Incertae, Vacelet, Pérez & Hooper, 2002

Ting, Suyin, Wang, Xiaoming & Meng, Jin, 2023, Cranial And Postcranial Morphology Of The Insectivoran-Grade Mammals Hsiangolestes And Naranius (Mammalia, Eutheria) With Analyses Of Their Phylogenetic Relationships, Bulletin of the American Museum of Natural History 2023 (463), pp. 1-129 : 15

Order Incertae sedis

Family Sarcodontidae Lopatin and Kondrashov, 2004 , new family

INCLUDED GENERA: Hsiangolestes Zheng and Huang, 1984 ; Sinosinopa Qi, 1987 ; Sarcodon Matthew and Granger, 1925 ; Prosarcodon McKenna et al., 1984 ; Metasarcodon Lopatin and Kondrashov, 2004 .

GEOGRAPHIC DISTRIBUTION AND AGES: Hsiangolestes (Early Eocene Lingcha Formation, Hengyang Basin, Hunan Province, China); Sinosinopa (Middle Eocene Arshanto Formation, Erlian, Inner Mongolia, China); Sarcodon (Late

Paleocene Gashato Formation, Nemegt Basin, Mongolia, and Early Eocene Bayan Ulan Formation, Erlian, Inner Mongolia, China); Prosarcodon (Late Paleocene Fangou Formation, Shimen, Lonan County, Shaanxi Province, China); Metasarcodon (Middle Eocene Khaychin Formation, southwestern Mongolia).

DIAGNOSIS: Dental formula 3.1.4.3(2)/3.1.4.3(2), presence of two molars in Prosarcodon (char. 70), presence of diastema posterior to p2 (char. 56), M1 narrower than M 2 in width (char. 73), metastylar lobe more labially situated (char. 74), paraconid crestiform (char. 112), trigonid wide open (but narrow in Hsiangolestes ) (char. 114), coronoid process broad, roughly two molar lengths (char. 134), foramen ovale situated in alisphenoid (char. 224), and absence of basisphenoid tympanic process (char. 242).