- The
Chadronian is a
North American Land
Mammal Age
typically set from
around 37,000,000 to 33,700,000
years BP, a
period of 3.3
million years. The Chadronian...
- In
North America,
ursids (bears) and
musteloids first appeared in the
Chadronian[citation needed] of the late Eocene, and in early-Oligocene Europe, immediately...
- species. The
oldest squirrel fossil, Hesperopetes,
dates back to the
Chadronian (late Eocene,
about 40–35
million years ago) and is
similar to modern...
-
million years ago)
Orellan (early Oligocene, 33.9 - 31.8
million years ago)
Chadronian (late Eocene, 37 - 33.9
million years ago)
Indeterminate iguanid, skink...
-
species Calyptapis florissantensis. It is
known only from the Late
Eocene Chadronian age
shales of the
Florissant Formation in Colorado. The
genus and species...
- possession]) is an
extinct genus of
rhinocerotid from the late
Eocene (
Chadronian) some 35
million years ago of
North America.
Trigonias was
about 2.1 metres...
-
holotype specimen of
Menodus giganteus, and the "insoluble"
problem of
Chadronian brontothere taxonomy". New
Mexico Museum of
Natural History and Science...
-
Cypretherium coarctatum is an
early entelodont from the
Chadronian strata of the
Cypress Hills Formation in Saskatchewan.
First described by Cope in 1889...
-
Pocket gophers Temporal range:
Chadronian–present PreꞒ Ꞓ O S D C P T J K Pg N Botta's
pocket gopher (Thomomys bottae)
Scientific classification Domain:...
- were
endemic to
North America.
Fossils have been
found dating from the
Chadronian through Whitneyan ages of the
northern Great Plains of the
United States...
