Amphitheriida

Amphitheriida

Taxobox
color = red
name = "Amphitheriida"
fossil_range = Middle Jurassic
regnum = Animalia
phylum = Chordata
classis = Mammalia
subclassis = Theriiformes
unranked_ordo = Cladotheria
superordo = Dryolestoidea
ordo = Amphitheriida
ordo_authority = Prothero, 1981
familia = Amphitheriidae
familia_authority = Owen, 1846

Amphitheriida is an order of mesozoic mammals restricted to the Middle Jurassic of Britain. They were closely related to the Dryolestids but possessed five molars instead of the usual four in Dryolestida, (with the exception of the family Dryolestidae whose members possessed between 8 and 9 molars). The Amphitheriida contains one family, the Amphitheriidae.

ources

"Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure" page 395.


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Mammal classification — Over 70% of mammal species are in the orders Rodentia (blue), Chiroptera (red), and Soricomorpha (yellow) Mammalia is a class of animal within the Phylum Chordata. Mammal classification has been through several iterations since Carolus Linnaeus… …   Wikipedia

  • Dryolestoidea — Temporal range: Middle Jurassic–Early Paleocene Scientific classification Kingdom: Animalia Phylum: Chordata Class …   Wikipedia

  • Evolución de los mamíferos — Parece unánimemente aceptada la teoría de que los mamíferos proceden de los reptiles, que evolucionaron para aprovechar nichos ecológicos a los que antes no les era posible adaptarse. La evolución de éstos a partir de los sinápsidos (mamíferos… …   Wikipedia Español

  • Кладотерии — ? Кладотерии Гигантский кенгуру …   Википедия

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”