Sinemydidae

Sinemydidae ; Temporal range: Oxfordian?Paleocene Pre? ? O S D C P T J K Pg N
	Jeholochelys
	Manchurochelys
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade :	Pantestudines
Clade :	Testudinata
Clade :	Perichelydia
Family:	† Sinemydidae ; Yeh, 1963
Genera
	See text

Sinemydidae is an extinct family of turtles from Cretaceous to Paleocene deposits in Asia and North America. ^[1]^[2] Their exact position is engimatic, they have alternatively been considered stem-group cryptodires , but also "crownward stem-turtles" alongside Macrobaenidae , Paracryptodira , Xinjiangchelyidae , Thalassochelydia and Sandownidae outside of crown Testudines.

Genera [ edit ]

Dracochelys ^[3] Lianmugin Formation , China, Early Cretaceous (Aptian-Albian)
Hongkongochelys ^[3] Upper Shaximiao Formation , China, Middle-Late Jurassic
Jeholochelys ^[3] Jiufotang Formation , China, Early Cretaceous (Aptian)
Liaochelys ^[1]^[3] Jiufotang Formation, China, Early Cretaceous (Aptian)
Manchurochelys ^[3] Yixian Formation , China, Early Cretaceous (Aptian)
Ordosemys ^[3]
- O . leios Luohandong Formation , China, Early Cretaceous
- O . liaoxiensis Chengzihe Formation , China, Early Cretaceous (Aptian)
- O . brinkmania Lianmugin Formation, China, Early Cretaceous (Aptian-Albian)
- O . perforata Khulsangol Formation , Mongolia, Early Cretaceous (Albian)
- O . donghai Chengzihe Formation , China, Early Cretaceous (Aptian-Albian)
Sinemys ^[3]
- † Sinemys brevispinus Tong and Brinkman 2012 Laohongdong Formation , China, Early Cretaceous
- † Sinemys chabuensis Ji and Chen 2018 Jingchuan Formation , China, Early Cretaceous ( Barremian )
- † Sinemys gamera Brinkman and Peng 1993 Luohandong Formation , China, Early Cretaceous ( Valanginian - Hauterivian )
- † Sinemys lens Wiman 1930 Mengyin Formation , China, Early Cretaceous ( Berriasian -Valanginian)
Wuguia ^[3]
- † Wuguia efremovi Khozatsky 1996 Hutubei Formation , China, Hauterivian/Barremian Lianmuxin Formation, China, Early Cretaceous (Aptian-Albian)
- † Wuguia hutubeiensis Matzke et al. 2004 Hutubei Formation, China, Hauterivian/Barremian
Xiaochelys ^[1]^[3] Lianmugin Formation, China, Early Cretaceous (Aptian-Albian)
Yumenemys ^[3] Hui-Hui-P'u, China, Late Cretaceous

References [ edit ]

^ ^a ^b ^c C.-F. Zhou; M. Rabi (2015). "A sinemydid turtle from the Jehol Biota provides insights into the basal divergence of crown turtles" . Scientific Reports . 5 : 16299. Bibcode : 2015NatSR...516299Z . doi : 10.1038/srep16299 . PMC 4639786 . PMID 26553740 .
^ "Sinemydidae" . Fossilworks . Retrieved 17 December 2021 .
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "Sinemydidae" . Fossilworks . Retrieved 17 December 2021 .

External links [ edit ]

"Chelonii: Centrocryptodira" . palaeos.com . Archived from the original on April 5, 2023.

This article about a prehistoric turtle is a stub . You can help Wikipedia by expanding it .

[Zhou2015-1] C.-F. Zhou; M. Rabi (2015). "A sinemydid turtle from the Jehol Biota provides insights into the basal divergence of crown turtles" . Scientific Reports . 5 : 16299. Bibcode : 2015NatSR...516299Z . doi : 10.1038/srep16299 . PMC 4639786 . PMID 26553740 .

[2] "Sinemydidae" . Fossilworks . Retrieved 17 December 2021 .

[fw2019-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "Sinemydidae" . Fossilworks . Retrieved 17 December 2021 .

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