List of the Paleozoic life of Maryland

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 541 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
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References
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017.
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