Bahariasauridae is a potential family of averostran theropods that might include a handful of African and South American genera, such as Aoniraptor, Bahariasaurus, Deltadromeus, and Gualicho.[1][2] The placement of these theropods is controversial, with some studies placing them as basal ceratosaurs possibly related to Noasauridae (which they may also include the otherwise noasaurid subfamily Elaphrosaurinae),[1] others classifying them as megaraptorans,[2][3] basal neovenatorids,[4] or basal coelurosaurs.[5][6] There is also a possibility the group might not be monophyletic, as a monograph on the vertebrate diversity in the Kem Kem Beds published in 2020 found Bahariasaurus to be nomen dubium.[7] In the same paper Deltadromeus is classified as an noasaurid,[7] a result also recovered by some previous studies.[8][9][10] A 2024 phylogenetic analysis found Aoniraptor, Bahariasaurus, Deltadromeus, and Gualicho to form a monophyletic clade as the sister taxon to Elaphrosaurus near the base of Ceratosauria.[11]
| Bahariasauridae Temporal range: Late Cretaceous
| |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | Averostra |
| Family: | †Bahariasauridae von Huene, 1948 |
| Type species | |
| †Bahariasaurus ingens Stromer, 1934
| |
| Subclades | |
| |
References
edit- ^ a b c Chiarenza, Alfio Alessandro; Cau, Andrea (2016). "A large abelisaurid (Dinosauria, Theropoda) from Morocco and comments on the Cenomanian theropods from North Africa". PeerJ. 4 (e1754): e1754. doi:10.7717/peerj.1754. PMC 4782726. PMID 26966675.
- ^ a b Motta, Matías J.; Aranciaga Rolando, Alexis M.; Rozadilla, Sebastián; Agnolín, Federico E.; Chimento, Nicolás R.; Egli, Federico Brissón; Novas, Fernando E. (June 2016). "New theropod fauna from the Upper Cretaceous (Huincul Formation) of northwestern Patagonia, Argentina". New Mexico Museum of Natural History and Science Bulletin. 71: 231–253 – via ResearchGate.
- ^ Samathi, A.; Chanthasit, P.; Martin Sander, P. (May 2019). "Two new basal coelurosaurian theropod dinosaurs from the Lower Cretaceous Sao Khua Formation of Thailand". Acta Palaeontologica Polonica. doi:10.4202/app.00540.2018.
- ^ Apesteguía S, Smith ND, Juárez Valieri R, Makovicky PJ (2016). "An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina". PLOS ONE. 11 (7): e0157793. Bibcode:2016PLoSO..1157793A. doi:10.1371/journal.pone.0157793. PMC 4943716. PMID 27410683.
- ^ Juan D. Porfiri; Rubén D. Juárez Valieri; Domenica D.D. Santos; Matthew C. Lamanna (2018). "A new megaraptoran theropod dinosaur from the Upper Cretaceous Bajo de la Carpa Formation of northwestern Patagonia". Cretaceous Research. 89: 302–319. Bibcode:2018CrRes..89..302P. doi:10.1016/j.cretres.2018.03.014. S2CID 134117648.
- ^ Delcourt, R.; Grillo, O. N. (2018). "Tyrannosauroids from the Southern Hemisphere: Implications for biogeography, evolution, and taxonomy". Palaeogeography, Palaeoclimatology, Palaeoecology. 511: 379–387. Bibcode:2018PPP...511..379D. doi:10.1016/j.palaeo.2018.09.003. S2CID 133830150.
- ^ a b Ibrahim, Nizar; Sereno, Paul C.; Varricchio, David J.; Martill, David M.; Dutheil, Didier B.; Unwin, David M.; Baidder, Lahssen; Larsson, Hans C. E.; Zouhri, Samir; Kaoukaya, Abdelhadi (2020-04-21). "Geology and paleontology of the Upper Cretaceous Kem Kem Group of eastern Morocco". ZooKeys (928): 1–216. Bibcode:2020ZooK..928....1I. doi:10.3897/zookeys.928.47517. ISSN 1313-2970. PMC 7188693. PMID 32362741.
- ^ Wilson, Jeffrey A.; Sereno, Paul C.; Srivastava, Suresh; Bhatt, Devendra K.; Khosla, Ashu; Sahni, Ashok (2003). "A new abelisaurid (Dinosauria, Theropoda) from the Lameta Formation (Cretaceous, Maastrichtian) of India". Contr. Mus. Palaeont. Univ. Mich. 31: 1–42.
- ^ Rauhut, O.W.M., and Carrano, M.T. (2016). The theropod dinosaur Elaphrosaurus bambergi Janensch, 1920, from the Late Jurassic of Tendaguru, Tanzania. Zoological Journal of the Linnean Society, (advance online publication) doi:10.1111/zoj.12425
- ^ Wang, S.; Stiegler, J.; Amiot, R.; Wang, X.; Du, G.-H.; Clark, J.M.; Xu, X. (2017). "Extreme Ontogenetic Changes in a Ceratosaurian Theropod" (PDF). Current Biology. 27 (1): 144–148. Bibcode:2017CBio...27..144W. doi:10.1016/j.cub.2016.10.043. PMID 28017609. S2CID 441498.
- ^ Cau, Andrea (2024). "A Unified Framework for Predatory Dinosaur Macroevolution" (PDF). Bollettino della Società Paleontologica Italiana. 63 (1): 1–19. doi:10.4435/BSPI.2024.08 (inactive 2024-11-20). ISSN 0375-7633.
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