Английская Википедия:Eurycleidus
Шаблон:Short description Шаблон:Automatic taxobox
Eurycleidus is an extinct genus of large-bodied rhomaleosaurid known from the Early Jurassic period (most likely earliest Hettangian stage) of the United Kingdom. It contains a single species, E. arcuatus.[1] Like other plesiosaurs, Eurycleidus probably lived on a diet of fish, using its sharp needle-like teeth to catch prey. Its shoulder bones were fairly large, indicating a powerful forward stroke for fast swimming.
Phylogeny
Most phylogenetic analyses find the type species of the genus, Eurycleidus arcuatus, to be a relatively basal rhomaleosaurid.[1][2][3][4] A second species, E. megacephalus (Stutchbury, 1846 [originally Rhomaleosaurus megacephalus]), was reassigned to this genus by Smith (2007).[2] However, most analyses find E. megacephalus to represent an unnamed genus, which is distinct from both Eurycleidus and Rhomaleosaurus.[3][4][5] E. megacephalus was moved to its own genus Atychodracon by Adam Smith in 2015.[6]
The cladogram below shows E. arcuatus phylogenetic position among other plesiosaurs following Benson et al. (2012).[1]
See also
References
Шаблон:Plesiosauria Шаблон:Taxonbar
- Английская Википедия
- Rhomaleosaurids
- Early Jurassic plesiosaurs of Europe
- Fossil taxa described in 1922
- Taxa named by Charles William Andrews
- Sauropterygian genera
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