Placentals from North America

See images from the:

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

Megalagus sp.
From the Tertiary in Nebraska
© 1998 Dr. Richard Paselk, Humboldt State University Natural History Museum

Hesperocyon gregarius
From the Tertiary in Nebraska
© 1998 Dr. Richard Paselk, Humboldt State University Natural History Museum

Ischyromys typus
From the Tertiary in South Dakota
© 1998 Dr. Richard Paselk, Humboldt State University Natural History Museum

Leptauchenia nitia
From the Tertiary in South Dakota
© 1998 Dr. Richard Paselk, Humboldt State University Natural History Museum

Protapirus hancocki
From the Tertiary in Oregon
© 2000 public domain

Teletaceras radinskyi
From the Tertiary in Oregon
© 2002 public domain

Merycochoerus occidentalis
From the Tertiary in Oregon
© 1996 public domain

Entoptychus rostratus
From the Tertiary in Oregon
© 2000 public domain

Merychippus
From the Tertiary in Oregon
© 2000 public domain