Varanosaurus

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Varanosaurus
Temporal range: Early Permian, 290–273  Ma
Varanosaurus NT small.jpg
A reconstruction of Varanosaurus acutirostris
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Family: Ophiacodontidae
Genus: Varanosaurus
Broili, 1904
Type species
Varanosaurus acutirostris
Broili, 1904
Species [1]
  • V. acutirostris Broili 1904 (type)
  • V. wichitaensisRomer 1937

Varanosaurus ('monitor lizard') is an extinct genus of early ophiacodontid synapsid that lived during the Artinskian [2] and Kungurian ages of the Permian. [3]

Contents

Description

Varanosaurus acutirostris being devoured by Dimetrodon limbatus Dimetr incis22DB.jpg
Varanosaurus acutirostris being devoured by Dimetrodon limbatus

As its name implies, Varanosaurus may have looked superficially similar to present-day monitor lizards [ citation needed ], though not related at all.

Varanosaurus had a flattened, elongated skull and a pointed snout with a row of sharp teeth, including two pairs of conspicuous pseudocanines, implying that it was an active predator. [4]

Varanosaurus probably lived in swamps, competing with the larger Ophiacodon for food.[ citation needed ]

Classification

Below is a cladogram modified from the analysis of Benson (2012): [5]

See also

References

  1. "Varanosaurus". Fossilworks. Retrieved 17 December 2021.
  2. A. S. Romer. 1937. New genera and species of pelycosaurian reptiles. Proceedings of the New England Zoölogical Club16:89-95
  3. R. R. Reisz. 1986. Pelycosauria. Handbuch der Paläoherpetologie / Encyclopedia of Paleoherpetology17A:1-102
  4. Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 187. ISBN   978-1-84028-152-1.
  5. Benson, R.J. (2012). "Interrelationships of basal synapsids: cranial and postcranial morphological partitions suggest different topologies". Journal of Systematic Palaeontology. 10 (4): 601–624. doi:10.1080/14772019.2011.631042. S2CID   84706899.

Further reading