Adocidae

Adocidae Temporal range: Cretaceous–Paleogene PreꞒ Ꞓ O S D C P T J K Pg N
Shell of Adocus beatus, Peabody Museum of Natural History
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Clade:	†Adocusia
Family:	†Adocidae Cope, 1870
Type species
†Emys beatus Leidy, 1865
Subfamilies
†Proadocus[1] †Adocinae †Adocus †Shachemydinae †Adocoides †Ferganemys †Isanemys †Mlynarskiella †Protoshachemys †Shachemys †Shineusemys

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.[2]

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

Taxonomy

Phylogeny modified from Danilov et al. (2013).[2] Yehguia is most likely synonymous with Sinaspideretes, and is placed outside of Adocidae here for reasons proposed in Tong, Li & Ouyang (2013).[3]

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, South Korea, Kazakhstan, Kyrgyzstan, Laos, Mexico, Mongolia, Tajikistan, Thailand, United States and Uzbekistan.

References

1. Kim, D. H.; Lee, Y.-N.; Ko, H.; Park, J.-Y.; Kim, S.-H.; Lee, S.; Jung, S.-H.; Kong, D.-Y. (2023). "The first adocid turtle in South Korea (Lower Cretaceous) and the early evolution of the Adocidae". Cretaceous Research. 151. 105665. Bibcode:2023CrRes.15105665K. doi:10.1016/j.cretres.2023.105665. S2CID 260295679.
2. 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. Bibcode:2013JVPal..33.1071D. doi:10.1080/02724634.2013.768254. S2CID 84373018. Retrieved 2020-03-07.
3. 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. Bibcode:2014GeoM..151..600T. doi:10.1017/S0016756813000575. ISSN 0016-7568. S2CID 128423062.

• Paleocene Mammals
• Recently Collected Specimen of Adocus
• E.V. Syromyatnikova and I.G. Danilov [1]
• Yale Digital Content