Adocidae

The Adocidae are an extinct family of aquatic and omnivorous turtles. They are freshwater cryptodiran turtles and are mainly known from Cretaceous and Paleogene Asia and North America.[1]

Skull and shell of Glyptops ornatus, and shell of Adocus beatus

Adocidae
Shell of Adocus beatus, Peabody Museum of Natural History
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Clade: †Adocusia
Family: †Adocidae
Cope, 1870
Type species
†Emys beatus
Leidy, 1865
Subfamilies

†Adocinae

†Shachemydinae

  • †Adocoides
  • †Ferganemys
  • †Isanemys
  • †Mlynarskiella
  • †Protoshachemys
  • †Shachemys
  • †Shineusemys

Taxonomy

Phylogeny modified from Danilov et al. (2013).[1] Yehguia is most likely synonymous with Sinaspideretes, and is placed outside of Adocidae here for reasons proposed in Tong, Li & Ouyang (2013).[2]

Trionychoidea
 

Nanhsiungchelyidae

 
 
 

Yehguia(=Sinaspideretes?)

 
Adocidae
 
 

Ferganemys itemirensis

 
 

Ferganemys verzilini

 
Shachemys
 

Shachemys laosiana

 
 
 

Shachemys ancestralis

 
 

Shachemys baibolatica

 
 
 
 
Adocus
 

Adocus beatus

 
 

Adocus bossi

 
 

Adocus kirtlandius

 
 
 

Adocus inexpectatus

 
 

Adocus amtgai

 
 

Adocus aksary

 
 
 
 
 
 

Distribution

Species of this genus are present in Oligocene of Kazakhstan, Paleocene of United States, and the Cretaceous of Canada, Japan, Kazakhstan, Kyrgyzstan, Laos, Mexico, Mongolia, Tajikistan, Thailand, United States and Uzbekistan.

References

  1. Danilov, Igor G.; Syromyatnikova, Elena V.; Skutschas, Pavel P.; Kodrul, Tatyana M.; Jin, Jianhua (2013). "The first 'true'Adocus(Testudines, Adocidae) from the Paleogene of Asia" (PDF). Journal of Vertebrate Paleontology. 33 (5): 1071–1080. doi:10.1080/02724634.2013.768254. S2CID 84373018. Retrieved 2020-03-07.
  2. Tong, Haiyan; Li, Lu; Ouyang, Hui (2014). "A revision of Sinaspideretes wimani Young & Chow, 1953 (Testudines: Cryptodira: Trionychoidae) from the Jurassic of the Sichuan Basin, China". Geological Magazine. 151 (4): 600–610. doi:10.1017/S0016756813000575. ISSN 0016-7568.


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