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.


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