List of the Mesozoic life of Maryland

This list of the Mesozoic 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 252.17 and 66 million years of age.

A

 * Acirsa
 * †Acirsa americana – or unidentified related form
 * †Acirsa clathrata
 * †Acirsa flexicostata
 * Acrocantosaurus4.jpg †[[Acrocanthosaurus]] – or unidentified comparable form
 * †Acteon
 * †Acteon cicatricosus
 * †Acutostrea
 * †Acutostrea plumosa
 * †Aenona
 * †Aenona eufaulensis
 * †Aenona georgiana
 * †Agerostrea
 * †Agerostrea mesenterica
 * Allognathosuchus.JPG †[[Allognathosuchus]] – or unidentified comparable form
 * †Allosaurus
 * †Allosaurus medius – type locality for species
 * †Ambigostrea
 * †Ambigostrea tecticosta
 * Amuletum
 * †Amuletum dumasensis
 * †Amuletum fasciolatum – or unidentified comparable form
 * Amyda gregaria.jpg †[[Amyda]]
 * †Amyda prisca
 * †Anatimya
 * †Anatimya anteradiata
 * †Ancilla
 * †Ancilla acutula
 * †Anomalofusus
 * †Anomalofusus lemniscatus
 * †Anomia
 * †Anomia argentaria
 * †Anomia ornata
 * †Anomoeodus
 * †Anomoeodus latidens
 * †Anomoeodus phaseolus
 * †Anteglossia
 * †Aphrodina
 * †Aphrodina tippana
 * †Araloselachus
 * †Araloselachus cuspidata
 * †Arctostrea
 * †Arctostrea falacata
 * †Argillomys – type locality for genus
 * †Argillomys marylandensis – type locality for species
 * †Ariadnaesporites
 * †Ariadnaesporites intermedius – type locality for species
 * Arrhoges
 * †Arundelconodon – type locality for genus
 * †Arundelconodon hottoni – type locality for species
 * †Arundelemys – type locality for genus
 * †Arundelemys dardeni – type locality for species
 * Astarte
 * †Astarte culebrensis
 * Astrodon johnstoni.jpg †[[Astrodon]]
 * †Astrodon johnstoni – type locality for species

B

 * Baculites grandis shell.JPG †[[Baculites]]
 * †Baculites baculus
 * †Baculites elisasi
 * †Baculites vertebralis
 * †Bathytormus
 * †Bathytormus pteropsis
 * †Bellifusus
 * †Bellifusus curvicostatus
 * †Belliscala
 * †Beretra
 * †Beretra gracilis – or unidentified comparable form
 * †Beretra ripleyana
 * †Beretra speciosa
 * †Bottosaurus
 * †Bottosaurus harlani
 * Botula
 * †Botula conchafodentis
 * †Botula lingua
 * †Botula ripleyana
 * †Buccinopsis
 * †Buccinopsis crassicostata

