List of the Paleozoic life of Maryland

Last updated May 03, 2022

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

A

† Acanthopecten – tentative report
- † Acanthopecten armigerus
- † Acanthopecten carboniferus
† Acanthotriletes
- † Acanthotriletes pullus
† Acoblatta – type locality for genus
- † Acoblatta argillacea – type locality for species
† Actinopteria
- † Actinopteria boydi
- † Actinopteria boydii
- † Actinopteria decussata
† Aglaoglypta
- † Aglaoglypta maera
† Ambloblatta – type locality for genus
- † Ambloblatta bassleri – type locality for species
† Ambocoelia
- † Ambocoelia umbonata
† Ambonychia
† Amphiscapha
- † Amphiscapha catilloides
Fossils of the Ordovician-Permian bryozoan Amplexopora
† Amplexopora
† Anapiculatisporites
- † Anapiculatisporites crassisetus – type locality for species
† Anazyga
- † Anazyga recurvirostra – tentative report
† Ancyrospora
- † Ancyrospora ancyrea
† Aneurospora
- † Aneurospora semizonalis
† Anoplotheca
† Anthraconeilo
- † Anthraconeilo taffiana
† Aparchites
- † Aparchites punctillosa
† Archaeoscyphia
† Archaeotriletes
- † Archaeotriletes aduncus
† Archaeozonotriletes
- † Archaeozonotriletes notatus
† Archimylacris
- † Archimylacris delicata – type locality for species
† Arthroacantha
- † Arthroacantha punctobrachiata – or unidentified comparable form
† Astartella
- † Astartella concentrica
- † Astartella vera
† Atlanticocoelia
† Atrypa
- Fossilized shell of the Silurian-Late Devonian brachiopod Atrypa reticularis
  † Atrypa reticularis – report made of unidentified related form or using admittedly obsolete nomenclature
† Aviculopecten

B

† Bactrites
Bairdia
† Bassipterus
- † Bassipterus virginicus
† Batostomella
† Bellefontia
- † Bellefontia collieana – tentative report
Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon
† Bellerophon
- † Bellerophon clarki
† Beyrichia
- † Beyrichia moodeyi
- † Beyrichia veronica
† Biharisporites
- † Biharisporites maguashensis
† Bolbiprimitia
† Bollia
- † Bollia immersa
- † Bollia nitida
- † Bollia pulchella
† Bonnemaia
- † Bonnemaia celsa
- † Bonnemaia perlonga
† Brachymylacris
- † Brachymylacris martini – type locality for species
† Brochotriletes
† Bucania – tentative report
† Buthotrephis
- † Buthotrephis gracilis
† Buthrotrephis
† Byssonychia
- † Byssonychia radiata
Bythocypris
- † Bythocypris obesa
- † Bythocypris pergracilis

C

† Calamospora
- † Calamospora atava
- † Calamospora nigrata
† Calymene
- † Calymene camerata
- † Calymene cresapensis
- Fossils in enrolled posture of the Silurian trilobite Calymene niagarensis
  † Calymene niagarensis – or unidentified comparable form
- † Calymene niagraensis
† Camarotoechia
- † Camarotoechia andrewsi
- † Camarotoechia litchfieldensis
- † Camarotoechia tonolowayensis
† Cariniferella
- † Cariniferella carinata
† Cavellina
† Ceratopea
† Cheliphlebia – tentative report
- † Cheliphlebia argillacea – type locality for species
† Chonetes
- † Chonetes novascoticus
† Chonetina
- † Chonetina verneuilianus
† Chonostrophia
Assemblage of fossilized shells of the Ordovician brachiopod Cincinnetina
† Cincinnetina
- † Cincinnetina multisecta
† Clidophorus
- † Clidophorus nitidus
† Clitendoceras
† Coelospira
- † Coelospira nitens
- † Coelospira sulcata
† Composita
- † Composita ovata – tentative report
† Conularia
- † Conularia niagarensis
† Convolutispora
- † Convolutispora subtilis
† Coreanoceras
Fossil of the Middle Ordovician-Carboniferous horn coral Cornulites
† Cornulites
- † Cornulites concavus
- † Cornulites rosehillensis
† Corvellites
† Crurithyris
- † Crurithyris planoconvexa
† Cryptolithus
† Ctenodonta
- † Ctenodonta subreniformis
† Culunana
- † Culunana attenuata
† Cupularostrum
- † Cupularostrum contracta
† Cyathophyllum
† Cymatospira
- † Cymatospira montfortianus
† Cyphomylacris – type locality for genus
- † Cyphomylacris atrata – type locality for species
† Cyphotrypa
† Cypricardella
- † Cypricardella crassa
- † Cypricardella cumberlandiae
- † Cypricardella gregaria
- † Cypricardella nitidula
- † Cypricardella tenuistriata
† Cypricardinia
- † Cypricardinia elegans
† Cyrtina
† Cyrtodontula
- † Cyrtodontula subtruncata

