Timeline of ceratosaur research
Ceratosaurus nasicornis
This timeline of ceratosaur research is a chronological listing of events in the
The idea of the Ceratosauria would regain some support more than thirty years later when Gilmore argued in its favor in
joints between bones in the skull whose interpretation has been controversial. Paleontologist Robert T. Bakker has interpreted this condition as an adaptation to swallow prey larger than it would otherwise be able to fit through its jaws.[4]
Since the
19th century
1880s
- Ceratosaurus nasicornis.[2] He also erected the new family Ceratosauridae and named the Ceratosauria to include both Ceratosaurus and the Ornithomimidae.[3]
- Richard Lydekker rejected the validity of the Ceratosauria and Ceratosauridae.[3]
1890s
- Cope rejected the validity of the Ceratosauria and Ceratosauridae.[3]
- Megalosaurus crenatissimus, based mostly on vertebrae.[7]
- Marsh described the new genus and species Labrosaurus sulcatus.[7]
20th century
1900s
Genyodectes serus
- Genyodectes serus.[7]
1910s
- Othenio Abel rejected the validity of the Ceratosauria and Ceratosauridae.[3]
1920s
- Elaphrosaurus bambergi.[8]
- Charles Whitney Gilmore recognized the Ceratosauria and/or Ceratosauridae as valid.[3]
Sarcosaurus woodi
- Janensch described the new species Labrosaurus stechowi.[7]
1930s
- Orthogoniosaurus matleyi.[7]
- Von Huene described the new genus and species
- Von Huene and Matley described the new genus and species O. mobilis.[7]
- Alfred Sherwood Romer rejected the validity of the Ceratosauria and Ceratosauridae.[3]
1950s
Neotype
specimen of M. crenatissimus (MNHN.MAJ 1), the right dentary of a subadult individual, Muséum national d'histoire naturelle, Paris.- René Lavocat erected the new genus Majungasaurus to house the species "Megalosaurus" crenatissimus, and designated a neotype specimen.[7]
- Albert-Félix de Lapparent and Lavocat rejected the validity of the Ceratosauria and Ceratosauridae.[3]
- Romer rejected the validity of the Ceratosauria and Ceratosauridae.[3]
- Von Huene recognized the Ceratosauria and/or Ceratosauridae as valid.[3]
1960s
- Romer rejected the validity of the Ceratosauria and Ceratosauridae.[3]
1970s
- Rodney Steel rejected the validity of the Ceratosauria and Ceratosauridae.[3]
pachycephalosaur
skull dome- Majungatholus atopus.[9]
- Alan Jack Charig rejected the validity of the Ceratosauria and Ceratosauridae.[3]
1980s
Carnotaurus sastrei
- Bonaparte and Abelisaurus comahuensis.[9]
- Bonaparte described the new genus and species Carnotaurus sastrei.[9]
- Robert T. Bakker thought the loose joints in the skull of Ceratosaurus was an adaptation allowing it to swallow prey that would otherwise be too large.[4]
- Ricardo Martínez and others described the new genus and species Xenotarsosaurus bonapartei.[9]
- Gauthier "resurrected the name Ceratosauria" to apply to the sister group of the tetanuran theropods. However, while he listed the members of his Ceratosauria, he did not propose a formal phylogenetic definition.[3]
- Rowe formally defined the Ceratosauria as theropods more closely related to Ceratosaurus nasicornis than birds, based on Gauthier's 1986 usage of the term.[3]
1990s
Tarascosaurus salluvicus
Velocisaurus unicus
- Rowe and Gauthier published a node-based definition of Ceratosauria.[3]
- Tarascosaurus salluvicus.[7]
- Bonaparte described the new genus and species Velocisaurus unicus.[9]
- Novas regarded the Ceratosauria as consisting of two sister groups, the Coelophysoidea and their sister group, the Neoceratosauria.[3]
- Thomas Holtz named the Coelophysoidea, then thought to be ceratosaurs. He defined them as all theropods more closely related to Coelophysis than to Ceratosaurus. Holtz defined the Neoceratosauria as all theropods closer to Ceratosaurus than to Coelophysis. He also defined the ceratosaur subclade Abelisauroidea as all theropods closer to Carnotaurus sastrei than to Ceratosaurus nasicornis.[3]
