Manchurochelys
| Manchurochelys | ||||||||||||
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Manchurochelys |
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| Temporal occurrence | ||||||||||||
| Lower Cretaceous | ||||||||||||
| Locations | ||||||||||||
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Jehol Group , Liaoning , China |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Manchurochelys | ||||||||||||
| Endo & Shikama , 1942 | ||||||||||||
Manchurochelys is the only well-known genus of tortoises in the Jehol biota. She lived in what is now northern China during the Lower Cretaceous.
features
Manchurochelys had a flat skull , small in the nasal area , but without supramarginal scales. It also had a very flat armor , a cruciform belly armor, but no mesoplastra. Manchurochelys may have lived in the Lower Cretaceous lakes of northern China and lived like today's turtles .
species
There are three known types:
- Manchurochelys manchoukuoensis ENDO & SHIKAMA, 1942 was discovered during the Second World War . The holotype of this species was lost during the war.
- Manchurochelys donghai MA, 1986 was found in a coal mine in Jixi , which perhaps belongs to a higher layer horizon than the Jehol Biota.
- Manchurochelys liaoxiensis JI, 1995 comes from the Jianshanou layer of the Jehol Biota near Beipiao .
literature
- Mee-Mann Chang (Ed.): The Jehol Fossils. The Emergence of Feathered Dinosaurs, Beaked Birds and Flowering Plants. Academic Press, Amsterdam et al. 2008, ISBN 978-0-12-374173-8 .