- to an
order of
their own, the Arctocyonia. Some have
suggested that
arctocyonids are
ancestral to modern-day artiodactyls, or that they form a sister...
-
closely related to
Loxolophus (another
arctocyonid) and to pantodonts.
Arctocyon was
among the
largest arctocyonids, if not the largest. A.
primaevus measured...
-
fused along the
length of the forelimb;
early ungulates, such as the
arctocyonids, did not
share this
unique skeletal structure. The
fusion of the radius...
-
forms were mammals: hyaenodonts, oxyaenids, entelodonts, ptolemaiidans,
arctocyonids and mesonychians,
representing a
great diversity of
eutherian carnivores...
-
members of Ferungulata,
including hyaenodonts, oxyaenids, mesonychids,
arctocyonids and the stem-relatives of
perissodactyls (like Cambaytherium). This synapomorphy...
- when
Frederick Szalay suggested that they
either evolved from the same
arctocyonid ancestors or that they were an
example of
convergent evolution. Paratriisodon...
-
titanotheres are
preserved from this time.
Later inhabitants would include arctocyonids, insectivores, multituberculates, pantodonts, primates, and taeniodonts...
-
other arctocyonids.
Anacodon may have been
trending away from
carnivory and
towards a more
herbivorous diet.
Anacodon is
unusually robust by
arctocyonid standards...
-
Mesonychians are
proposed to be a
sister group to carnivoramorphs,
while arctocyonids were polyphyletic, with
genera Arctocyon and
Loxolophus as a
sister taxa...
-
Sigynorum is an
extinct genus of
arctocyonid that
lived during the
Puercan North American land
mammal age.
Sigynorum magnadivisus is
known from the Fort...
