List of the Paleozoic life of Maryland

{{Compact TOC}}

• †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
• File:Amplexopora petasifomis.jpg]] †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
• File:Atrypa reticularis pedunculate Gondelsheim CRF.jpg]] †Atrypa reticularis – report made of unidentified related form or using admittedly obsolete nomenclature
• †Aviculopecten

{{Compact TOC}}

• †Bactrites
• Bairdia
• †Bassipterus
• †Bassipterus virginicus
• †Batostomella
• †Bellefontia
• †Bellefontia collieana – tentative report
• File:Bellerophon umbilicalis.jpg]] †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

{{Compact TOC}}

• †Calamospora
• †Calamospora atava
• †Calamospora nigrata
• †Calymene
• †Calymene camerata
• †Calymene cresapensis
• File:Calymenidae - Calymene niagarensis.JPG]] †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
• File:Cincinnetina meeki (Miller, 1875) slab 3.jpg]] †Cincinnetina
• †Cincinnetina multisecta
• †Clidophorus
• †Clidophorus nitidus
• †Clitendoceras
• †Coelospira
• †Coelospira nitens
• †Coelospira sulcata
• †Composita
• †Composita ovata – tentative report
• †Conularia
• †Conularia niagarensis
• †Convolutispora
• †Convolutispora subtilis
• †Coreanoceras
• File:Cornulites cellulosus.jpg]] †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

{{Compact TOC}}

• †Dakeoceras
• File:SilurianTrilobite.jpg]] †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
• File:The Eurypterida of New York plate 40.jpg]] †Dolichopterus
• †Doloresella
• †Donaldina
• †Donaldina stevensana
• †Drepanellina
• †Drepanellina clarki
• †Drepanellina ventralis
• †Dunbarella
• †Dunbarella striata – type locality for species

{{Compact TOC}}

• †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
• File:Erettopterus osiliensis.jpg]] †Erettopterus – tentative report
• †Escharendoceras
• †Euchondria
• †Euchondria levicula – tentative report
• †Eukloedenella
• †Eukloedenella elongata
• †Eukloedenella punctillosa
• †Eukloedenella sinuata
• †Eukloedenella sulcifrons
• †Eukloedenella umbilicata
• †Euomphalus
• †Euphemites
• †Euphemites vittatus
• File:Eurypterus Paleoart.jpg]] †Eurypterus
• †Eurypterus remipes
• †Euthydesma

{{Compact TOC}}

• File:FavositesOrdovicianIndiana.jpg]] †Favosites
• †Favosites niagarensis – or unidentified comparable form
• †Finkelnburgia
• †Finkelnburgia virginica – tentative report
• †Fistulipora
• †Flexicalymene
• †Floweria
• †Floweria chemungensis
• †Foveosporites
• †Foveosporites insculptus

{{Compact TOC}}

• †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
• File:Goniatitidae - Goniatites species.JPG]] †Goniatites
• †Grammysia
• †Gyrodoma
• †Gyrodoma marylandica

{{Compact TOC}}

• †Halliella
• †Halliella fissurella
• †Halliella subequata
• File:Hallopora multitabulata fossil bryozoan (Ordovician; Frankfort IL.jpg]] †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
• File:Holopeidae - Holopea praestans.JPG]] †Holopea
• †Homeospira
• †Homeospira evax
• †Hormotoma
• †Hormotoma hopkinsi
• †Hormotoma rowei
• †Hyolithes
• †Hystricosporites
• †Hystricosporites porcatus
• †Hystriculina – tentative report
• †Hystriculina wabashensis
• †Hystricurus

{{Compact TOC}}

• †Inaperaturate
• †Ischyrodonta – tentative report
• †Ischyrodonta truncata
• File:Isotelus brachycephalus.JPG.]] †Isotelus

{{Compact TOC}}

• †Juresania
• †Juresania symmetrica – tentative report

{{Compact TOC}}

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

{{Compact TOC}}

• †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
• File:Lingula anatina 7 .JPG]] †Lingula
• †Lingula carbonaria
• †Lingula gracilis
• †Linoproductus
• †Linoproductus prattenianus
• †Liocalymene
• †Liocalymene clintoni
• †Lobosiphon
• †Longispina
• †Lophotriletes
• †Lophotriletes atratus
• †Loxonema
• †Lyrodesma
• †Lyrodesma poststriatum
• File:Lysorophus.jpg showing speculative egg-coiling behavior]] †Lysorophus
• †Lytospira