- Genusaurus sisteronis.[9]
- Bonaparte described the new genus and species Ligabueino andesi.[7]
- Sankar Chatterjee and Dhiraj Kumar Rudra observed that abelisaur teeth had lower crowns than other carnivorous dinosaurs either within or outside of Ceratosauria.[4]
- Ilokelesia aguagrandensis.[9]
- Sereno redefined Ceratosauria as all neotheropods closer to Coelophysis bauri than to birds. However, this definition never received broad acceptance by the scientific community because the Rowe had already defined the group in 1989, and therefore had priority.[3] He also split the Abelisauridae into two subfamilies; the Abelisaurinae (all abelisaurids more closely related to Abelisaurus than to Carnotaurus) and Carnotaurinae (all abelisaurids more closely related to Carnotaurus than to Abelisaurus).[3]
- Sampson and others described a more complete specimen of Majungatholus atops. They performed an X-ray CT scan of the skull of Majungatholus atopus. They found that the dome on the animal's skull formed of its frontal bone was actually hollow. This suggests that this structure was purely for display rather than used in fights between Majungatholus.[4]
21st century
2000s
Masiakosaurus knopfleri
- Madsen and Welles described the new species C. magnicornis.[9]
- Sampson,
Aucasaurus garridoi
- Aucasaurus garridoi.[9]
- Kellner and Campos described the new genus and species Pycnonemosaurus nevesi.[11]
- Wilson and others described the new genus and species Rajasaurus narmadensis.[12]
- Calvo, Rubilar-Rogers and Moreno described the new genus and species Ekrixinatosaurus novasi.[13]
- P. C. Sereno, J. A. Wilson, and J. L. Conrad described the new genus and species Rugops primus as well as the new genus Spinostropheus.[14]
- Malkani described the new genus and species Vitakridrinda sulaimani.[citation needed]
Limusaurus inextricabilis
- Allain and others described the new genus and species Berberosaurus liassicus.[15]
- Sereno and Brusatte described the new genus and species Kryptops palaios.[16]
- Canale and others described the new genus and species Skorpiovenator bustingorryi.[17]
- Xu and others described the new genus and species Limusaurus inextricabilis.[18]
2010s
- M. D. Ezcurra, F. L. Agnolin, and Novas described the new genus and species Austrocheirus isasii.[19]
- Novas and others described the new genus and species Rahiolisaurus gujaratensis.[20]
- Pol and Rauhut described the new genus and species Eoabelisaurus mefi.[21]
- Farke and Sertich described the new genus and species Dahalokely tokana.[22]
- Tortosa and others described the new genus and species Arcovenator escotae.[23]
- Sánchez-Hernández and Benton described the new genus and species Camarillasaurus cirugedae.[24]
- Sebastian G. Dalman described the new genus and species Fosterovenator.[25]
- Filippi and others described the new genus and species Viavenator exxoni.[26]
- Longrich and others described the new genus and species Chenanisaurus barbaricus.[27]
- Dal Sasso and others described the new genus and species Saltriovenator zanellai.[28]
- Delcourt and Iori described the new genus and species Thanos simonattoi.[29]
- Partially preserved
- Langer and others described the new genus and species Vespersaurus paranaensis.[31]
2020s
- Cerronia and others described the new genus and species Tralkasaurus cuyi.[32]
See also
Footnotes
- ^ Tykoski and Rowe (2004); "Introduction", page 47. Also cf. "Systematics and Evolution", page 64.
- ^ a b Tykoski and Rowe (2004); "Table 3.1: Ceratosauria", pages 48–49.
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y Tykoski and Rowe (2004); "Systematics and Evolution", page 64.
- ^ a b c d e Tykoski and Rowe (2004); "Paleobiology", page 69.
