Tethysaurus

Name: Tethysaurus ‭(‬Tethys lizard‭).
Phonetic: Teh-fis-sore-us.
Named By: Nathalie Bardet,‭ ‬Xabier Pereda Suberbiola‭ & ‬Nour-Eddine Jalil‭ ‬-‭ ‬2003.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Squamata,‭ ‬Mosasauridae,‭ ‬Russellosaurinae.
Species: T.‭ ‬nopscai‭ (‬type‭)‬.
Diet: Carnivore.
Size: 3‭ ‬meters long.
Known locations: Morocco,‭ ‬Errachidia Province.
Time period: Early Turonian of the Cretaceous.
Fossil representation: Skull and almost complete post cranial skeleton.

       Tethysaurus is a primitive‭ (‬basal‭) ‬mosasaur that is considered to be related to Russelosaurus from North America and Yaguarasaurus from South America.‭ ‬Like these other two mosasaurs,‭ ‬Tethysaurus has a mixture of both primitive and advanced features that make it‭ ‬a‭ ‬primitive relative to other later mosasaur groups,‭ ‬although not as primitive as Dallasaurus which is thought to be one the most primitive mosasaurs known.‭
       Tethysaurus was named after Tethys,‭ ‬the ancient Greek goddess of the sea who‭ ‬was also the inspiration for the name of the Tethys Ocean that once separated Laurasia‭ (‬the northern continents‭) ‬from Gondwana‭ (‬the southern continents‭)‬.‭ ‬The species name,‭ ‬T.‭ ‬nopscai,‭ ‬is in honour of the Hungarian palaeontologist Baron Ferenc Nopsca.




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