D

† Dakeoceras
Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites
† Dalmanites
- † Dalmanites limulurus
† Dekayia
† Delthyris
- † Delthyris vanuxemi
† Derbyia
- † Derbyia crassa
† Diaphanospora
- † Diaphanospora reticulatus
† Diaphelasma
† Dibolbina
- † Dibolbina cristata
† Dictyotriletes
† Dinoblatta – type locality for genus
- † Dinoblatta cubitalis – type locality for species
- † Dinoblatta fortis – type locality for species
† Diparelasma
† Dizygopleura
- † Dizygopleura acuminata
- † Dizygopleura carinata
- † Dizygopleura conjugata
- † Dizygopleura costata
- † Dizygopleura gibba
- † Dizygopleura halli
- † Dizygopleura intermedia
- † Dizygopleura micula
- † Dizygopleura perrugosa
- † Dizygopleura pricei
- † Dizygopleura proutyi
- † Dizygopleura simulans
- † Dizygopleura subdivisa
- † Dizygopleura subovalis
- † Dizygopleura swartzi
- † Dizygopleura symmetrica
Life restoration of the Silurian eurypterid ("sea scorpion") Dolichopterus
† Dolichopterus
† Doloresella
† Donaldina
- † Donaldina stevensana
† Drepanellina
- † Drepanellina clarki
- † Drepanellina ventralis
† Dunbarella
- † Dunbarella striata – type locality for species

E

† Ecculiomphalus
† Edmondia
- † Edmondia aspenwallensis
- † Edmondia pseudoreflexa – type locality for species
† Eldredgeops
- † Eldredgeops rana
† Elita
† Ellesmeroceras
† Emphanisporites
- † Emphanisporites annulatus
- † Emphanisporites rotatus
† Encrinurus
- † Encrinurus ornatus
† Endocycloceras
- † Endocycloceras legorense
† Eospirifer
- † Eospirifer crispus
Life restoration of the Silurian-Early Devonian eurypterid ("sea scorpion") Erettopterus
† Erettopterus – tentative report
† Escharendoceras
† Euchondria
- † Euchondria levicula – tentative report
† Eukloedenella
- † Eukloedenella elongata
- † Eukloedenella punctillosa
- † Eukloedenella sinuata
- † Eukloedenella sulcifrons
- † Eukloedenella umbilicata
† Euomphalus
† Euphemites
- † Euphemites vittatus
Life restoration of Silurian eurypterid ("sea scorpion") Eurypterus
† Eurypterus
- † Eurypterus remipes
† Euthydesma

F

Fossil of the Late Ordovician-Permian tabulate coral Favosites
† Favosites
- † Favosites niagarensis – or unidentified comparable form
† Finkelnburgia
- † Finkelnburgia virginica – tentative report
† Fistulipora
† Flexicalymene
† Floweria
- † Floweria chemungensis
† Foveosporites
- † Foveosporites insculptus