{{Compact TOC}}

• †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
• File:Metacoceras discoideum 01.jpg]] †Metacoceras
• †Metacoceras marylandica – type locality for species
• †Modiolopsis
• †Modiolopsis gregarius
• †Modiolopsis leightoni
• †Modiolopsis modiolaris
• †Modiomorpha
• †Monticulipora
• †Mylacris
• †Mylacris lapsa – type locality for species
• †Mysticoceras

{{Compact TOC}}

• †Narkema
• †Narkema alternatum – type locality for species
• File:Neritopsidae - Naticopsis.JPG]] †Naticopsis
• †Neochonetes
• †Neochonetes granulifer
• †Neospirifer
• †Neospirifer dunbari – tentative report
• †Nucleospira
• †Nucularca
• †Nucularca pectunculoides
• †Nuculites
• †Nuculopsis
• †Nuculopsis anadontoides
• †Nuculopsis girtyi

{{Compact TOC}}

• †Obolella
• †Obolus – tentative report
• †Ochetopteron – type locality for genus
• †Ochetopteron canaliculatum – type locality for species
• †Octonaria
• †Octonaria muricata
• File:Olenellus NT small.jpg]] †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

{{Compact TOC}}

• †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
• File:PlatycerasLoganOhio.jpg]] †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
• File:Pterygotus anglicus reconstruction.jpg]] †Pterygotus
• †Pterygotus marylandicus
• †Punctatisporites
• †Punctatisporites calamites
• †Punctatisporites glaber
• †Punctatisporites laevigatus
• †Punctatisporites solidus

{{Compact TOC}}

• †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

{{Compact TOC}}

• †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
• File:Solemya elarraichensis holotype.jpg]] 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
• File:Spirifer perlamosus pedunculate valve.jpg]] †Spirifer
• †Spirifer disjunctus
• †Spirifer vanuxemi
• †Stegerhynchus
• †Stegerhynchus neglectum
• †Stenosiphon
• †Stereostylus
• †Stereostylus profundus
• †Stichotrophia
• †Straparollus
• †Straparollus marylandicus
• †Strobeus
• †Strobeus paludinaeformis
• File:Strophomena costellata brachial.jpg]] †Strophomena
• †Syntrophinella

{{Compact TOC}}

• †Tainoceras
• †Tainoceras monolifer
• †Tancrediopsis
• †Tancrediopsis cuneata
• File:Tentaculitid041011.jpg]] †Tentaculites
• †Tentaculites gyracanthus
• †Tentaculites minutus
• †Tentaculites niagarense
• †Tentaculites niagarensis
• †Tetralobula
• †Trigonocera
• †Trimerus
• †Trimerus delphinocephalus
• †Tritoechia
• †Truncalosia
• †Turbonopsis
• †Turbonopsis coronola – type locality for species

{{Compact TOC}}

• †Uncinulus
• †Uncinulus marylandicus
• †Uncinulus obtusiplicatus
• †Uncinulus stricklandi

{{Compact TOC}}

• †Verrucosisporites
• †Verrucosisporites rarituberculatus

{{Compact TOC}}

• †Waagenella
• †Waagenella crassus
• File:Waeringopterus head 3.png]] †Waeringopterus
• †Waeringopterus cumberlandicus
• †Welleria
• †Welleria obliqua
• †Whitfieldella
• †Whitfieldella marylandica
• †Worthenia
• †Worthenia castlemanensis – type locality for species

{{Compact TOC}}

• †Xenelasma

{{Compact TOC}}

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

• {{cite web |title=Fossilworks: Gateway to the Paleobiology Database |author=((Various Contributors to the Paleobiology Database)) |url=https://www.fossilworks.org |access-date=17 December 2021}}

{{Era nav|title=Lists of the prehistoric life of Maryland|prefix=List of the |suffix= life of Maryland}}

{{Lists of the Paleozoic life of the United States}}

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*Paleozoic

Maryland