- ^ Holtz (1999"South American Discoveries: Keys to Dinosaur Evolution", pages 48–49.
- ^ Sampson (2009); For description and naming, see "Dramatis Dinosaurae", pages 36–37. For family membership, see "Drifting Continents and Globe-Trotting Dinosaurs" page 59.
- ^ a b c d e f g h i j k l Tykoski and Rowe (2004); "Table 3.1: Ceratosauria", page 50.
- ^ Tykoski and Rowe (2004); "Table 3.1: Ceratosauria", page 48.
- ^ a b c d e f g h i j k l m Tykoski and Rowe (2004); "Table 3.1: Ceratosauria", page 49.
- ^ Tykoski and Rowe (2004); "Paleobiology", page 70.
- ^ Kellner and Campos (2002); "Abstract", page 163.
- ^ Wilson et al. (2003); "Abstract", page 1.
- ^ Calvo, Rubilar-Rogers and Moreno (2004); "Abstract", page 555.
- ^ Sereno, Wilson, and Conrad (2004); "Abstract", page 1325.
- ^ Allain et al. (2007); "Abstract", page 610.
- ^ Sereno and Brusatte (2008); "Abstract", page 15.
- ^ Canale et al. (2008); "Abstract", page 409.
- ^ Xu et al. (2009); "Abstract", page 940.
- ^ Ezcurra, Agnolin, and Novas (2010); "Abstract", page 1.
- ^ Novas et al. (2010); "Abstract", page 45.
- ^ Pol and Rauhut (2012); "Abstract", page 3170.
- ^ Farke and Sertich (2013); "Abstract", page 1.
- ^ Tortosa et al. (2013); "Abstract", page 63.
- ^ Sánchez-Hernández and Benton (2014); "Abstract", page 581.
- ^ Dalman (2014); "Abstract", page 181.
- ^ Fillippi et al. (2016); in passim.
- .
- PMID 30588396.
- S2CID 92754354.
- PMID 30939139.
- PMID 31243312.
- S2CID 213781725.
References
- Allain, Ronan; Tykoski, Ronald; Aquesbi, Najat; Jalil, Nour-Eddine; Monbaron, Michel; Russell, Dale; Taquet, Phillipe (2007). "A basal abelisauroid from the late Early Jurassic of the High Atlas Mountains, Morocco, and the radiation of ceratosaurs" (PDF). Journal of Vertebrate Paleontology. 27 (3): 610–624. S2CID 131617581.
- Jorge Calvo, David Rubilar-Rogers & Karen Moreno (2004). "A new Abelisauridae (Dinosauria: Theropoda) from northwest Patagonia". Ameghiniana. 41 (4): 555–563.
- Coria, R. A.; Chiappe, L. M.; Dingus, L. (2002). "A new close relative of Carnotaurus sastrei Bonaparte 1985 (Theropoda: Abelisauridae) from the Late Cretaceous of Patagonia". Journal of Vertebrate Paleontology. 22 (2): 460–465. S2CID 131148538.
- Canale, J. I.; Scanferla, C. A.; Agnolin, F.; Novas, F. E. (2008). "New carnivorous dinosaur from the Late Cretaceous of NW Patagonia and the evolution of abelisaurid theropods" (PDF). Naturwissenschaften. 96 (3): 409–414. S2CID 23619863.
- Dalman, Sebastian G. (2014). "New data on small theropod dinosaurs from the Upper Jurassic Morrison Formation of Como Bluff, Wyoming, USA". Volumina Jurassica. 12 (2): 181–196. Archived from the original on 2014-12-16.
- Ezcurra, M.D., Agnolin, F.L. & Novas, F.E. (2010). "An abelisauroid dinosaur with a non-atrophied manus from the Late Cretaceous Pari Aike Formation of southern Patagonia" (PDF). Zootaxa. 2450: 1–25. doi:10.11646/zootaxa.2450.1.1.)
