Ennatosaurus

Ennatosaurus

Taxobox
name = "Ennatosaurus"
fossil_range = Middle Permian



image_width = 250px
regnum = Animalia
phylum = Chordata
subphylum = Vertebrata
classis = Synapsida
ordo = Pelycosauria
subordo = Caseasauria
familia = Caseidae
genus = Ennatosaurus
species = E. tecton
subdivision_ranks = Species
binomial = Ennatosaurus tecton
binomial_authority = Efremov, 1956

"Ennatosaurus" (meaning "the 9th reptile") was a mammal-like reptile that lived in Russia during the Wordian stage of the Permian period. It is included in the synapsid clade Caseidae in the order Pelycosauria.

"Ennatosaurus" was herbivorous, possibly using its broad forefeet to dig at plants. Like all caseids, "Ennatosaurus" had a small head compared to its wide, lizard-like body. Its mouth was lined with blunt, peg-like teeth. It lived alongside other Permian creatures, such as the herbivorous "Nyctiphruretus" and the carnivorous "Biarmosuchus".

The adult size for "Ennatosaurus" is unknown. Fossil remains show an animal about the size of a cat, but these are likely juvenile specimens, the adults growing to sizes that may have rivaled those of convert|20|ft|m|sing=on-long cousin, "Cotylorhynchus". [http://scienceblogs.com/tetrapodzoology/2007/07/the_answers_we_seek_on_goodbye.php] "Ennatosaurus" is known from only one fossil site, where several juveniles were buried simultaneously in sand. One adult skull was found among the juvenile skeletons.

References

http://scienceblogs.com/tetrapodzoology/2007/07/the_answers_we_seek_on_goodbye.php

http://www.gondwanastudios.com/info/enn.htm

http://www.palaeos.com/Paleozoic/Permian/Wordian.htm

Lucas, Spencer G. (1998) Permian Tetrapod Biochronology, "Permophiles: Newsletter of the Subcommission on Permian Stratigraphy" 32: 1733


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