Ctenosauriscidae
| Ctenosauriscidae Temporal range: Early-Middle Triassic, 247.5–237 Ma | |
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| Vertebrae of the ctenosauriscid Ctenosauriscus koeneni | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Branch: | †Poposauroidea |
| Family: | †Ctenosauriscidae Kuhn, 1964 |
| Genera | |
Ctenosauriscidae is an extinct family of pseudosuchian archosaurs within the clade Poposauroidea.[1] Ctenosauriscids existed in Africa, Asia, Europe and North America during the Early Triassic to the Middle Triassic period (latest Olenekian to Anisian stages).[1] All species had large "sails" on their backs. Ctenosauriscids are among the earliest archosaurs and represent the first global radiation of the group.[2]
Genera
| Genus | Status | Age | Location | Unit | Notes | Images |
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 Arizonasaurus  Ctenosauriscus  Some fossils of the "Waldhaus ctenosauriscid" | |||||
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Lipovskaya Formation |
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Ctenosauriscus is one of the oldest archosaurs known to date.[2] | |||||
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"Waldhaus ctenosauriscid" |
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Heshanggou Formation |
Xilousuchus is one of the oldest archosaurs known to date.[2] | ||||
Phylogeny
Ctenosauriscidae was named by Oskar Kuhn in 1964 to include the genus Ctenosauriscus.[3] It is a stem-based taxon defined by Richard J. Butler, Stephen L. Brusatte, Mike Reich, Sterling J. Nesbitt, Rainer R. Schoch and Jahn J. Hornung in 2011 as "the most inclusive clade containing Ctenosauriscus koeneni but not Poposaurus gracilis, Effigia okeeffeae, Postosuchus kirkpatricki, Crocodylus niloticus, Ornithosuchus longidens, or Aetosaurus ferratus".[2] The cladograms below follows a 2011 analysis by Butler et al., the first based on Brusatte et al. 2010[4] and the second based on Nesbitt et al. 2011.[1]
| Poposauroidea |
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| Poposauroidea |
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References
- 1 2 3 Sterling J. Nesbitt (2011). "The Early Evolution of Archosaurs: Relationships and the Origin of Major Clades" (PDF). Bulletin of the American Museum of Natural History. 352: 1–292. doi:10.1206/352.1.
- 1 2 3 4 Richard J. Butler; Stephen L. Brusatte; Mike Reich; Sterling J. Nesbitt; Rainer R. Schoch; Jahn J. Hornung (2011). "The sail-backed reptile Ctenosauriscus from the latest Early Triassic of Germany and the timing and biogeography of the early archosaur radiation". PLoS ONE. 6 (10): e25693. PMC 3194824
. PMID 22022431. doi:10.1371/journal.pone.0025693. - ↑ Oskar Kuhn (1964). "Ungelöste Probleme der Stammesgeschichte der Amphibien und Reptilien". Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg. 118-119: 293–325.
- ↑ Brusatte, S.L.; Benton, M.J.; Desojo, J.B.; Langer, M.C. (2010). "The higher-level phylogeny of Archosauria (Tetrapoda: Diapsida)". Journal of Systematic Palaeontology. 8 (1): 3–47. doi:10.1080/14772010903537732.
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