Eudibamus
| Eudibamus Temporal range: Early Permian, | |
|---|---|
 | |
| Photo and illustration of the Eudibamusholotype skeleton | |
Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Subclass: | †Parareptilia |
| Order: | †Procolophonomorpha |
| Family: | †Bolosauridae |
| Genus: | †EudibamusBerman et al., 2000 |
| Type species | |
| †Eudibamus cursoris Berman et al., 2000 | |
Eudibamus is an extinctgenus of bolosauridreptile known from the Early Permian of the Free State of Thuringia in central Germany.[1][2] It was a small reptile, only 25-26 cm in length.[3] Like other bolosaurids, it was probably an agile herbivore, and it shows a long list of adaptations for bipedal (two-legged) movement. The hindlimbs had a parasagittal stance, with close-set and nearly vertical legs similar to dinosaurs and mammals. The tail and hindlimbs are very long, the forelimbs are slender, the digits are closely bundled together, and the ankle joint is hinge-like. Eudibamus is regarded as the oldest known bipedal vertebrate.[1][2]
Discovery and etymology
Eudibamus is known only from the holotypeMNG 8852, an articulated and almost complete cranial and postcranialskeleton. It was collected from the uppermost part of the Tambach Formation, dating to the Artinskian stage of the Late CisuralianSeries (or alternatively upper Rotliegend), about 284–279.5 million years ago. It was found in the Bromacker Quarry, the middle part of the Thuringian Forest, near the village of Tambach-Dietharz.[1][2]
Eudibamus was named by David S. Berman, Robert R. Reisz, Diane Scott, Amy C. Henrici, Stuart S. Sumida and Thomas Martens in 2000 and the type species is Eudibamus cursoris. The generic name means 'typical two-footed' (from Greekeu-di-bāmos, based on bainō ‘to go’). The specific name is derived from the Latincursor, or 'runner'.[1]
References
- ^ abcdDavid S. Berman; Robert R. Reisz; Diane Scott; Amy C. Henrici; Stuart S. Sumida; Thomas Martens (2000). "Early Permian Bipedal Reptile". Science. 290 (5493): 969–972. Bibcode:2000Sci...290..969B. doi:10.1126/science.290.5493.969. PMID 11062126.
- ^ abcBerman, David S.; Sumida, Stuart S.; Henrici, Amy C.; Scott, Diane; Reisz, Robert R.; Martens, Thomas (2021-07-20). "The Early Permian Bolosaurid Eudibamus cursoris: Earliest Reptile to Combine Parasagittal Stride and Digitigrade Posture During Quadrupedal and Bipedal Locomotion". Frontiers in Ecology and Evolution. 9 674173. Bibcode:2021FrEEv...974173B. doi:10.3389/fevo.2021.674173. ISSN 2296-701X.
- ^"Palaeos Vertebrates Anapsida: Bolosauridae".
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