Stenoplacosaurus

Stenoplacosaurus; Temporal range: Eocene PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Family:	Anguidae
Subfamily:	†Glyptosaurinae
Genus:	†Stenoplacosaurus; Sullivan and Dong, 2018
Type species
	†Helodermoides mongoliensis; Sullivan, 1979

Stenoplacosaurus is an extinct genus of glyptosaurine anguid lizards from the Eocene of Inner Mongolia, China. The genus is monotypic, containing only the species Stenoplacosaurus mongoliensis.

Taxonomy[edit]

Stenoplacosaurus was originally named Helodermoides mongoliensis by Sullivan (1979) for remains found in the Shara Murun Formation of Inner Mongolia, China.^[1] In their redescription of Placosaurus, Sullivan and Auge (2006) transferred H. mongoliensis to Placosaurus, as P. mongoliensis.^[2] However, Sullivan and Dong (2018) found it to be generically distinct from the Placosaurus type species and renamed it Stenoplacosaurus.^[3]

References[edit]

^ Sullivan, Robert M. (1979). "Revision of the Paleogene genus Glyptosaurus (Reptilia, Anguidae)". Bulletin of the American Museum of Natural History. 163: 1–72.
^ Sullivan, R. M. & Augé, M. (2006). "Redescription of the holotype of Placosaurus rugosus Gervais 1848–1852 (Squamata, Anguidae, Glyptosaurinae) from the Eocene of France and a revision of the genus". Journal of Vertebrate Paleontology. 26: 127–132. doi:10.1671/0272-4634(2006)26[127:ROTHOP]2.0.CO;2. JSTOR 4524542.
^ Sullivan, Robert M. & Dong, L. (2018). "Stenoplacosaurus mongoliensis, a new generic name for "Placosaurus" mongoliensis (Anguidae, Glyptosaurinae) from the Shara Murun Formation, Nei Mongol (Inner Mongolia), China". New Mexico Museum of Natural History and Science. 79: 691–694.

[1] Sullivan, Robert M. (1979). "Revision of the Paleogene genus Glyptosaurus (Reptilia, Anguidae)". Bulletin of the American Museum of Natural History. 163: 1–72.

[2] Sullivan, R. M. & Augé, M. (2006). "Redescription of the holotype of Placosaurus rugosus Gervais 1848–1852 (Squamata, Anguidae, Glyptosaurinae) from the Eocene of France and a revision of the genus". Journal of Vertebrate Paleontology. 26: 127–132. doi:10.1671/0272-4634(2006)26[127:ROTHOP]2.0.CO;2. JSTOR 4524542.

[3] Sullivan, Robert M. & Dong, L. (2018). "Stenoplacosaurus mongoliensis, a new generic name for "Placosaurus" mongoliensis (Anguidae, Glyptosaurinae) from the Shara Murun Formation, Nei Mongol (Inner Mongolia), China". New Mexico Museum of Natural History and Science. 79: 691–694.

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