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Temporal range: Late Carboniferous, 300 Ma
Artist's illustration of Archaeovenator
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Family: Varanopidae
Genus: Archaeovenator
Reisz & Dilkes, 2003
Species: A. hamiltonensis
Binomial name
Archaeovenator hamiltonensis
Reisz & Dilkes, 2003

Archaeovenator is an extinct genus of Late Carboniferous varanopid synapsids known from Greenwood County, Kansas of the United States. It was first named by Robert R. Reisz and David W. Dilkes in 2003 and the type species is Archaeovenator hamiltonensis. Archaeovenator hamiltonensis is known from the holotype KUVP 12483, a three-dimensionally preserved, nearly complete and articulated skeleton, including the skull, with limbs and girdles slightly separated from postcranial skeleton. It was collected in the Hamilton Quarry, from the Calhouns Shale Formation of the Shawnee Group, dating to the Virgilian stage (or alternatively late Kasimovian to early Gzhelian stage) of the Late Pennsylvanian Series, about 300 million years ago. The generic name is derived from the Latin Archaeo and venator, meaning "ancient hunter". The specific name is named after its finding place Hamilton Quarry.[1] Archaeovenator is the oldest and the basalmost known varanopid, as it is the sister taxon to all other known varanopsids.[1][2]


  1. ^ a b Robert R. Reisz and David W. Dilkes (2003). "Archaeovenator hamiltonensis, a new varanopid from the upper carboniferous of Kansas" (PDF). Canadian Journal of Earth Sciences. 40: 667–678. Bibcode:2003CaJES..40..667R. doi:10.1139/E02-063. Archived from the original (PDF) on 2011-05-22.
  2. ^ Robert R. Reisz, Michel Laurin and David Marjanovic (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.