Amphitheriida
Amphitheriida Temporal range: Middle Jurassic, 176โ161Ma | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Subclass: | Theriiformes |
(unranked): | Cladotheria |
Superorder: | Dryolestoidea |
Order: | Amphitheriida Prothero, 1981 |
Family: | Amphitheriidae 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.
Further reading
- Zofia Kielan-Jaworowska, Richard L. Cifelli, and Zhe-Xi Luo, Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure (New York: Columbia University Press, 2004), 14,395.