''Rosieria'' is an extinct

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of dwarf

cynodont Cynodontia () is a clade of eutheriodont therapsids that first appeared in the Late Permian (approximately 260 Megaannum, mya), and extensively diversified after the Permian–Triassic extinction event. Mammals are cynodonts, as are their extin ...

s from the

Late Triassic The Late Triassic is the third and final epoch (geology), epoch of the Triassic geologic time scale, Period in the geologic time scale, spanning the time between annum, Ma and Ma (million years ago). It is preceded by the Middle Triassic Epoch a ...

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

. It belongs to the family Traversodontidae, a herbivorous group known mainly from

Gondwana Gondwana ( ; ) was a large landmass, sometimes referred to as a supercontinent. The remnants of Gondwana make up around two-thirds of today's continental area, including South America, Africa, Antarctica, Australia (continent), Australia, Zea ...

. The type species ''R. delsatei'' was named in 1997 on the basis of a few isolated postcanine teeth found in Saint-Nicolas-de-Port in northeastern France. These teeth were found alongside the teeth of many other cynodonts, including those of '' Hahnia'', '' Gaumia'', and '' Maubeugia''. The small size of the teeth in Saint-Nicolas-de-Port suggest ''R. delsatei'' and other species were dwarf cynodonts. Most teeth in the locality belong to insectivores like dromatheriids, while those of ''R. delsatei'' and other herbivorous cynodonts are very rare.

References

Traversodontidae Late Triassic synapsids of Europe Triassic France Fossils of France Fossil taxa described in 1997 Taxa named by Pascal Godefroit {{paleo-cynodont-stub