The Paleontology of the midwest

Vertebrates from North America

> Fishes | Early Tetrapods | Amphibians | Reptiles | Mammal Relatives | Mammals

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Charcharodon megalodon
Charcharodon megalodon
© 2004 UCMP

Telmatherium
Telmatherium
© 2002 public domain

rhinoceros
rhinoceros
© 2006 public domain

What are Vertebrates? Vertebrates, which include fish, birds, mammals, and more, are a very diverse group of animals. They come in all shapes and sizes, from the 8 millimeter-long goby (fish) to Argentinosaurus, a dinosaur that was 42 meters long. They live in all kinds of habitats, from the deep sea to the air, and from the tropics to the arctic. Some just have skin, but others have hair, feathers, scales, or other coverings. Vertebrates are chordates that have a backbone, and their fossil record extends back to the Cambrian. Note: Their chordate relatives are discussed in Hemichordates and Chordates.

First known fossil occurrence: Cambrian.

Last known fossil occurrence: Quaternary. This group has living relatives.

Fossils through time:
Choose a time period to see what life was like:

Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian