-
Tritheledontidae, the
tritheledontids or ictidosaurs, is an
extinct family of
small to medium-sized (about 10 to 20 cm long) cynodonts. They were highly...
-
cynodonts including mammaliaforms and
their closest relatives such as
Tritheledontidae and Tritylodontidae. It was
erected as a node-based
taxon by Liu and...
- Tri****ic.
Three groups survived the
extinction at the end of Tri****ic:
Tritheledontidae and Tritylodontidae,
which both
survived until the Jur****ic—the latter...
-
related to or
descended from traversodontids), and the tiny, shrew-like,
Tritheledontidae,
related to the Mammaliaformes. The
tritheledontids died out during...
- few
genera that do not
belong to
either of
these groups. The
family Tritheledontidae has also been
placed in
Mammaliamorpha by some
phylogenetic analyses...
- and
descends from the non-mammalian
cynodonts Tritylodontidae and
Tritheledontidae by 10
million years.
Distinct cranial features,
especially the housing...
- both
belonging to Probainognathia. The
first is the
insectivorous Tritheledontidae,
which briefly lasted into the
Early Jur****ic. The
second is the herbivorous...
-
mammals today. It is
possible that
early mammaliaforms had vibrissae;
Tritheledontidae, a
group of cynodonts,
probably had whiskers. A
common ancestor of...
-
cynodonts persisted beyond the end of the Tri****ic. The
insectiviorous Tritheledontidae has a few
records from the
Early Jur****ic. The Tritylodontidae, a herbiviorous...
- a non-tritheledontid
ictidosaur or as a
basal genus in the
family Tritheledontidae.
Other tritheledontids include the
related Irajatherium, and two clades...
