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Adocus is an extinct genus of aquatic turtles belonging to the family Adocidae.
| Adocus Temporal range: Early Cretaceous - Oligocene,
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| Shell of Adocus beatus, Peabody Museum of Natural History | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Testudines |
| Suborder: | Cryptodira |
| Family: | †Adocidae |
| Subfamily: | †Adocinae |
| Genus: | †Adocus Cope, 1868 |
| Type species | |
| †Adocus beatus Leidy, 1865
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| Species | |
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See text | |
Description
editSpecies of the genus Adocus had flattened and smoothly contoured shells with horny sculptured plates. The shells could reach a length of at least 50 centimetres (1.6 ft) for North American species, some species like A. kohaku had carapace length of 60 centimetres (2.0 ft).[1] The largest species, A. kirtlandius had carapace reaching 113 centimetres (3.71 ft).[2] These large freshwater turtles had an omnivorous diet. They lived from the Late Cretaceous to the Paleocene in North America, but in Asia, they were also present during the Oligocene.
Distribution
editThese turtles have been found in Cretaceous to Paleogene of Canada, United States, Mongolia, China, Japan, Kazakhstan, Tajikistan, and Uzbekistan.
Species
edit- Adocus agilis
- Adocus aksary
- Adocus beatus, type species (synonyms: A. punctatus, A. lacer)
- Adocus bossi
- Adocus bostobensis
- Adocus dzhurtasensis
- Adocus firmus
- Adocus foveatus
- Adocus hesperius
- Adocus kirtlandius
- Adocus kizylkumensis
- Adocus kohaku
- Adocus lineolatus
- Adocus onerosus
- Adocus orientalis
- Adocus pravus
- Adocus sengokuensis
- Adocus syntheticus
References
edit- ^ Hirayama*, Ren; Sonoda, Teppei; Uno, Hikaru; Horie, Kenji; Tsutsumi, Yukiyasu; Sasaki, Kazuhisa; Takisawa, Shunsuke Mitsuzuka and Toshio (2022-03-14). "Adocus Kohaku, A New Species of Aquatic Turtle (Testudines: Cryptodira: Adocidae) from the Late Cretaceous of Kuji, Iwate Prefecture, Northeast Japan, with Special References to the Geological Age of the Tamagawa Formation (Kuji Group) LSID urn:lsid:zoobank.org:act:61376EEE-A386-416E-98AE-FF64FE2597A2". International Journal of Paleobiology & Paleontology. 4 (1).
- ^ Farina, Bruna M.; Godoy, Pedro L.; Benson, Roger B. J.; Langer, Max C.; Ferreira, Gabriel S. (2023). "Turtle body size evolution is determined by lineage-specific specializations rather than global trends". Ecology and Evolution. 13 (6): e10201. Bibcode:2023EcoEv..1310201F. doi:10.1002/ece3.10201. ISSN 2045-7758. PMC 10293707. PMID 37384241.
- The Paleobiology Database
- Paleocene Mammals
- Recently Collected Specimen of Adocus
- E.V. Syromyatnikova and I.G. Danilov [1]
- Yale Digital Content
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