
* †Pareinoblatta
** †Pareinoblatta expuncta – type locality for species
* Fossils of the Late Devonian-Permian fern-like fronds Pecopteris †Pecopteris
** †Pecopteris angustipinna
** †Pecopteris arborescens
*** †Pecopteris arborescens var. integripinna
** †Pecopteris arguta
** †Pecopteris aspera
** †Pecopteris asplenioides
** †Pecopteris candolleana
** †Pecopteris dawsoniana
** †Pecopteris dentata
*** †Pecopteris dentata var. crenata
*** †Pecopteris dentata var. parva
** †Pecopteris elegans
** †Pecopteris elliptica
** †Pecopteris emarginata
** †Pecopteris feminaeformis
** †Pecopteris germari
*** †Pecopteris germari var. crassinervis
*** †Pecopteris germari var. cuspidata
** †Pecopteris goniopteroides
** †Pecopteris grandifolia
** †Pecopteris hemitelioides
** †Pecopteris hemiteloides
** †Pecopteris heeriana
** †Pecopteris imbricata
** †Pecopteris inclinata
** †Pecopteris integra – or unidentified comparable form
** †Pecopteris jenneyi – or unidentified comparable form
** †Pecopteris lanceolata
** †Pecopteris latifolia
** †Pecopteris longifolia
** †Pecopteris merianiopteroides
** †Pecopteris microphylla
** †Pecopteris miltoni
** †Pecopteris newberryana
** †Pecopteris nodosa
** †Pecopteris notata
** †Pecopteris oblonga
** †Pecopteris oblongifolia
** †Pecopteris odontopteroides
** †Pecopteris oreopteridia
** †Pecopteris ovoides
** †Pecopteris pachypteroides
** †Pecopteris pennaeformis
*** †Pecopteris pennaeformis var. latifolia
** †Pecopteris platynervis
** †Pecopteris pluckeneti
*** †Pecopteris pluckeneti var. constricta
** †Pecopteris plumosa
** †Pecopteris polymorpha
** †Pecopteris pteroides
** †Pecopteris rarinervis
** †Pecopteris rotundifolia
** †Pecopteris rotundiloba
** †Pecopteris schimperiana
** †Pecopteris serrulata – tentative report
** †Pecopteris sub-falcata
** †Pecopteris tenuinervis
** †Pecopteris unita
** †Pecopteris vestita
** †Pecopteris villosa
* †Penetoblatta
** †Penetoblatta rotundata – type locality for species
** †Penetoblatta virginiensis – type locality for species
* †Periechocrinus
* †Permophorus
** †Permophorus octocostatus
* Fossilized tooth of the Carboniferous-Permian shark Petalodus †Petalodus
* †Petrablattina
** †Petrablattina ovata – type locality for species
* †Phacops
** †Phacops cristata
* †Phestia
** †Phestia pandoraeformis
** †Phestia rugodorsata
* †Phyloblatta
** †Phyloblatta abbreviata – type locality for species
** †Phyloblatta abdicata – type locality for species
** †Phyloblatta accubita – type locality for species
** †Phyloblatta angusta – type locality for species
** †Phyloblatta arcuata – type locality for species
** †Phyloblatta cassvilleana – type locality for species
** †Phyloblatta communis – type locality for species
** †Phyloblatta concinna – type locality for species
** †Phyloblatta debilis – type locality for species
** †Phyloblatta deducta – type locality for species
** †Phyloblatta dichotoma – type locality for species
** †Phyloblatta dimidiata – type locality for species
** †Phyloblatta elatior – type locality for species
** †Phyloblatta expugnata – type locality for species
** †Phyloblatta expulsata – type locality for species
** †Phyloblatta exsecuta – type locality for species
** †Phyloblatta fracta – type locality for species
** †Phyloblatta funeraria – type locality for species
** †Phyloblatta gratiosa – type locality for species
** †Phyloblatta immolata – type locality for species
** †Phyloblatta imperfecta – type locality for species
** †Phyloblatta lata – type locality for species
** †Phyloblatta macerata – type locality for species
** †Phyloblatta macilenta – type locality for species
** †Phyloblatta macroptera – type locality for species
** †Phyloblatta mactata – type locality for species
** †Phyloblatta mortua – type locality for species
** †Phyloblatta obatra – type locality for species
** †Phyloblatta praedulcis – type locality for species
** †Phyloblatta rebaptizata – type locality for species
** †Phyloblatta regularis – type locality for species
** †Phyloblatta residua – type locality for species
** †Phyloblatta rogi – type locality for species
** †Phyloblatta scudderiana – type locality for species
** †Phyloblatta secreta – type locality for species
** †Phyloblatta uniformis – type locality for species
** †Phyloblatta virginiana – type locality for species
** †Phyloblatta vulgata – type locality for species
* †Physonemus
* †Pinna
** †Pinna missouriensis
* Fossilized shell of the Silurian-Early Triassic sea snail Platyceras †Platyceras
** †Platyceras gebharti
** †Platyceras magnificum
* †Plocezyga
** †Plocezyga acuminata
** †Plocezyga obscura – type locality for species
** †Plocezyga subquadrata – type locality for species
** †Plocezyga turbinata
* †Poacordaites
* †Polidevcia
** †Polidevcia stevensiana
* †Polyetoblatta – type locality for genus
** †Polyetoblatta calopteryx – type locality for species
* †Ponderodictya
** †Ponderodictya favulosa
* †Poroblattina
** †Poroblattina gratiosa – type locality for species
** †Poroblattina parvula – type locality for species
* †Productella
** †Productella rectispina
* †Promytilus
** †Promytilus illinoisensis
* †Protathyris
** †Protathyris congregata
* †Protaxocrinus
* †Proterogyrinus
** †Proterogyrinus scheelei
* †Prothyris
** †Prothyris acuticarinata – type locality for species
* †Protoleptostrophia
** †Protoleptostrophia perplana
* Life restoration of the Permian reptile Protorothyris †Protorothyris – type locality for genus
** †Protorothyris morani – type locality for species
* †Pseudocrinites
* †Pseudozygopleura
** †Pseudozygopleura multicostata – or unidentified comparable form
** †Pseudozygopleura pandus
** †Pseudozygopleura schucherti – or unidentified comparable form
** †Pseudozygopleura scitula
** †Pseudozygopleura tenuivirga
* †Pterinea
** †Pterinea emacerata – or unidentified comparable form
** †Pterinea flintstonensis
* †Ptychopteria
** †Ptychopteria pusilla – type locality for species
* †Pustulatia
** †Pustulatia pustulosa
* †Pycnosaccus

