Prehistoric Models: Rodentia

(gnawing mammals)

Mammals are a class animals defined as warm-blooded vertebrates, distinguished by the possession of hair or fur, the secretion of milk by females for the nourishment of the young, and (typically) the birth of live young (with only two modern exceptions).

Kingdom: Animalia – Phylum: Chordata – Superclass: Tetrapoda – Class: Mammalia – Order: Rodentia


Late Paleocene to Holocene


Genus and species: Sciurus vulgaris

Common name: Eurasian red squirrel

Classification: Family: Sciurus

Time: Holocene

Range: Asia and Europe

Diet: Herbivore

Genus and species: Castor canadensis

Common name: North American beaver

Classification: Family: Castoridae

Time: Holocene

Range: North America

Diet: Herbivore

Genus and species: Hydrochoerus hydrochaeris

Common name: Capybara

Classification: Family: Caviidae

Time: Holocene

Range: South America

Diet: Herbivore

Genus: Cynomys sp.

Common name: Praire dog

Classification: Family: Sciuridae

Time: Late Pliocene to Holocene

Range: North America

Diet: Herbivore

Common name: Hamsters

Classification: Family: Cricetidae – Subfamily: Cricetinae

Time: Middle Miocene to Holocene

Range: Global (domesticated)

Diet: Herbivore

Genus and species: Mus musculus

Common name: House mouse

Classification: Family: Muridae

Time: Holocene

Range: Global

Diet: Herbivore

Genus and species: Ceratogaulus sp.

Common name: Horned gopher

Classification: Family: Mylagaulidae

Time: Late Miocene to Pliocene

Range: Great Plains of North America

Diet: Herbivore

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