List of the Mesozoic life of Delaware

This list of the Mesozoic life of Delaware contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Delaware and are between 252.17 and 66 million years of age.

A[]

• 

  A living Acteon barrel bubble sea snail
  †Acteon
  • †
• †
  • †
• †Aenona – tentative report
  • †
• †Agerostrea
  • †
• †
  • †
• †
  • †
• 

  Fossilized shell of the Jurassic-Miocene sea snail Ampullina
  †Ampullina
  • †
  • †
  • †
• †Anaklinoceras
  • †
  • †
• † – tentative report
• † – tentative report
  • †
  • †
• †
  • † – tentative report
• 

  Interior and exterior of a shell of an Anomia, or jingle shell
  †Anomia
  • †
  • †
  • †
• †Anomoeodus
  • †
• †
  • †
  • †
• 

  Fossilized skeleton of the Late Cretaceous bony fish Apsopelix
  †Apsopelix
  • †Apsopelix anglicus
• †
  • †
• †Arca
  • †
• Architectonica – or unidentified comparable form
  • †
• Arrhoges
• 

  Shell of a modern Astarte bivalve
  Astarte – tentative report
• †Avellana
  • †

B[]

• †Baculites
  • †Baculites haresi
  • †
  • †Baculites ovatus
  • †
• Barbatia
• 

  Fossilized guard of the Late Cretaceous belemnoid cephalopod Belemnitella
  †Belemnitella
  • †Belemnitella americana
• †
  • †
• † – or unidentified comparable form
  • †
• †
• Bernaya
  • †
• 

  Life restoration of the Late Cretaceous bony fish Bonnerichthys with an anachronistic scuba diver to scale
  †Bonnerichthys
  • †
• †
  • †
• †
  • †
  • † – tentative report
• †
• †Bulla
  • †

C[]

• Cadulus
  • †
• Caestocorbula
  • †Caestocorbula crassiplica
• †Calliomphalus
  • †Calliomphalus americanus – tentative report
  • †Calliomphalus nudus
  • †
• †
  • †
  • †
• † – tentative report
• 

  Shells of modern Capulus cap sea snails
  Capulus
•  [fr; nl; sv]
  • †
• Caryocorbula
• †Caveola
• †
  • †
• Cerithium
  • †
• †
  • † – type locality for species
• Clavagella
  • †
• 

  Life restoration of the Late Cretaceous mosasaurid Clidastes
  †Clidastes – or unidentified comparable form
• Cliona
• †
• †Coelosaurus
  • †Coelosaurus antiquus
• Corbula
• Crassatella
  • †
  • †
• †Crenella
  • †Crenella serica
• †Cretodus
  • †
• 

  Fossil of the Early Cretaceous-Eocene shark Cretolamna
  †Cretolamna
  • †Cretolamna appendiculata
• †
  • † – type locality for species
• Cucullaea
  • †
  • †
• Cuspidaria
  • †Cuspidaria grandis
• Cylichna
  • †
• † – or unidentified comparable form
• †
  • †
• †Cymella
  • †
  • †
• †
  • †

D[]

• †Dentalium
  • †
  • †
• † – tentative report
  • †
• 

  Restoration of several species of the Late Cretaceous ammonoid cephalopod Didymoceras
  †Didymoceras
  • †Didymoceras binodosum
  • †Didymoceras cheyennense
  • †
  • †Didymoceras platycostatum
  • †Didymoceras stevensoni
• †
  • †
• †
• †Dryptosaurus

E[]

• †Ecphora – tentative report
• †
• Emarginula
• 

  Restoration of the Early Cretaceous-Eocene bony fish Enchodus, or the "saber-toothed herring"
  †Enchodus
  • †
• † – or unidentified comparable form
  • †
• †
  • †
• †
  • †
• †
• † – tentative report
• †Euspira
  • †
• †Eutrephoceras
  • †
• †Exiteloceras
  • †
• 

  Interior of a fossilized shell of the Jurassic-Cretaceous foam oyster Exogyra
  †Exogyra
  • †Exogyra cancellata
  • †Exogyra costata
  • †Exogyra ponderosa
  • †

G[]

• Gastrochaena
• †Gegania
  • †
• †
• Ginglymostoma
  • †
• †
  • †
• 

  Life restoration of the Late Cretaceous mosasaur Globidens
  †Globidens
  • †Globidens alabamensis
• Glossus
• Glycymeris
  • †
• †
  • †
• †
  • †
  • †
  • †
• †
  • †
• • †
  • † – tentative report
  • †
  • †

H[]

• 

  Life restoration of the Late Cretaceous mosasaur Halisaurus
  †Halisaurus
  • †Halisaurus platyspondylus
• †Hamulus
  • †
  • †
• †
  • †
• Haustator – or unidentified comparable form
  • †
• • †
  • †
• †
• †Hoploscaphites
  • †
• 

  Restoration of two of the Permian-Late Cretaceous cartilaginous fish Hybodus
  †Hybodus
• †
  • †

I[]

