-
Colombia have been found,
which has
certain features diagnostic of
thylacosmilids, but much less specialized, as well as
indeterminate remains in Uruguay...
- and Apataelurus; and two
extinct lineages of
metatherian mammals, the
thylacosmilids of Spar****odonta, and deltatheroideans,
which are more
closely related...
-
replaced in the animal's lifetime,
similar to
other metatherians. In
thylacosmilids, only the
lower third premolar was replaced. The
cusps of the spar****odont...
- glyptodonts.
Native metatherian predators (including the saber-toothed
thylacosmilids) had gone
extinct by the Pliocene, and were
replaced by
North American...
-
ground sloths, glyptodonts, scimitar-toothed cats,
terror birds, and
thylacosmilids. Like
other giant extinct rodents, Josep****tigasia
predominantly ate...
-
discovery that
borhyaenids are more
closely related to
proborhyaenids and
thylacosmilids than
other spar****odonts, the
family has been
reduced to
seven species...
-
competition to
predatory metatherian spar****odonts such as
borhyaenids and
thylacosmilids,
causing the
mammalian predators to
choose forested habitats to avoid...
- machaeroidines,
hyaenodonts and even in two
groups of
metatherians (the
thylacosmilid spar****odonts and the deltatheroideans). Μαχαιροῦς, from
Ancient Gr****:...
- 4 Ma
before the
first appearance of
canids or
felids in
South America.
Thylacosmilids last
occur about 3 Ma ago and
appear to be
rarer at pre-GABI Pliocene...
-
specimen is disputed. The
presence of open-rooted
upper canines in
thylacosmilids has led to the
suggestion that
proborhyaenids are
closely related to...
