Dryolestidae (Redirected from Dryolestids)

Dryolestidae
Temporal range: Middle Jurassic–Early Cretaceous
Lower jaw of namesake species Dryolestes priscus
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Dryolestida
Family: Dryolestidae
Marsh, 1879
Genera

Dryolestidae is an extinct family of Mesozoic mammals, known from the Middle Jurassic to the Early Cretaceous of the North Hemisphere. The oldest known member, Anthracolestes, is known from the Middle Jurassic Itat Formation of Western Siberia, but most other representatives are known from the Late Jurassic of North America and the Late Jurassic and Early Cretaceous of Europe. Most members are only known from isolated teeth and jaw fragments. Like many other groups of early mammals, they are thought to have been insectivores. They are generally classified in Cladotheria, meaning that they are considered to be more closely related to marsupials and placentals than to monotremes. They are placed as part of the broader Dryolestida, which also includes the (possibly paraphyletic) Paurodontidae, and also sometimes the South American-Antarctic Meridiolestida, which are often considered unrelated cladotherians. Dryolestidae taxon is not based on a phylogenetic definition, but instead on the possession of unequal roots for the molars of the lower jaw. Additionally, the clade is distinguished by hypsodonty in lower molars, and uneven labio-lingual height for the alveolar borders of the dentary.

Cladogram

Dryolestida

Vincelestes

Euthlastus

Paurodon

Drescheratherium

Henkelotherium

Tathiodon

Groebertherium

Dryolestidae
Kurtodontinae

Crusafontia

Achyrodon

Phascolestes (incl Kurtodon, Peraspalax)

Dryolestinae

Amblotherium gracile

Amblotherium pusillum

Krebsotherium

Laolestes

Dryolestes priscus

Dryolestes leiriensis

Guimarotodus



This page was last updated at 2024-01-31 09:53 UTC. Update now. View original page.

All our content comes from Wikipedia and under the Creative Commons Attribution-ShareAlike License.


Top

If mathematical, chemical, physical and other formulas are not displayed correctly on this page, please useFirefox or Safari