• 

  Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
  †Inoceramus
• †Ischyodus
  • †Ischyodus bifurcatus
• †Ischyrhiza
  • †Ischyrhiza avonicola – or unidentified comparable form
  • †Ischyrhiza mira

J[]

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Jeletzkytes
  †Jeletzkytes
  • †
• – or unidentified comparable form
  • †

L[]

• † – or unidentified comparable form
  • †
• †
  • †
  • †
• †
  • †
  • † – tentative report
  • †
• 

  Illustration of a living Lepisosteus, or gar
  Lepisosteus – or unidentified comparable form
• †
  • †
• Lima
  • †
• †Linearis
  • †
  • †
  • †
• †Lingula – tentative report
• †
  • † – tentative report
  • †
• 

  Electron micrograph of fossilized teeth from the Early Jurassic-Early Cretaceous freshwater shark Lissodus
  †Lissodus
  • †
• Lithophaga
  • †
• †
• Lopha
  • †Lopha falcata
• †Lucina
• † – or unidentified comparable form
• • †
  • † – tentative report
  • †
• †
• Martesia
• †Mathilda
• †
  • †
  • †
• †Menuites
  • †
• †
  • †
• †Morea – or unidentified comparable form
  • †

N[]

• †
  • †
• †Neithea
  • †Neithea quinquecostata
• †Nemocardium
  • †
• †
  • †
• †
• †Notoceras
  • †
• 

  Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula
  Nucula
  • †Nucula percrassa
  • † – tentative report
• Nuculana
  • †
  • †
• †
  • †
• †
• †
  • †

O[]

• 

  A living Odontaspis sand shark
  Odontaspis
  • †
  • †
  • †
• †Ornithomimus
  • †
• † – or unidentified comparable form
  • †
• Ostrea

P[]

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Pachydiscus
  †Pachydiscus
• †Pachymelania
• †
  • †
  • †
• †
  • † – type locality for species
• Panopea
  • †
• †Paralbula
  • †
• † Paranomia
  • †
• †
  • †
  • †
• † – or unidentified comparable form
  • †
• †
  • †
• Patella
  • †
• †Pecten
• Pholadomya
  • †Pholadomya occidentalis
• Pholas – tentative report
• †Pinna
  • †
• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Placenticeras
  †Placenticeras
  • †
  • †
• † – or unidentified related form
  • †
• † – tentative report
  • †
• †
  • †
• Plicatula
  • †
• †
  • †
  • †
• 

  Fossilized teeth of the Cretaceous shark Pseudocorax
  †Pseudocorax
  • †
• †
• †
  • †
  • †
• †
  • † – or unidentified comparable form
• 

  Life restoration of the Late Cretaceous pterosaur Pteranodon
  †Pteranodon – tentative report
• †Pteria
• † – or unidentified comparable form
  • †
• †Pterotrigonia
  • †
  • †Pterotrigonia eufaulensis
  • †
• †Ptychotrygon
  • †
• Pycnodonte
  • †Pycnodonte mutabilis
• †
  • †
• †
  • †
• †
  • †

R[]

• †
  • †
• † – tentative report
• Rhinobatos
  • †
• 

  Restoration of the Late Cretaceous-Paleocene ray Rhombodus
  †Rhombodus
  • †
• Ringicula
• †

S[]

• †Sargana
• †
  • †
• 

  Restoration of several of the Early Cretaceous-Miocene shark Scapanorhynchus
  †Scapanorhynchus
  • †Scapanorhynchus texanus
• †Scaphites
  • †Scaphites hippocrepis
• †Sclerorhynchus
• Serpula
• †
  • †
• † – or unidentified comparable form
  • †
• †
  • †
• Spondylus
• 

  Life restoration of the Late Cretaceous shark Squalicorax
  Squalicorax
  • †Squalicorax falcatus
  • †Squalicorax kaupi
  • †Squalicorax pristodontus
• Squatina
  • †
• †Stephanodus
• †
  • †
  • †
• †
  • †
  • †
• †
  • †

T[]

• Tellina
• †Tenea
• Terebratulina
  • †
• †
• † – tentative report
• 

  Mounted fossilized skeleton of the Late Cretaceous sea turtle Toxochelys
  †Toxochelys
• Trachycardium
  • †Trachycardium eufaulensis
  • † – tentative report
• †Trigonia
• Trionyx
  • † – type locality for species
• † – or unidentified comparable form
  • †
• Turritella
  • †
  • †
  • †
  • †
  • †
  • †Turritella tippana
  • †Turritella trilira
  • †Turritella vertebroides
• 

  Restoration of the Late Cretaceous mosasaur Tylosaurus
  †Tylosaurus
• Tympanotonos – or unidentified comparable form
  • †

U[]

• † – or unidentified comparable form
  • †
• †
  • † – tentative report

V[]

• †
  • †
• †
  • †
• †

W[]

• † – tentative report
• †
• †
  • †

X[]

• Xenophora
• 

  Life restoration of the Cretaceous bony fish Xiphactinus
  †Xiphactinus

References[]

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