Sauravus

Sauravus is an extinct genus of nectridean lepospondyl within the family Scincosauridae.

Sauravus
Temporal range: Late Carboniferous to Early Permian, 305–286 Ma
The holotype of Sauravus costei
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subclass: †Lepospondyli
Order: †Nectridea
Family: †Scincosauridae
Genus: †Sauravus
Thévenin, 1906
Type species
†Sauravus costei
Thévenin, 1906
Species

†S. costei Thévenin, 1906
†S. cambrayi Thévenin, 1910
†S. spinosus? Civet, 1982

Species
The holotype of Sauravus cambrayi

The type species of Sauravus, Sauravus costei, is known from Blanzy, a town in the Saône-et-Loire department of France.[1] This town and its adjacent community Montceau-les-Mines possess containing abundant Carboniferous fossils. These fossils are believed to have been from the Stephanian B stage of the Late Carboniferous, approximately 305 to 304 million years ago.[2]

Sauravus cambrayi is known from Les Télots, a mine near Autun, Saône-et-Loire, France.[3] Télots is the type locality of the Autunian stage, a period of time which is believed to correspond to part of the early Permian period. The geological formation which Télots fossils belong to is known as the Millery Formation. The specific part of the Permian which this formation belongs to was unclear for many years. In 2014, Schneider et al. suggested that the Millery Formation dated to the middle Artinskian age, about 290 to 286 million years ago.[4]

Sauravus spinosus is a rename of Scincosaurus spinosus, a Montceau-les-Mines scincosaurid described by C. Civet in 1982.[5] Although that author considered the species to belong to Scincosaurus, in 1994 Jean-Michel Dutuit and D. Heyler believed considered it a species of Sauravus.[6]

See also
  • Prehistoric amphibian
  • List of prehistoric amphibians

References
  1. Thévenin, Armand (1906). "Amphibiens et reptiles du terrain Houiller de France". Annales de paléontologie. 1: 12–19.
  2. Lojka, Richard; Drábková, Jana; Zajíc, Jaroslav; Sýkorová, Ivana; Franců, Juraj; Bláhová, Anna; Grygar, Tomáš (2009-09-01). "Climate variability in the Stephanian B based on environmental record of the Mšec Lake deposits (Kladno–Rakovník Basin, Czech Republic)". Palaeogeography, Palaeoclimatology, Palaeoecology. 280 (1–2): 78–93. doi:10.1016/j.palaeo.2009.06.001. ISSN 0031-0182.
  3. Thévenin, Armand (1910). "Les plus anciens quadrupeds de France". Annales de paléontologie. 5: 43–46.
  4. Spindler, Frederik (July 9, 2015). "The basal Sphenacodontia – systematic revision and evolutionary implications" (PDF). Dissertation.
  5. Civet, C. (1982). "Étude d'un nouvel amphibien fossile du bassin houiller de Montceau-les-Mines, Scincosaurus spinosus nov. sp". La Physiophile. Société d'Études des Sciences Naturelles et Historiques de Montceau-les-Mines. 96: 73–79.
  6. Dutuit, Jean-Michel; Heyler, D. (1994). "Rachitomes, Lépospondyles et Reptiles due Stephanien (Carbonifere superieur) du basin de Montceau-les-Mines (Massif central, France)". Mémoires de la Section des Sciences. 12: 249–266.


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