C

 * Cadulus
 * †Cadulus obnutus
 * Caestocorbula
 * †Caestocorbula crassaplica
 * †Caestocorbula crassiplica
 * †Caestocorbula percompressa
 * †Caestocorbula terramaria
 * †Camptonectes
 * †Camptonectes bubonis
 * Carcharias
 * †Carcharias holmdelensis
 * †Carcharias samhammeri
 * †Cardiaster
 * †Cardiaster marylandicus
 * Cardium (bivalve)
 * †Caveola
 * †Caveola acuta
 * Ceratodus.jpg †[[Ceratodus (genus)|Ceratodus]]
 * †Ceratodus kranzi – type locality for species
 * Cerithium
 * †Cerithium weeksi – or unidentified related form
 * Chiloscyllium
 * †Chiloscyllium greeni
 * †Cimoliasaurus
 * †Cimoliasaurus magnus
 * †Clavatipollenites
 * †Clavipholas
 * †Clavipholas pectorosa
 * †Clavipholas pectrosa
 * †Coelosaurus
 * †Coelosaurus affinis
 * Coelosaurus antiquus tibia.jpg †[[Coelosaurus antiquus]]
 * †Coelurus
 * †Coelurus gracilis – type locality for species
 * †Corax
 * †Corax pristiodontus
 * Corbula
 * †Corbula subradiata
 * †Corymya – or unidentified comparable form
 * †Corymya tennis
 * †Couperites
 * †Couperites mauldinensis
 * Crassatella
 * †Crassatella vadosa
 * †Crenella
 * †Crenella elegantula
 * †Crenella serica
 * †Creonella
 * †Creonella subangulata – or unidentified comparable form
 * †Creonella triplicata
 * Shark fossil.jpg †[[Cretolamna]]
 * †Cretolamna appendiculata
 * †Cretolamna serrata – or unidentified comparable form
 * Cucullaea
 * †Cucullaea capax
 * †Cuna
 * †Cuna texana
 * †Cuneolus
 * †Cuneolus pectrosa
 * †Cuneolus tippana
 * Cuspidaria
 * †Cuspidaria ampulla
 * †Cyclorisma
 * †Cyclorisma parva
 * Cylichna
 * †Cylichna diversilirata
 * †Cylichna incisa
 * †Cylindracanthus
 * †Cymbophora
 * †Cymbophora appressa
 * †Cymbophora berryi
 * †Cymbophora wordeni
 * †Cymella
 * †Cymella bella
 * †Cyprimeria
 * †Cyprimeria alta
 * †Cyprimeria depressa
 * †Cyprimeria major

D

 * Dasyatis
 * Deinonychus_ewilloughby.png †[[Deinonychus]]
 * †Deinonychus antirrhopus
 * †Deinosuchus
 * †Deinosuchus rugosus
 * †Dentalium
 * †Dentalium leve
 * †Deussenia
 * †Deussenia bellalirata
 * †Deussenia ripleyana
 * †Discoscaphites
 * †Discoscaphites abyssinius
 * †Discoscaphites conradi
 * †Discoscaphites gulosus
 * †Discoscaphites iris
 * †Drilluta
 * †Drilluta buboanus
 * †Drilluta distans
 * †Drilluta marylandicus

E

 * †Egertonia
 * †Ellipsoscapha
 * †Ellipsoscapha cylindrica
 * †Ellipsoscapha mortoni
 * †Ellipsoscapha occidentalis – or unidentified comparable form
 * Enchodus petrosus cropped.png †[[Enchodus]]
 * †Enchodus dirus
 * †Enchodus ferox
 * †Enchodus feroz
 * †Endoptygma
 * †Endoptygma leprosa
 * †Eoacteon
 * †Eoacteon linteus
 * †Etea
 * †Etea carolinensis
 * †Eubaculites
 * †Eubaculites carinatus
 * †Eubaculites latecarinatus
 * †Eufistulana
 * †Eufistulina
 * †Eulima
 * †Eulima clara
 * †Eulima monmouthensis
 * †Euspira
 * †Euspira rectilabrum
 * †Euspira reetilabrum
 * †Eutrephoceras
 * †Eutrephoceras dekayi
 * †Ewingia
 * †Ewingia problematica
 * Exogyracostata.JPG †[[Exogyra]]
 * †Exogyra costata

F

 * †Flabellosmilia
 * †Flabellosmilia vaughani
 * †Fulgerca
 * †Fulgerca attenuata – or unidentified related form
 * †Fusimilis
 * †Fusimilis kummeli
 * †Fusimilis novemcostatus
 * †Fusimilis tippanus

G

 * Galeorhinus
 * †Galeorhinus giradoti
 * Ginglymostoma
 * Glossus
 * Glycimeris
 * †Glycimeris mortoni
 * Glycymeris
 * †Glycymeris rotundata
 * †Glyptops
 * †Glyptops caelatus – type locality for species
 * †Goniochasma
 * †Goniopholis
 * †Goniopholis affinis – type locality for species
 * Grallator.jpg †[[Grallator]] – or unidentified comparable form
 * †Granocardium
 * †Granocardium dumosum
 * †Granocardium eufalense
 * †Granocardium kuemmeli
 * †Granocardium kummeli
 * †Granocardium lowei
 * †Graphidula
 * †Graphidula multicostata
 * †Graphidula terebriformis
 * †Gryphaeostrea
 * †Gryphaeostrea vomer
 * Gyrodes
 * †Gyrodes americanus
 * †Gyrodes spillmani
 * †Gyrodes subcarinatus
 * †Gyrodes supraplicatus