{{cite journal}}: CS1 maint: multiple names: authors list (link - Farke, A. A.; Sertich, J. J. W. (2013). Butler, Richard J (ed.). "An Abelisauroid Theropod Dinosaur from the Turonian of Madagascar". PLOS ONE. 8 (4): e62047. PMID 23637961.
- Leonardo S. Filippi, Ariel H. Méndez, Rubén D. Juárez Valieri and Alberto C. Garrido (2016). "A new brachyrostran with hypertrophied axial structures reveals an unexpected radiation of latest Cretaceous abelisaurids". Cretaceous Research. 61: 209–219. hdl:11336/149906.)
{{cite journal}}: CS1 maint: multiple names: authors list (link - Holtz, Thomas R. (1999). "Dinosaur Hunters of the Southern Continents". In Farlow, J.O.; Brett-Surman, M.K. (eds.). The Complete Dinosaur. Indiana University Press. pp. 43–51. ISBN 978-0-253-21313-6.
- Kellner, A. W. A.; Campos, D. A. (2002). "On a theropod dinosaur (Abelisauria) from the continental Cretaceous of Brazil". Arquivos do Museu Nacional Rio de Janeiro. 60 (3): 163–170.
- Novas, Fernando E.; Chatterjee, Sankar; Rudra, Dhiraj K.; Datta, P. M. (2010). "Rahiolisaurus gujaratensis, n. gen. n. sp., A New Abelisaurid Theropod from the Late Cretaceous of India". In Bandyopadhyay, Saswati (ed.). New Aspects of Mesozoic Biodiversity. Berlin / Heidelberg: Springer. pp. 45–62. ISBN 978-3-642-10310-0.
- Diego Pol & Oliver W. M. Rauhut (2012). "A Middle Jurassic abelisaurid from Patagonia and the early diversification of theropod dinosaurs". Proceedings of the Royal Society B: Biological Sciences. 279 (1804): 3170–5. PMID 22628475.
- Sampson, Scott D. (2009). Dinosaur Odyssey: Fossil Threads in the Web of Life. ISBN 978-0-520-24163-3.
Scott D. Sampson.
- Sánchez-Hernández, B. R.; Benton, M. (2014). "Filling the ceratosaur gap: A new ceratosaurian theropod from the Early Cretaceous of Spain". Acta Palaeontologica Polonica. 59 (3): 581–600. .
- .
- Sereno, P. C.; Wilson, J. A.; Conrad, J. L. (2004). "New dinosaurs link southern landmasses in the Mid-Cretaceous". Proceedings of the Royal Society of London B. 271 (1546): 1325–1330. PMID 15306329.
- Tortosa, Thierry; Eric Buffetaut; Nicolas Vialle; Yves Dutour; Eric Turini; Gilles Cheylan (2014). "A new abelisaurid dinosaur from the Late Cretaceous of southern France: Palaeobiogeographical implications". Annales de Paléontologie. 100 (1): 63–86. .
- Tykoski, R. S.; Rowe, T. (2004). "Ceratosauria". In Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (eds.). The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 47–70. ISBN 978-0-520-24209-8.
- Wilson, J. A.; Sereno, P. C.; Srivastava, S.; Bhatt, D. K.; Khosla, A.; Sahni, A. (2003). "A new abelisaurid (Dinosauria, Theropoda) from the Lameta Formation (Cretaceous, Maastrichtian) of India" (PDF). Contributions from the Museum of Paleontology. 31 (1). University of Michigan: 1–42.
- Xu, X.; Clark, J. M.; Mo, J.; Choiniere, J.; Forster, C. A.; Erickson, G. M.; Hone, D. W. E.; Sullivan, C.; Eberth, D. A.; Nesbitt, S.; Zhao, Q.; Hernandez, R.; Jia, C.-K.; Han, F.-L.; Guo, Y. (2009). "A Jurassic ceratosaur from China helps clarify avian digital homologies" (PDF). Nature. 459 (18): 940–944. S2CID 4358448.
External links
Media related to Ceratosauria at Wikimedia Commons
