Mystriosaurus

Mystriosaurus is an extinct genus of teleosaurid crocodyliform from the Early Jurassic (Toarcian). Fossil specimens have been found in the Whitby Mudstone of England and Posidonia Shale of Germany. The only known species, M. laurillardi, exceeded 4 metres (13 ft) in length.[1]

Mystriosaurus Temporal range: Early Jurassic Toarcian PreꞒ Ꞓ O S D C P T J K Pg N
Assigned specimen (holotype of the junior synonym Steneosaurus brevior)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Suborder:	†Thalattosuchia
Family:	†Teleosauridae
Genus:	†Mystriosaurus Kaup, 1834
Species:	†M. laurillardi
Binomial name
†Mystriosaurus laurillardi Kaup, 1834
Synonyms
†"Steneosaurus" brevior Blake, 1876 Engyommasaurus Kaup, 1834

Holotype skull

A 2019 phylogenetic analysis found Mystriosaurus to be distinct from Steneosaurus.[2]

See also

• List of marine reptiles

References

1. "Sachs_Mystiosaurus". Sachs. Retrieved 2011-09-12.
2. Sachs, S.; Johnson, M.M.; Young, M.T.; Abel, P. (2019). "The mystery of Mystriosaurus: Redescribing the poorly known Early Jurassic teleosauroid thalattosuchians Mystriosaurus laurillardi and Steneosaurus brevior" (PDF). Acta Palaeontologica Polonica. 64 (3): 565–579. doi:10.4202/app.00557.2018.