H

 * †Hadrodus
 * Halisaurus arambourgi.jpg †[[Halisaurus]]
 * †Halisaurus platyspondylus
 * †Hamatia – type locality for genus
 * †Hamatia elkneckensis – type locality for species
 * †Hamulus
 * †Hamulus falcatus
 * †Hamulus huntensis – tentative report
 * †Hamulus onyx
 * †Hamulus squamosus
 * †Hercorhynchus
 * †Hercorhynchus trililatus
 * †Hercorhyncus
 * †Hercorhyncus pagodaformis
 * †Hercorhyncus tippanus
 * Heterodontus
 * †Heteromorpha
 * †Heteromorpha ammonite
 * Nephropidae - Hoploparia longimana cropped.jpg †[[Hoploparia]]
 * †Hoploparia gladiator
 * †Hybodus
 * †Hydrotribulus
 * †Hydrotribulus asper
 * †Hyposaurus
 * †Hyposaurus rogersii
 * †Hypotodus
 * †Hypsiloichnus – type locality for genus
 * †Hypsiloichnus marylandicus – type locality for species

I

 * Inoceramus steenstrup, world's largest fossil mollusk.jpg †[[Inoceramus]]
 * †Ischyodus
 * †Ischyrhiza
 * †Ischyrhiza avonicola – or unidentified comparable form
 * †Ischyrhiza mira

J

 * †Jeletzkytes
 * †Jeletzkytes criptonodosus
 * †Jeletzkytes nebrascensis
 * Juliacorbula
 * †Juliacorbula monmouthensis

L

 * Laternula
 * †Laternula robusta
 * †Latiala
 * †Latiala lobata – or unidentified comparable form
 * Latiaxis mawae 5a.jpg [[Latiaxis]]
 * †Legumen
 * †Legumen ellipticum
 * †Legumen planulatum
 * Lepisosteus
 * †Leptosolen
 * †Leptosolen biplicata
 * †Leptosolen elongata
 * Lima
 * †Lima pelagica
 * Limatula
 * †Limatula acutilineata
 * †Linearia
 * †Linearia crebelli
 * †Linearis
 * †Linearis metastriata
 * †Liopeplum
 * †Liopeplum canalis
 * †Liopeplum coronatum
 * †Liopeplum cretaceum
 * †Liopistha
 * †Liopistha prolexta
 * †Liopistha protexta
 * Lithophaga
 * †Lithophaga carolinensis
 * †Lithophaga julia
 * †Longitubus
 * †Longitubus lineatus
 * †Longoconcha
 * Bivalvia - Lopha sp.JPG [[Lopha]]
 * †Lopha falcata
 * †Lopha mesenterica
 * †Lowenstamia
 * †Lowenstamia cucullata
 * †Loxsomopteris – type locality for genus
 * †Loxsomopteris anasilla – type locality for species
 * †Lupira
 * †Lycettia
 * †Lycettia tippana
 * †Lycettia tippanus
 * †Lyriochlamys
 * †Lyriochlamys cretosa
 * †Lyriochlamys cretosus

