Biology:Apsisaurus
| Apsisaurus Temporal range: Early Permian
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Family: | †Varanopidae |
| Genus: | †Apsisaurus Laurin, 1991 |
| Species: | †A. witteri
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| Binomial name | |
| †Apsisaurus witteri Laurin, 1991
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Apsisaurus is an extinct genus of Early Permian varanopid synapsids known from Texas of the United States . It was first named by Michel Laurin in 1991 and the type species is Apsisaurus witteri. Apsisaurus witteri is known from the holotype MCZ 1474, a three-dimensionally preserved partial skeleton including an incomplete skull and mandibles. The skull roof of Archeria is also articulated to the postcranial skeleton. It was collected in the Archer City Bonebed 1 site, from the Archer City Formation of the Wichita Group, dating to the Early Permian epoch.[1] Apsisaurus was formerly assigned as an "eosuchian" diapsid.[1] In 2010, it was redescribed by Robert R. Reisz, Michel Laurin and David Marjanović; their phylogenetic analysis found it to be a basal varanopid synapsid.[2]
Below is a simplified version of the cladogram found by Reisz, Laurin and Marjanović, 2010.[2]
| Varanopidae |
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References
- ↑ 1.0 1.1 Michel Laurin (1991). "The osteology of a Lower Permian eosuchian from Texas and a review of diapsid phylogeny". Zoological Journal of the Linnean Society 101 (1): 59–95. doi:10.1111/j.1096-3642.1991.tb00886.x.
- ↑ 2.0 2.1 Robert R. Reisz, Michel Laurin and David Marjanović (2010). "Apsisaurus witteri from the Lower Permian of Texas: yet another small varanopid synapsid, not a diapsid". Journal of Vertebrate Paleontology 30 (5): 1628–1631. doi:10.1080/02724634.2010.501441.
Wikidata ☰ Q4782191 entry
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