Symmetrolestes

Symmetrolestes; Temporal range: Late Barremian-Late Aptian 125–115 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Symmetrolestes parvus (NSM PV 20562, holotype). A. Lingual stereo view of the dentary. B. Drawing of the jaw in approximately the same position as in A.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Symmetrodonta
Family:	†Spalacotheriidae
Genus:	†Symmetrolestes
Type species
	†Symmetrolestes parvus; Tsubamoto and Rougier, 2004

Symmetrolestes is an extinct genus of small spalacotheriid mammal^[1] from the Early Cretaceous period of Japan. The genus contains one species known as S. parvus, the type fossil (which is only fossil known) is from fluvial deposits located in the Dinosaur Quarry in the Kitadani Formation, near the city of Katsuyama which lies alongside valley of the Sugiyamagawa River. It was described by Tsubamoto and Rougier in 2004. The holotype is kept at the National Science Museum, Tokyo, Japan.

^ Han, Gang; Meng, Jin (May 24, 2016). "A new spalacolestine mammal from the Early Cretaceous Jehol Biota and implications for the morphology, phylogeny, and palaeobiology of Laurasian 'symmetrodontans'". Zoological Journal of the Linnean Society. 178 (2): 343–380. doi:10.1111/zoj.12416.

[1] Han, Gang; Meng, Jin (May 24, 2016). "A new spalacolestine mammal from the Early Cretaceous Jehol Biota and implications for the morphology, phylogeny, and palaeobiology of Laurasian 'symmetrodontans'". Zoological Journal of the Linnean Society. 178 (2): 343–380. doi:10.1111/zoj.12416.

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