## R

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* †Rafinesquina
* †Resserella
** †Resserella elegantula
* †Rhabdocarpos
** †Rhabdocarpos amygdalaeformis
** †Rhabdocarpos bockschianus
** †Rhabdocarpos multistriatus
** †Rhabdocarpos oblongatus
** †Rhabdocarpos sulcatus
** †Rhabdocarpos tenax
* †Rhacophyton
** †Rhacophyton ceratangium
* †Rhipidomella
** †Rhipidomella hybrida
** †Rhipidomella leucosia – or unidentified comparable form
** †Rhipidomella penelope – or unidentified comparable form
** †Rhipidomella vanuxemi
* Shell of a Rhodea land snail †Rhodea
** †Rhodea vepertina – type locality for species
* †Rhynchospirina
** †Rhynchospirina globosa
* †Rodea (genus)
** †Rodea vespertina – type locality for species

## S

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* †Sagenodus – or unidentified comparable form
* †Sanguinolites
** †Sanguinolites naiadiformis – or unidentified comparable form
** †Sanguinolites obliquus – or unidentified comparable form
** †Sanguinolites unioniformis – or unidentified comparable form
* †Saportaea
** †Saportaea grandifolia
** †Saportaea salisburioides
* †Schellwienella
** †Schellwienella elegans
** †Schellwienella interstriata
** †Schellwienella rugosa
* †Schizodus
** †Schizodus chesterensis – or unidentified related form
** †Schizodus depressus
* †Schizophoria
** †Schizophoria impressa
* †Schuchertella
** †Schuchertella deckerensis
** †Schuchertella variabilis
* †Scudderula
** †Scudderula arcta – type locality for species
* †Scyphocrinites
* †Sedgwickia – tentative report
* †Septimyalina
* †Shenophyllum
** †Shenophyllum cunefolium
** †Shenophyllum tenerrimum
* †Shenopteris
** †Shenopteris elegans
** †Shenopteris launoitii
* Fossilized stump of the Carboniferous-Permian club moss relative Sigillaria †Sigillaria
** †Sigillaria approximata
** †Sigillaria brardii
** †Sigillaria camptotaenia
** †Sigillaria dentata – or unidentified comparable form
** †Sigillaria fissa
** †Sigillaria ichthyolepis – or unidentified comparable form
** †Sigillaria reticulata – or unidentified comparable form
** †Sigillaria menardi
* †Solenomorpha
** †Solenomorpha nitida
* †Sphaerocystites
* †Sphaerotocrinus
* Fossilized leaves and branches of the Devonian-Triassic horsetail relative Sphenophyllum †Sphenophyllum
** †Sphenophyllum angustifolium
** †Sphenophyllum antiquum
** †Sphenophyllum cornutum
** †Sphenophyllum cuneifolium
** †Sphenophyllum densifolium
** †Sphenophyllum emarginatum
** †Sphenophyllum filiculme
** †Sphenophyllum fontaineaum
** †Sphenophyllum furcatum
** †Sphenophyllum lescurianum
** †Sphenophyllum longifolium
** †Sphenophyllum majus
** †Sphenophyllum oblongifolia
** †Sphenophyllum oblongifolium
** †Sphenophyllum subtenerrimmum
** †Sphenophyllum tenue
** †Sphenophyllum tenuifolium
* †Sphenopteridium
** †Sphenopteridium bifidum
** †Sphenopteridium brooksi – type locality for species
** †Sphenopteridium girtiyi – type locality for species
** †Sphenopteridium virginianum
* Fossilized foliage of the Late-Devonian-Cretaceous seed fern Sphenopteris †Sphenopteris
