Species
There are over a dozen known species of Nothosaurus. The type species is N. mirabilis, named in 1834 from the Germanic Muschelkalk. Other species include N. giganteus (previously known as Paranothosaurus) from Osnabrück, Germany; N. juvenilis, also from Germany; N. edingerae from the Upper Muschelkalk and Lower Keuper; N. haasi and N. tchernovi from Makhtesh Ramon, Israel; N. cymatosauroides from the Spanish Muschelkalk; N. jagisteus from the Upper Muschelkalk of Hohenlohe, Germany; and N. youngi, N. yangjuanensis, and N. rostellatus from Guizhou, China. Several species have been described from the Lower Muschelkalk in Winterswijk, the Netherlands, including N. marchicus, N. winterswijkensis, and the recently named N. winkelhorsti.
| Cladogram of species of Nothosaurus | ||||||||||||||||||||||||||||||||||||||||||||||||
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| Klein and Albers, 2009 |
Several other species have been named but are know generally considered invalid. One such species, N. procerus, is now considered a junior subjective synonym of N. marchicus. Other species now considered invalid include N. crassus, N. oldenburgi, N. raabi, N. schroderi, and N. venustus.
Read more about this topic: Kolposaurus
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