Stenotosauridae
Encyclopedia
Stenotosauridae is an extinct family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 of mastodonsauroid
Mastodonsauroidea
The Mastodonsauroidea are an extinct superfamily of temnospondyl amphibians known from the Triassic and Jurassic. Fossils belonging to this superfamily have been found in North America, Greenland, Europe, Asia, and Australia...

 temnospondyls. It has included genera such as Stenotosaurus
Stenotosaurus
Stenotosaurus is an extinct genus of mastodonsauroid temnospondyl within the family Mastodonsauridae.-See also:* Prehistoric amphibian* List of prehistoric amphibians...

, Wellesaurus
Wellesaurus
Wellesaurus is an extinct genus of mastodonsauroid temnospondyl within the family Mastodonsauridae.-See also:* Prehistoric amphibian* List of prehistoric amphibians...

, and Procyclotosaurus
Procyclotosaurus
Procyclotosaurus is an extinct genus of stenotosaurid capitosaurian temnospondyl. The type species is P. stantonensis. In 1904, English paleontologist Arthur Smith Woodward described it as a species of Capitosaurus, C. stantonensis, based on a partial skull known as R 3174. In 1958, the species was...

.
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