G

† Gasconadia
- † Gasconadia putilla
† Geminospora
- † Geminospora svalbardiae
- † Geminospora tuberculata
† Girtyspira
- † Girtyspira minuta
† Glabrocingulum
- † Glabrocingulum grayvillense
- † Glabrocingulum ornatum
† Glyptoglossella
- † Glyptoglossella cavellosa
† Glyptorthis
- † Glyptorthis equiconvexa – type locality for species
Fossilized shell of the Late Devonian-Late Triassic ammonoid cephalopod Goniatites
† Goniatites
† Grammysia
† Gyrodoma
- † Gyrodoma marylandica

H

† Halliella
- † Halliella fissurella
- † Halliella subequata
Fossil of the Ordovician bryozoan ("moss animal") Hallopora
† Hallopora
† Healdia
† Hebertella
- † Hebertella sinuata
† Hemimylacris – type locality for genus
- † Hemimylacris bassleri – type locality for species
† Heterotrypa
† Hindella
- † Hindella congregata
† Hippocardia
- † Hippocardia cumberlandiae – type locality for species
Fossilized shells of the Ordovician-Carboniferous sea snail Holopea
† Holopea
† Homeospira
- † Homeospira evax
† Hormotoma
- † Hormotoma hopkinsi
- † Hormotoma rowei
† Hyolithes
† Hystricosporites
- † Hystricosporites porcatus
† Hystriculina – tentative report
- † Hystriculina wabashensis
† Hystricurus

I

† Inaperaturate
† Ischyrodonta – tentative report
- † Ischyrodonta truncata
Fossil of the Middle-Late Ordovician giant trilobite Isotelus .
† Isotelus

J

† Juresania
- † Juresania symmetrica – tentative report

K

† Kitikamispira
- † Kitikamispira concinna
- † Kitikamispira multistriata
† Kloedenella
- † Kloedenella cornuta
- † Kloedenella immersa
- † Kloedenella intermedia
- † Kloedenella nitida
† Kloedenia
- † Kloedenia normalis
† Kyammodes
- † Kyammodes swartzi

L

† Lasiocrinus
- † Lasiocrinus scoparius – or unidentified comparable form
† Lecanospira
- † Lecanospira compacta – tentative report
† Leiorhynchus
† Leperditia
- † Leperditia alta
- † Leperditia elongata
† Leptaena
- † Leptaena rhomboidalis – report made of unidentified related form or using admittedly obsolete nomenclature
† Lepterditia
† Leptodesma
- † Leptodesma marylandica
- † Leptodesma naviforme
- † Leptodesma nitida
- † Leptodesma spinerigum
- † Leptodesma subplana – or unidentified comparable form
† Leptostrophia
- † Leptostrophia proutyi
† Lesueurilla
† Levenea
† Lichenaria
Shell of the Cambrian-modern brachiopod Lingula
† Lingula
- † Lingula carbonaria
- † Lingula gracilis
† Linoproductus
- † Linoproductus prattenianus
† Liocalymene
- † Liocalymene clintoni
† Lobosiphon
† Longispina
† Lophotriletes
- † Lophotriletes atratus
† Loxonema
† Lyrodesma
- † Lyrodesma poststriatum
Life restoration of the Permian snake-like amphibian Lysorophus showing speculative egg-coiling behavior
† Lysorophus
† Lytospira

M

† Macluritella
- † Macluritella marylandica – type locality for species
† Mastigobolbina
- † Mastigobolbina arguta
- † Mastigobolbina lata
- † Mastigobolbina typus
† Mcqueenoceras
† Meekospira
- † Meekospira percuta – or unidentified related form
† Megamolgophis
- † Megamolgophis agostini
† Melanoblattula – type locality for genus
- † Melanoblattula nigrescens – type locality for species
† Meristina
Fossilized shell of the Carboniferous-Permian nautiloid cephalopod Metacoceras
† Metacoceras
- † Metacoceras marylandica – type locality for species
† Modiolopsis
- † Modiolopsis gregarius
- † Modiolopsis leightoni
- † Modiolopsis modiolaris
† Modiomorpha
† Monticulipora
† Mylacris
- † Mylacris lapsa – type locality for species
† Mysticoceras

