ammonites
Subclass Theria Parker and Haswell 1897 (mammal)

Mammalia - Theriiformes

Full reference: T. J. Parker and W. A. Haswell. 1897. A Text-Book of Zoology. Volume II. MacMillan and Company, London xx-680

Parent taxon: Boreosphenida according to Z.-X. Luo et al. 2011

Sister taxa: Aegialodon, Asiatherium, Deltatheridium, Didelphis, Erinaceus, Hypomylos, Montanalestes, Paleomolops, Picopsidae, Prokennalestes, Tribosphenida, Tribotherium, Zygiocuspis

Subtaxa: Eupantotheria, Eutheria, Kuehneotheria, Metatheria, Pantotheria, Paratheria, Symmetrodonta, Tribotheria

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Ecology: scansorial insectivore