- (Early Pliocene, ~3.3Ma).
Around the Miocene-Pliocene
boundary (~5 Ma),
tremarctines,
along with
other ursids,
experienced an
explosive radiation in diversity...
- ursine, the
Eurasian cave bear last
shared a
common ancestor with the
tremarctine Arctodus circa 13.4
million years ago.
Fossils of
Arctodus pristinus...
- (Early Pliocene, ~3.3 Ma).
Around the Miocene-Pliocene
boundary (~5 Ma)
Tremarctines,
along with
other ursids,
experienced an
explosive radiation in diversity...
- hdl:2246/1321. Tedford,
Richard H.; Martin,
James (2001). "Plionarctos, a
tremarctine bear (Ursidae: Carnivora) from
western North America".
Journal of Vertebrate...
- respectively) and the
Florida spectacled bear (Tremarctos florid****).
These tremarctine bears evolved from
bears that had
emigrated from Asia to the Americas...
-
americanum was
present with the
megalonychid Megalonyx wheatleyi, the
tremarctine bear
Arctodus pristinus, the
jaguar (Panthera onca), the
felid Miracinonyx...
-
entepicondylar foramen,
which is
absent in the two
groups with the
exception of
tremarctine bears like Tremarctos.
Other traits like the size and
outline of the...
- thumb. Its
competitors during its time
period were
ailuropodine and
tremarctine bears,
nimravid false cats, and
early canids and felids. Peigné, S.;...
-
survived in
their adopted homes, e.g.
South American tapirs, camelids, and
tremarctine bears (cougars and
jaguars may have been
temporarily reduced to South...
- The
spectacled bear, a
tremarctine ursid that
potentially fills a
similar niche to the now
extinct Chapalmalania....