** †Sphenopteris acrocarpa
** †Sphenopteris auriculata
** †Sphenopteris breviloba
** †Sphenopteris broadheadi – or unidentified comparable form
** †Sphenopteris canneltonensis – or unidentified comparable form
** †Sphenopteris chaerophylloides
** †Sphenopteris communis
** †Sphenopteris deliculata
** †Sphenopteris dentata
** †Sphenopteris dicksonioides
** †Sphenopteris distans
** †Sphenopteris divaricata
** †Sphenopteris dubuissonis – or unidentified comparable form
** †Sphenopteris elegans
** †Sphenopteris flexicaulis
** †Sphenopteris foliosa
** †Sphenopteris formosa
** †Sphenopteris furcata
** †Sphenopteris goepperti – or unidentified comparable form
** †Sphenopteris hastata
** †Sphenopteris hymenophylloides
** †Sphenopteris hoeninghausii
** †Sphenopteris karwinensis
** †Sphenopteris larischii – or unidentified comparable form
** †Sphenopteris lescuriana
** †Sphenopteris linearis – or unidentified comparable form
** †Sphenopteris linkii
** †Sphenopteris lobata
** †Sphenopteris microcarpa
** †Sphenopteris minuti-secta
** †Sphenopteris mixta
** †Sphenopteris obtusiloba
** †Sphenopteris ophioglossoides
** †Sphenopteris pachynervis
** †Sphenopteris patentissima
** †Sphenopteris pinnatifida
** †Sphenopteris rarinervis
** †Sphenopteris royi – or unidentified comparable form
** †Sphenopteris schatzlarensis
** †Sphenopteris spinosa
** †Sphenopteris stipulata – or unidentified comparable form
** †Sphenopteris subgeniculata
** †Sphenopteris tenella
** †Sphenopteris tracyana
** †Sphenopteris trichomanoides – or unidentified comparable form
* †Sphenotus
** †Sphenotus aeolus – tentative report
** †Sphenotus monroensis
** †Sphenotus pisinnus – tentative report
** †Sphenotus washingtonensis – or unidentified comparable form
* †Spinatrypa
** †Spinatrypa hystrix
* †Spinocyrtia
** †Spinocyrtia granulosa
* Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer †Spirifer – report made of unidentified related form or using admittedly obsolete nomenclature
** †Spirifer corallinensis
** †Spirifer keyserensis
** †Spirifer mackenzicus
** †Spirifer vanuxemi
* †Stegerhynchus
** †Stegerhynchus neglectum
* †Stenochisma
** †Stenochisma lamellata
* Fossil of the Carboniferous-Permian tree-like club moss relative rhizome Stigmaria †Stigmaria
** †Stigmaria ficoides
** †Stigmaria stellata
* †Streblochondria
** †Streblochondria girtyi
** †Streblochondria mutata – type locality for species
** †Streblochondria tiltoni – type locality for species
* †Streblopteria
** †Streblopteria girtyi – type locality for species
* †Stromatopora
** †Stromatopora constellata
* †Symphyoblatta
** †Symphyoblatta debilis – type locality for species
* †Synchirocrinus
** †Synchirocrinus keyserensis
* †Sysciophlebia
** †Sysciophlebia balteata – type locality for species
** †Sysciophlebia invisa – type locality for species
** †Sysciophlebia patiens – type locality for species
** †Sysciophlebia recidiva – type locality for species

