List of the prehistoric life of Delaware

This list of the prehistoric life of Delaware contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Delaware.

The Paleobiology Database records no known occurrences of Precambrian or Paleozoic fossils in Delaware.

Fossilized skeleton of the Late Cretaceous bony fish Apsopelix
Fossilized guard of the Late Cretaceous belemnoid cephalopod Belemnitella
Life restoration of the Late Cretaceous mosasaurid Clidastes
Life restoration of the Late Cretaceous primitive tyrannosaur Dryptosaurus
Illustration of a reconstructed skull of the Late Cretaceous mosasaur Globidens
Fossilized shell of the Late Cretaceous ammonoid cephalopod Jeletzkytes
A living Odontaspis sand shark
Life restoration of the Late Cretaceous pterosaur Pteranodon
Life restoration of the Late Cretaceous shark Squalicorax
Restoration of the Late Cretaceous mosasaur Tylosaurus
Life restoration of the Miocene-Pliocene beardog Amphicyon
Shell of a modern Astarte bivalve
Fossilized tooth of the Miocene-Pliocene shark Cosmopolitodus hastalis , or broad-toothed mako
Fossilized cranium of the Miocene bear-dog Cynelos
A living Galeocerdo cuvier , or tiger shark
Fossilized teeth of the Miocene weasel shark Hemipristis serra
A living Lunatia moon sea snail
Fossilized shell of a Modiolus , or horsemussel
Fossilized skull of the Miocene toothed whale Schizodelphis
Life restoration of the Oligocene-Miocene shark-toothed dolphin Squalodon
A living Uca pugnax , or Atlantic marsh fiddler crab