| 词条 | Pristerognathus |
| 释义 |
| fossil_range = Middle Permian | image = Pristeroognathus DB.jpg | image_caption = Restoration of two P. vanderbyli | taxon = Pristerognathus | authority = Seeley, 1895 }}Pristerognathus is an extinct genus of therocephalian, known from the late Middle Permian (Capitanian) of South Africa.[1] It lends its name to the Pristerognathus Assemblage Zone of the Beaufort Group of South African geological strata. Pristerognathus was a medium-sized therocephalian with a {{convert|25|cm|abbr=on}} skull and a total length up to {{convert|1.5|m|abbr=on}}.[2] These animals were roughly dog-sized, and are characterized by long, narrow skulls with large canines. They are likely to have lived in woodlands, and preyed on smaller therapsids and millerettids of the time.[3] Pristerognathus was discovered in 1895 by Seeley. Three species are known: P. baini, P. polyodon and P. vanderbyli.[4] There has also been a fourth species P. minor, but this has been reclassified to Pristerognathoides. See also
References{{commons category|Pristerognathus}}1. ^F. Abdala, B. Rubidge, and J. van der Heever, "The oldest therocephalians (Therapsida, Eutheriodonta) and the early diversification of Therapsida," Palaeontology, 51, 1011-1024 (2008) {{Therocephalia|P.}}{{Taxonbar|from=Q139301}}2. ^Stainford Kemp, Thomas(2005) The origin and evolution of mammals p.55 3. ^http://dinosaurs.about.com/od/predinosaurreptiles/p/pristerognathus.htm 4. ^http://www.paleofile.com/Theriodontia/Pristerognathus.asp 7 : Guadalupian synapsids|Scylacosaurids|Guadalupian synapsids of Africa|Fossil taxa described in 1895|Taxa named by Harry Seeley|Guadalupian genus first appearances|Guadalupian genus extinctions |
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