## T

* A
* B
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* F
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* H
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* †Taeniopteris
** †Taeniopteris lescuriana
** †Taeniopteris newberriana
*** †Taeniopteris newberriana var. angusta
* †Tanypterichthys – type locality for genus
** †Tanypterichthys pridensis – type locality for species
* Fossilized shell of the Early Ordovician-Late Devonian probable mollusc Tentaculites †Tentaculites
** †Tentaculites gyracanthus
** †Tentaculites minutus
* †Tetracystis
* †Tetrameroceras
** †Tetrameroceras cumberlandicum
* †Thlipsura
** †Thlipsura ultimata
* †Thlipsurella
** †Thlipsurella semipunctata
* †Tradonis
** †Tradonis castrensis
* †Trigonocarpum
** †Trigonocarpum ampullaeforme
** †Trigonocarpum clavatum
** †Trigonocarpum noeggerathii
** †Trigonocarpum oliviaeforme
** †Trigonocarpum trioculare
* †Trigonocarpus
* †Triletes
* †Trimerus
** †Trimerus delphinocephalus
* †Triphyllopteris
** †Triphyllopteris latilobata – type locality for species
** †Triphyllopteris rarinervis – type locality for species
* †Tropidoleptus
** †Tropidoleptus carinatus
* †Truncatiramus – now regarded as a jr. synonym of Erettopterus
** †Truncatiramus exopthalmus
* †Tylothyris
** †Tylothyris mesacostalis

## U

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* †Ulodendron
** †Ulodendron majus
* †Uncinulus
** †Uncinulus convexorus
** †Uncinulus marylandicus
** †Uncinulus obtusiplicatus
* †Unicinulus
** †Unicinulus marylandicus
* †Unklesbayella
** †Unklesbayella geinitzi

## W

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* Fossilized head of the Silurian eurypterid ("sea scorpion") Waeringopterus †Waeringopterus
** †Waeringopterus cumberlandicus
* †Wardia
** †Wardia fertilis – Later reclassified as †Aneimites fertilis
* †Welleria
** †Welleria obliqua
* †Whitfieldella
** †Whitfieldella marylandica
* †Whittleseya
** †Whittleseya elegans
* †Wilkingia
** †Wilkingia andrewsi
** †Wilkingia neglecta – or unidentified related form
** †Wilkingia walkeri
* †Wurmiella
** †Wurmiella excavata

## X

* A
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* †Xenotheca

## Z

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* Z
* Life restoration of the Permian amphibian Zatrachys †Zatrachys
** †Zatrachys serratus
* †Zygobeyrichia
** †Zygobeyrichia incipiens
** †Zygobeyrichia tonolowayensis
** †Zygobeyrichia ventricornis
** †Zygobeyrichia ventripunctata
** †Zygobeyrichia virginia
* †Zygosella
** †Zygosella vallata