M

 * Malletia
 * †Malletia littlei
 * †Malletia longfrons
 * †Malletia longifrons
 * †Malletia stephensoni
 * †Mathilda
 * †Mathilda cedarensis – or unidentified comparable form
 * †Mathilda corona
 * †Mauldinia – type locality for genus
 * †Mauldinia mirabilis – type locality for species
 * †Menabites
 * †Menabites delawarensis
 * †Menabites vanuxemi
 * †Mesostoma
 * †Micrabacia
 * †Micrabacia marylandica
 * †Micrabacia radiata
 * †Modiolus
 * †Modiolus sedesclaris
 * †Modiolus sedesclarus
 * †Modiolus trigonus
 * †Morea
 * †Morea cancellaria
 * †Morea marylandica
 * Mosasaurus BW.jpg †[[Mosasaurus]]
 * †Mosasaurus conodon
 * †Mosasaurus dekayi
 * †Mosasaurus maximus
 * Myliobatis
 * †Myliobatis obesus
 * †Myobarbum
 * †Myobarbum monmouthensis – tentative report
 * Myrtea
 * †Myrtea stephensoni
 * †Mytilus – tentative report

N

 * †Napulus
 * †Napulus octoliratus
 * Nebrius ferrugineus cropped.jpg [[Nebrius]]
 * †Nemodon
 * †Nemodon eufalensis
 * †Nemodon eufaulensis
 * †Nemodon stantoni
 * †Nonactaeonina
 * †Nonactaeonina graphoides – or unidentified comparable form
 * Nucula
 * †Nucula camia
 * †Nucula cuneifrons
 * †Nucula percrassa
 * †Nucula perequalis
 * †Nucula severnensis
 * †Nucula slackiana
 * Nuculana
 * †Nuculana rostratruncata
 * †Nuculana whitfieldi
 * †Nymphalucina
 * †Nymphalucina linearia

O

 * Odontaspis ferox 3.jpg [[Odontaspis]]
 * †Odontaspis aculeatus
 * †Odontaspis macrota
 * †Odontobasis
 * †Odontobasis sulcata – or unidentified comparable form
 * †Oligoptycha
 * †Opertochasma
 * †Osteopygis
 * †Osteopygis emarginatus

P

 * †Paladmete
 * †Paladmete cancellaria
 * †Paladmete laevis
 * †Paleopsephaea
 * †Paleopsephaea tenuilirata
 * Panopea
 * †Panopea decisa
 * †Panopea monmouthensis
 * †Paralbula
 * †Paralbula casei
 * †Parmicorbula
 * †Parmicorbula percompressa
 * †Parmicorbula terramaria
 * †Pelletixia
 * †Pelletixia amelguita – type locality for species
 * †Periplomya
 * †Peritresius
 * †Peritresius ornatus
 * †Perrisonota
 * †Perrisonota littlei
 * †Perrisonota protexta
 * †Phelopteria
 * †Phelopteria linguaeformis
 * †Phelopteria linguiformis
 * Pholas
 * †Pinna
 * †Pinna laqueata
 * Placenticeras meeki.jpg †[[Placenticeras]]
 * †Placenticeras placenta
 * †Placenticeras syrtale
 * †Platananthus
 * †Platananthus potomacensis – type locality for species
 * †Platanocarpus – type locality for genus
 * †Platanocarpus elkneckensis – type locality for species
 * †Platanocarpus marylandensis – type locality for species
 * †Pleuriocardia
 * †Pleuriocardia eufalensis
 * †Pleurocoelus – type locality for genus
 * †Pleurocoelus altus – type locality for species
 * †Pleurocoelus nanus – type locality for species
 * †Plicatoscyllium
 * †Plicatoscyllium antiquum
 * †Plicatoscyllium derameei
 * Polinices
 * †Polinices kummeli
 * †Postligata
 * †Postligata wordeni
 * †Praeleda
 * †Praeleda compar
 * †Priconodon – type locality for genus
 * †Priconodon crassus – type locality for species
 * Prognathodon3.jpg †[[Prognathodon]]
 * †Prognathodon rapax
 * †Promathildia
 * †Promathildia parvula – or unidentified comparable form
 * †Propanoplosaurus – type locality for genus
 * †Propanoplosaurus marylandicus – type locality for species
 * †Protocallianassa
 * †Protocallianassa mortoni
 * †Protocardia
 * †Protocardia spillmani
 * †Pseudohypolophus
 * †Pseudohypolophus menultyi
 * †Pseudolimea
 * †Pseudolimea reticulata
 * †Pseudolimea serrata
 * Pseudomalaxis
 * †Pseudomalaxis pateriformis
 * †Pseudomalaxis pilsbryi
 * †Pseudomalaxis stantoni
 * †Pteria
 * †Pteria rhombica
 * †Pterocerella
 * †Pterocerella tippana
 * Megatrigoniidae - Pterotrigonia caudata.JPG †[[Pterotrigonia]]
 * †Pterotrigonia eufalensis
 * †Pterotrigonia eufaulensis
 * †Pterotrigonia thoracica
 * †Ptychotrygon
 * †Ptychotrygon vermiculata
 * †Pugnellus
 * †Pugnellus densatus
 * Pycnodonte
 * †Pycnodonte vesicularis
 * †Pyrifusus
 * †Pyrifusus crassus
 * †Pyrifusus subdensatus
 * †Pyropsis
 * †Pyropsis perlata
 * †Pyropsis prolixa

