-
Colombia have been found,
which has
certain features diagnostic of
thylacosmilids, but much less specialized, as well as
indeterminate remains in Uruguay...
- of the Thylacosmiliformes, a
group also
containing the
saber toothed thylacosmilids. The
Dimartinia holotype specimen, MMH-CH 87-7-111, was
discovered in...
- have
prominent saber teeth. The
clade was
defined in 2025 to
include thylacosmilids and
their more "primitive"
closest relatives such as Dimartinia. Members...
- and Apataelurus; and two
extinct lineages of
metatherian mammals, the
thylacosmilids of Spar****odonta, and deltatheroideans,
which are more
closely related...
-
discovery that
borhyaenids are more
closely related to
proborhyaenids and
thylacosmilids than
other spar****odonts, the
family has been
reduced to
seven species...
-
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...
-
ground sloths, glyptodonts, scimitar-toothed cats,
terror birds, and
thylacosmilids. Like
other giant extinct rodents, Josep****tigasia
predominantly ate...
-
specimen is disputed. The
presence of open-rooted
upper canines in
thylacosmilids has led to the
suggestion that
proborhyaenids are
closely related to...
- machaeroidines,
hyaenodonts and even in two
groups of
metatherians (the
thylacosmilid spar****odonts and the deltatheroideans).
Unlike living big cats, which...
-
competition to
predatory metatherian spar****odonts such as
borhyaenids and
thylacosmilids,
causing the
mammalian predators to
choose forested habitats to avoid...
