Prehistoric Life of North Dakota Map

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Prehistoric Life of North Dakota

John W. Hoganson

North Dakota Geological Survey

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Fossil map image with townsMammut americanum Borealosuchus Equus Champosaurus gigas Bison latifrons Titanoides Plesiadapis Palaeocastor Plastomenus Dinictis Hesperocyon Palaeolagus Hyaenodon Triceratops horridus Ischyromys Merycoidodon Poebrotherium Brontops Edmontosaurus Archaeotherium Mesohippus bairdi Coryphodon Ptilodus Alphadon Rana pipiens Cervis elaphus Tyrannosaurus rex Megalonyx jeffersonii Troodon Amebelodon Ischyodus Opisthotriton Myledaphus bipartitus Castor Perca flavescens Enchodus Homo sapiens Carcharias Bison Archelon Squalus Hesperornis regalis Mammuthus primigenius Plioplatecarpus Elasmosaurus Xiphactinus Tusosteuthis longa
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Prehistoric Life Map

Each Icon on the state map is a link to additional information

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TERTIARY

PALEOCENE

golden valley formation map color Golden Valley Formation

sentinel butte formation map color Sentinel Butte Formation

bullion creek formation map color Bullion Creek Formation

Cannonball Ludlow and Slope Formations map color Cannonball, Ludlow and Slope Formations

MIOCENE

arikaree formation map color Arikaree Formation

EOCENE - OLIGOCENE

Chadron and Brule Formation map color Chadron and Brule Formation

QUATERNARY

Coleharbor Group (glacial drift)

lake sediment map color Lake sediment (silt and clay)

 river and beach sediment map color river and beach sediment (sand and gravel)

glacial sediment (till)

flat to rolling land map color Flat to rolling land

hilly land map color Hilly Land