R

 * Raja
 * †Raja farishi
 * †Remera
 * †Remera cretacea – or unidentified comparable form
 * †Remera flexicostata
 * †Remera juncea
 * †Remnita
 * †Remnita anomalocostata
 * †Remnita biacuminata – or unidentified comparable form
 * †Remnita hastata
 * Rhinobatos
 * Rhombodus NT small cropped.png †[[Rhombodus]]
 * †Rhombodus binkhorsti
 * †Rhombopsis
 * Ringicula
 * †Ringicula clarki
 * †Ringicula pulchella
 * Rissoina
 * †Rissoina tennesseensis

S

 * †Sargana
 * †Sargana stantoni
 * †Scambula
 * †Scambula perplana
 * SmallScaphites.jpg †[[Scaphites]]
 * †Scaphites hippocrepis
 * Serpula
 * †Serratolamna
 * †Serratolamna serrata
 * †Serrifusus – tentative report
 * †Solariorbis
 * †Solariorbis clara – or unidentified comparable form
 * †Solyma
 * †Solyma elliptica
 * †Solyma gardnerae
 * †Sourimis
 * †Sourimis georgiana – tentative report
 * †Spanomera
 * †Spanomera marylandensis
 * †Sphenodiscus
 * †Sphenodiscus lobatus
 * †Sphenodiscus pleurisepta
 * Squalicorax falcatusDB.jpg [[Squalicorax]]
 * †Squalicorax falcatus
 * †Squalicorax kaupi
 * †Squalicorax pristodontus
 * Squatina
 * †Squatina hassei
 * †Stantonella
 * †Stantonella interrupta
 * †Stephanodus
 * Striarca
 * †Striarca cuneata
 * †Striarca saffordi
 * †Striaticostatum
 * †Striaticostatum sparsum
 * †Striatopollis
 * †Striatopollis paraneus
 * †Striatopollis vermimurus
 * †Syncyclonema
 * †Syncyclonema simplicius

T

 * Tellina
 * †Tellinimera
 * †Tellinimera buboana
 * †Tellinimera gabbi
 * †Tenea
 * †Tenea parilis
 * Tenontosaurus BW.jpg †[[Tenontosaurus]]
 * †Tenuipteria
 * †Tenuipteria argentea
 * †Tenuipteria argenteus
 * †Thoracosaurus
 * †Thoracosaurus neocesariensis
 * Trachycardium
 * †Trachycardium eufaulensis
 * †Trachytriton
 * Turritellatricarinata.jpg [[Turritella]]
 * †Turritella bilira
 * †Turritella hilgardi
 * †Turritella paravertebroides
 * †Turritella tippana
 * †Turritella trilira
 * †Turritella vertebroides

U

 * †Urceolabrum
 * †Urceolabrum tuberculatum

V

 * †Veniella
 * †Veniella conradi
 * †Vetericardiella
 * †Vetericardiella crenalirata
 * †Vorhisia

W

 * †Weeksia
 * †Weeksia peplanata

X

 * †Xylophagella
 * †Xylophagella irregularis