List of the prehistoric life of Massachusetts

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

The Paleobiology Database records no known occurrences of Precambrian fossils in Massachusetts.

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

This list of the Cenozoic life of Massachusetts contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Massachusetts and are between 66 million and 10,000 years of age.

Fossil of the Cambrian trilobite Agraulos
Fossil of Chancelloria
Fossil of the Cambrian mollusc Halkieria .
Restorative model of Microdictyon .
Fossil of the mysterious Cambrian animal Torellella
Restoration of the Early Jurassic sauropodomorph dinosaur Anchisaurus
Illustration of a living Batrachoides toadfish
Fossils of the large theropod dinosaur footprint ichnogenus Eubrontes
Fossil negative with skin impressions of the theropod dinosaur footprint ichnogenus Grallator
Fossil from Dinosaur State Park and Arboretum of the Late Triassic-Middle Jurassic sauropodomorph dinosaur footprint ichnogenus Otozoum
Fossilized partial skeleton of the Early Jurassic theropod dinosaur Podokesaurus
Fossils of the Cambrian-modern worm burrow ichnogenus Skolithos
Shell of an Anadara transversa , or transverse ark clam
Portrait of a living Balaenoptera baleen whale
A living Callinectes sapidus , or Chesapeake blue crab
Illustration of a living Cymindis ground beetle
A living Donacia leaf beetle
Interior of the shell of an Ensis leei , or Atlantic jackknife clam
Fossilized shell of a Glycymeris , or bittersweet clam
Shells of Ischadium recurvum , or hooked mussels
Restoration of a Mammut americanum , or American mastodon
Preserved Neverita moon sea snail
A living Odobenus rosmarus , or walrus
Taxidermied specimen of Pinguinus impennis , or the great auk
Life restoration of the Oligocene-Miocene shark-toothed dolphin Squalodon
Shell of a Tellina , or tellin
A living Urosalpinx sea snail, or oyster drill