Amphitheriidae

Amphitheriidae; Temporal range: Middle Jurassic, 176–161 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Clade:	Cladotheria
Order:	†Amphitheriida; Prothero, 1981
Family:	†Amphitheriidae; Owen, 1846
Genera
	†Amphitherium; †Palaeoxonodon;

Amphitheriidae is a family of Mesozoic mammals restricted to the Middle Jurassic of Britain, with indeterminate members also possibly known from the equivalently aged Itat Formation in Siberia and the Anoual Formation of Morocco. They were members of Cladotheria, more derived than members of Dryolestida, and forming a close relationship with Peramuridae.^[1] Amphitheriidae is the only family of the order Amphitheriida.

Classification[]

Mammalia
- Theriiformes
  - Holotheria
    - Trechnotheria
      - Cladotheria
        Dryolestoidea
        Dryolestida
        
        Amphitheriidae
        Palaeoxonodon
        
        Amphitherium

References[]

^ Panciroli E; Roger B.J. Benson; Richard J. Butler (2018). "New partial dentaries of amphitheriid mammalian Palaeoxonodon ooliticus from Scotland, and posterior dentary morphology in early cladotherians". Acta Palaeontologica Polonica. in press. doi:10.4202/app.00434.2017.

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.
Close RA., Davis BM., Walsh S., Wolniewicz AS., Friedman M. and Benson RB. 2016. A lower jaw of Palaeoxonodon from the Middle Jurassic of the Isle of Skye, Scotland, sheds new light on the diversity of British stem therians. Palaeontology, 59, 155-169

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[Panciroli-1] Panciroli E; Roger B.J. Benson; Richard J. Butler (2018). "New partial dentaries of amphitheriid mammalian Palaeoxonodon ooliticus from Scotland, and posterior dentary morphology in early cladotherians". Acta Palaeontologica Polonica. in press. doi:10.4202/app.00434.2017.

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