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...

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...

Triassic. Three groups survived the extinction at the end of Triassic: Tritheledontidae and Tritylodontidae, which both survived until the Jurassic—the latter...

and descends from the non-mammalian cynodonts Tritylodontidae and Tritheledontidae by 10 million years. Distinct cranial features, especially the housing...

mammals today. It is possible that early mammaliaforms had vibrissae; Tritheledontidae, a group of Cynodonts, probably had whiskers. A common ancestor of...

both belonging to Probainognathia. The first is the insectivorous Tritheledontidae, which briefly lasted into the Early Jurassic. The second is the herbivorous...

survived into the Early Cretaceous. Another extremely mammal-like family, Tritheledontidae, are unknown later than the Early Jurassic. Mammaliaformes was the...

cynodonts were herbivorous, though some were carnivorous. The family Tritheledontidae, which first appeared near the end of the Triassic, was carnivorous...

cynodonts persisted beyond the end of the Triassic. The insectiviorous Tritheledontidae has a few records from the Early Jurassic. The Tritylodontidae, a herbiviorous...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

a non-tritheledontid ictidosaur or as a basal genus in the family Tritheledontidae. Other tritheledontids include the related Irajatherium, and two clades...

Chiniquodontidae Tritheledontidae...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

 Tritheledontidae ...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

Tritheledontidae...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

Riograndia guaibensis Bonaparte, Ferigolo & Ribeiro, 2001 (Eucynodontia, Tritheledontidae) from the Late Triassic of southern Brazil: anatomical and biostratigraphic...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

†Therioherpeton †Tricuspes †Prozostrodontidae Prozostrodon Pseudotherium †Tritheledontidae Chaliminia Diarthrognathus Elliotherium Irajatherium Pachygenelus Riograndia...

and G. W. Rougier. 2007. On Chaliminia musteloides (Eucynodontia: Tritheledontidae) from the Late Triassic of Argentina, and a phylogeny of Ictidosauria...