N

† Narkema
- † Narkema alternatum – type locality for species
Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis
† Naticopsis
† Neochonetes
- † Neochonetes granulifer
† Neospirifer
- † Neospirifer dunbari – tentative report
† Nucleospira
† Nucularca
- † Nucularca pectunculoides
† Nuculites
† Nuculopsis
- † Nuculopsis anadontoides
- † Nuculopsis girtyi

O

† Obolella
† Obolus – tentative report
† Ochetopteron – type locality for genus
- † Ochetopteron canaliculatum – type locality for species
† Octonaria
- † Octonaria muricata
Restoration of the Cambrian trilobite Olenellus
† Olenellus
† Olethroblatta
- † Olethroblatta lineolata – type locality for species
† Ophileta
† Orbiculoidea
- † Orbiculoidea missouriensis – tentative report
† Ormoceras
- † Ormoceras neumani
† Orospira
† Orthoceras
- † Orthoceras mackenzicum
† Orthomylacris
- † Orthomylacris berryi – type locality for species
- † Orthomylacris recta – type locality for species
† Orthonychia
- † Orthonychia prosseri
- † Orthonychia unguiculata
† Orthopora
† Orthorhynchula
- † Orthorhynchula linneyi

P

† Pachyblatta – type locality for genus
- † Pachyblatta convexa – type locality for species
- † Pachyblatta radiata – type locality for species
† Palaeoneilo
- † Palaeoneilo angusta
- † Palaeoneilo brevis
- † Palaeoneilo clarkei
- † Palaeoneilo constricta
- † Palaeoneilo crassa
- † Palaeoneilo petila
- † Palaeoneilo plana
† Palaeozygopleura
- † Palaeozygopleura glabra – tentative report
- † Palaeozygopleura hamiltoniae
- † Palaeozygopleura styliola
- † Palaeozygopleura terebra
† Paleonucula
- † Paleonucula croneisi
† Paleyoldia – type locality for genus
- † Paleyoldia glabra
† Paracyclas
- † Paracyclas lirata
† Paraechmina
- † Paraechmina abnormis
- † Paraechmina crassa
- † Paraechmina depressa
- † Paraechmina postica
- † Paraechmina spinosa
† Parajuresania
- † Parajuresania nebrascensis – tentative report
† Parallelodon
- † Parallelodon tenuistriata
† Patellilabia
- † Patellilabia tentoriolum – tentative report
† Permophorus
- † Permophorus oblongus
† Peronopora – tentative report
† Pharkidonotus
- † Pharkidonotus percarinatus
† Pholidops
- † Pholidops squamiformis
† Pholidostrophia
† Phragmosiphon
† Phymatopleura
- † Phymatopleura brazonensis
† Pintopsis
† Plagioglypta
- † Plagioglypta annulostriata
Fossilized shell of the Silurian-Early Triassic sea snail Platyceras
† Platyceras
- † Platyceras marylandicum
- † Platyceras niagarense
† Platysiphon
† Plectonotus
- † Plectonotus boucoti
† Plethobolbina
- † Plethobolbina cornigera
- † Plethobolbina typicalis
† Pleurophorus
- † Pleurophorus occidentalis
† Pliendoceras
† Polidevcia – type locality for genus
- † Polidevcia bellistriata
† Polytoechia – tentative report
† Praenucula
- † Praenucula lavata
† Proterocameroceras
† Prothyris
- † Prothyris singewaldi – type locality for species
† Protodouvillina
† Psalikilus
† Pseudoatrypa
† Pseudorthoceras
- † Pseudorthoceras knoxense
† Pseudozygopleura
- † Pseudozygopleura girtyi – or unidentified comparable form
† Pterinea
- † Pterinea demissa
- † Pterinea flintstonensis
Restoration of the Silurian-Middle Devonian eurypterid ("sea scorpion") Pterygotus
† Pterygotus
- † Pterygotus marylandicus
† Punctatisporites
- † Punctatisporites calamites
- † Punctatisporites glaber
- † Punctatisporites laevigatus
- † Punctatisporites solidus

