- The
Whitneyan North American Stage on the
geologic timescale is the
North American faunal stage according to the
North American Land
Mammal Ages chronology...
-
Arikareean (late
Oligocene -
early Miocene, 29.5 - 18.5
million years ago)
Whitneyan (mid-Oligocene, 31.8 - 29.5
million years ago)
Orellan (early Oligocene...
- also the base of
foram biozone P21b). The
Rupelian overlaps the Orellan,
Whitneyan and
lower Arikareean North American Land
Mammal Ages, the
upper Mustersan...
-
Nanosmilus is a
nimravid from the
Oligocene (
Whitneyan to
Arikareean stages) of Nebraska. As a
member of Feliformia, it is
related to the superficially...
-
North America.
Fossils have been
found dating from the
Chadronian through Whitneyan ages of the
northern Great Plains of the
United States and
southern Canada...
-
Merycoidodontinae (the oreodonts),
endemic to
North America during the
Whitneyan stage of the Oligocene-Miocene
epochs (33—20.6 mya)
existing for approximately...
- dogs). They were
endemic to
North America and from the
Oligocene epoch (
Whitneyan stage) to the
Miocene (Early Barstovian)
living ~33.3–5.3 Ma, existing...
-
faunas from ~36-35 Ma to 28.4 Ma, with the
lineage continuing into the
Whitneyan,
where it is
known from the
Protoceras channels of
South Dakota, represented...
-
Formation Stratigraphic range: Late Eocene-Early
Oligocene (Chadronian-
Whitneyan) ~37.2–30.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N
White River Badlands in South...
-
Fauna Anxiety Butte. Orellian. 14.
Rodent Hill
Local Fauna Whitneyan; 15.
Anxiety Butte,
Whitneyan: 16.
Kealey Springs Local Fauna,
early Arikareean; 17....
