Cyclotosaurus buechneri
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Cyclotosaurus buechneri Temporal range: Late Triassic, 228–235 Ma |
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| Holotype skull | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Temnospondyli |
| Superfamily: | Capitosauroidea |
| Family: | Mastodonsauridae |
| Genus: |
Cyclotosaurus Fraas, 1889 |
| Species: | C. buechneri |
| Binomial name | |
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Cyclotosaurus buechneri Witzmann, Sachs & Nyhuis, 2016 |
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| Type strain | |
| NAMU ES/k 36053 | |
Cyclotosaurus buechneri is a species of the temnospondyl genus Cyclotosaurus from the Upper Triassic (middle Carnian) of northwestern Germany.
The type and only known specimen is a 28 cm long skull that was found in 1975 by Martin Büchner, the former director of the Natural History Museum Bielefeld, at a construction site in Bielefeld-Sieker, Germany. The specimen derives from the Stuttgart Formation and is kept in the collection of the Natural History Museum in Bielefeld. In 2016, Florian Witzmann, Sven Sachs and Christian Nyhuis provided a detailed description of the skull and established the new species, Cyclotosaurus buechneri, honoring the discoverer.
Cyclotosaurus buechneri differs from other species of Cyclotosaurus e.g. by a narrower distance between the orbitae, a more slender postorbital region and a distinct shape of the jugal. It was nearly 2 meter long and is the only unequivocal evidence of a cyclotosaur in northern Germany.
The phylogenetic position of C. buechneri within the genus Cyclotosaurus according to Witzmann et al.
C. robustus
C. buechneri
C. mordax
C. ebrachensis
C. intermedius
C. posthumus
C. hemprichi
...
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