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Strenulagus (Mammalia: Lagomorpha) from the Middle Eocene Irdin Manha Formation of the Erlian Basin, Nei Mongol, China
Author(s) -
Łucja FOSTOWICZFRELDC,
Chuankui LI,
Qian LI,
Jin MENG,
Yuanqing WANG
Publication year - 2015
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12391
Subject(s) - structural basin , postcrania , paleontology , articulation (sociology) , geology , inner mongolia , china , geography , archaeology , taxon , political science , law , politics
New material of Strenulagus Solaris , a stem lagomorph, from the lower part of the Middle Eocene Irdin Manha Formation at the Irdin Manha and Huheboerhe localities, Erlian Basin, Nei Mongol, China includes remains of isolated cheek teeth, fragmentary upper incisors (dI2) and postcranial elements, reported from the species for the first time. The tarsal bones display advanced features, such as a wide calcaneofibular articulation surface and, along with an increase in hypsodonty, the new data document the early stage of lagomorph evolution in the Middle Eocene of the Erlian Basin. This finding is stratigraphically well constrained and probably predates that of the type material of S. Solaris from the Khaychin Formation, Bugin‐Tsav Basin, Mongolia.