R

† Rafinesquina
- † Rafinesquina alternata
- † Rafinesquina corrugata
† Resserella
- † Resserella elegantula
† Reticularia
- † Reticularia bicostata
† Retroclitendoceras
† Retusotriletes
- † Retusotriletes goensis
- † Retusotriletes planus
- † Retusotriletes punctatus
† Rhabdosporites
- † Rhabdosporites parvulus
† Rhipidomella
† Rhombopora – tentative report
- † Rhombopora lepidendroides – or unidentified comparable form
† Rhynchospirina
- † Rhynchospirina globosa
† Ribeiria
† Rioceras
† Ruedemannia – tentative report
- † Ruedemannia lirata

S

† Samarisporites
- † Samarisporites grossicorrugatus – type locality for species
- † Samarisporites grossicorugatus
† Sansabella
† Schellwienella
- † Schellwienella elegans
- † Schellwienella rugosa
- † Schellwienella tenuis
† Schizodus
- † Schizodus curtus
- † Schizodus oherni
- † Schizodus wheeleri
† Schuchertella
† Serpulopsis
- † Serpulopsis insita
† Shansiella
- † Shansiella carbonaria – tentative report
† Shellwienella
- † Shellwienella elegans
Modern specimen of the marine bivalve Solemya
Solemya
- † Solemya radiata
- † Solemya trapezoides
† Soleniscus
- † Soleniscus primigenius
† Solenopsis
- † Solenopsis solenoides
† Sowerbyella
- † Sowerbyella serica
- † Sowerbyella sericea
† Spaniodera – tentative report
- † Spaniodera simplex – type locality for species
† Spelaeotriletes
† Spinozonotriletes
Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer
† Spirifer
- † Spirifer disjunctus
- † Spirifer vanuxemi
† Stegerhynchus
- † Stegerhynchus neglectum
† Stenosiphon
† Stereostylus
- † Stereostylus profundus
† Stichotrophia
† Straparollus
- † Straparollus marylandicus
† Strobeus
- † Strobeus paludinaeformis
Fossilized shell of the Ordovician-Silurian brachiopod Strophomena
† Strophomena
† Syntrophinella

T

† Tainoceras
- † Tainoceras monolifer
† Tancrediopsis
- † Tancrediopsis cuneata
Fossilized shell of the Early Ordovician-Late Devonian probable mollusc Tentaculites
† Tentaculites
- † Tentaculites gyracanthus
- † Tentaculites minutus
- † Tentaculites niagarense
- † Tentaculites niagarensis
† Tetralobula
† Trigonocera
† Trimerus
- † Trimerus delphinocephalus
† Tritoechia
† Truncalosia
† Turbonopsis
- † Turbonopsis coronola – type locality for species

U

† Uncinulus
- † Uncinulus marylandicus
- † Uncinulus obtusiplicatus
- † Uncinulus stricklandi

V

† Verrucosisporites
- † Verrucosisporites rarituberculatus

W

† Waagenella
- † Waagenella crassus
Fossilized head of the Silurian eurypterid ("sea scorpion") Waeringopterus
† Waeringopterus
- † Waeringopterus cumberlandicus
† Welleria
- † Welleria obliqua
† Whitfieldella
- † Whitfieldella marylandica
† Worthenia
- † Worthenia castlemanensis – type locality for species

X

† Xenelasma

Z

† Zygobeyrichia
- † Zygobeyrichia incipiens
- † Zygobeyrichia tonolowayensis
- † Zygobeyrichia ventricornis
- † Zygobeyrichia ventripunctata
† Zygosella
- † Zygosella postica
† Zygospira
- † Zygospira modesta

References

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.{{cite web}}: |author= has generic name (help)

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List of the Paleozoic life of Maryland

Contents

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

R

S

T

U

V

W

X

Z

References