Assigned specimen (holotype of the junior synonym Steneosaurus brevior)
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Clade:
Archosauria
Clade:
Pseudosuchia
Clade:
Crocodylomorpha
Clade:
Crocodyliformes
Suborder:
†Thalattosuchia
Family:
†Teleosauridae
Genus:
†Mystriosaurus Kaup, 1834
Species:
†M. laurillardi
Binomial name
†Mystriosaurus laurillardi
Kaup, 1834
Synonyms
†"Steneosaurus" brevior Blake, 1876
EngyommasaurusKaup, 1834
Holotype skull
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]
A 2019 phylogenetic analysis found Mystriosaurus to be distinct from Steneosaurus.[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.
(2019). "The mystery of Mystriosaurus: Redescribing the poorly known Early Jurassic teleosauroid thalattosuchians Mystriosaurus laurillardi and Steneosaurus...
more diverse than machimosaurids, with generalist coastal predators (Mystriosaurus), long-snouted marine piscivores (Bathysuchus), and potentially even...
the genus Mystriosaurus, as M. multiscrobiculatus. However, Westphal (1961) found M. multiscrobiculatus generically distinct from Mystriosaurus and renamed...
(2019). "The mystery of Mystriosaurus: Redescribing the poorly known Early Jurassic teleosauroid thalattosuchians Mystriosaurus laurillardi and Steneosaurus...
short snouts compared to their relatives. This makes it similar to Mystriosaurus, Neosteneosaurus and Machimosaurus among others, which are considered...
(2019). "The mystery of Mystriosaurus: Redescribing the poorly known Early Jurassic teleosauroid thalattosuchians Mystriosaurus laurillardi and Steneosaurus...
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