Temporal range: Early Cretaceous
Ordosemys liaoxiensis
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Pantestudines
Clade: Testudinata
Family: Sinemydidae
Genus: Ordosemys
Brinkman & Peng, 1994
  • O. brinkmania
  • O. leios
  • O. liaoxiensis
  • O. perforata

Ordosemys is an extinct genus of sea turtle from the Cretaceous period.[1]


  1. ^ Tong, H.; Ji, S. U. A.; Ji, Q. (2004). "Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: new specimens and systematic revision". American Museum Novitates (438): 1. doi:10.1206/0003-0082(2004)438<0001:OTCFTY>2.0.CO;2. hdl:2246/2803.