Biology:Carnotaurinae

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Short description: Extinct subfamily of reptiles

Carnotaurines
Temporal range: Late Cretaceous, 98–66 Ma
Carnotaurus, Chlupáč Museum, Prague-2.jpg
Mounted cast of a Carnotaurus sastrei skeleton, Chlupáč Museum, Prague
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Family: Abelisauridae
Subfamily: Carnotaurinae
Sereno, 1998
Type species
Carnotaurus sastrei
Bonaparte, 1985
Subgroups

See text.

Carnotaurinae is a subfamily of the theropod dinosaur family Abelisauridae. It includes the dinosaurs Aucasaurus (from Argentina ), Carnotaurus (from Argentina). The group was first proposed by American paleontologist Paul Sereno in 1998, defined as a clade containing all abelisaurids more closely related to Carnotaurus than to Majungasaurus.[1]

Classification

Size comparison of various genera within Carnotaurinae

Phylogeny

In 2008, Canale et al. published a phylogenetic analysis focusing on the South American carnotaurines. In their results, they found that all South American forms (including Ilokelesia) grouped together as a sub-clade of Carnotaurinae, which they named Brachyrostra, meaning "short snouts." They defined the clade Brachyrostra as "all the abelisaurids more closely related to Carnotaurus sastrei than to Majungasaurus crenatissimus."[3]

Carnotaurinae 

Majungasaurus

Brachyrostra 
Carnotaurini 

Carnotaurus

Aucasaurus

Ilokelesia

 

Skorpiovenator

Ekrixinatosaurus

An analysis conducted by Tortosa et al. in 2013 moved several carnotaurine taxa into the newly named Majungasaurinae, and moved many abelisaurids into Carnotaurini.

Abelisauridae

Kryptops

Rugops

Genusaurus

MCF-PVPH-237 abelisaurid

Xenotarsosaurus

Tarascosaurus

La Boucharde abelisaurid

 
Majungasaurinae

Pourcieux abelisaurid

Arcovenator

Majungasaurus

Indosaurus

Rahiolisaurus

Rajasaurus

Brachyrostra

Ilokelesia

 

Ekrixinatosaurus

 

Skorpiovenator

 
Carnotaurini

Abelisaurus

Aucasaurus

Pycnonemosaurus

Quilmesaurus

Carnotaurus

Carnotaurinae in cladogram according to Wang et al. 2017.[8]

Abelisauridae

Rugops Rugops (cropped).png

Abelisaurus

Ilokelesia Ilokelesia (flipped).jpg

Carnotaurinae
Majungasaurinae

Indosaurus Indosuchus raptorius.jpg

Arcovenator Arcovenator.jpg

Dahalokely Dahalokely restoration (flipped).jpg

Majungasaurus Majungasaurus BW (flipped).jpg

Rajasaurus Rajasaurus restoration.jpg

Rahiolisaurus

Brachyrostra

Aucasaurus Aucasaurus garridoi by Paleocolour.jpg

Carnotaurus Carnotaurus DB 2 white background.jpg

Skorpiovenator Skorpiovenator bustingorryi.jpg

Quilmesaurus Quilmeosaurus SW Flipped.png

Ekrixinatosaurus Ekrixinatosaurus novasi by Henrique Paes.png

Pycnonemosaurus

See also

References

  1. Sereno, Paul C. (10 November 1998). "A rationale for phylogenetic definitions, with application to the higher-level taxonomy of Dinosauria". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 210 (1): 41–83. doi:10.1127/njgpa/210/1998/41. 
  2. Delcourt, Rafael (27 June 2018). "Ceratosaur palaeobiology: new insights on evolution and ecology of the southern rulers". Scientific Reports 8 (1): 9730. doi:10.1038/s41598-018-28154-x. PMID 29950661. Bibcode2018NatSR...8.9730D. 
  3. 3.0 3.1 3.2 3.3 Canale, Juan I.; Scanferla, Carlos A.; Agnolin, Federico L.; Novas, Fernando E. (5 December 2008). "New carnivorous dinosaur from the Late Cretaceous of NW Patagonia and the evolution of abelisaurid theropods". Naturwissenschaften 96 (3): 409–414. doi:10.1007/s00114-008-0487-4. PMID 19057888. Bibcode2009NW.....96..409C. 
  4. Baiano, Mattia A.; Pol, Diego; Bellardini, Flavio; Windholz, Guillermo J.; Cerda, Ignacio A.; Garrido, Alberto C.; Coria, Rodolfo A (2022-09-05). "Elemgasem nubilus: a new brachyrostran abelisaurid (Theropoda, Ceratosauria) from the Portezuelo Formation (Upper Cretaceous) of Patagonia, Argentina". Papers in Palaeontology 8 (5): e1462. doi:10.1002/spp2.1462. 
  5. 5.0 5.1 Agnolín, Federico L.; Cerroni, Mauricio A.; Scanferla, Agustín; Goswami, Anjali; Paulina-Carabajal, Ariana; Halliday, Thomas; Cuff, Andrew R.; Reuil, Santiago (2022-02-10). "First definitive abelisaurid theropod from the Late Cretaceous of Northwestern Argentina". Journal of Vertebrate Paleontology 41 (4): e2002348. doi:10.1080/02724634.2021.2002348. ISSN 0272-4634. https://doi.org/10.1080/02724634.2021.2002348. 
  6. Delcourt, Rafael; Iori, Fabiano Vidoi (16 November 2018). "A new Abelisauridae (Dinosauria: Theropoda) from São José do Rio Preto Formation, Upper Cretaceous of Brazil and comments on the Bauru Group fauna". Historical Biology 32 (7): 917–924. doi:10.1080/08912963.2018.1546700. 
  7. Tortosa, Thierry; Buffetaut, Eric; Vialle, Nicolas; Dutour, Yves; Turini, Eric; Cheylan, Gilles (January 2014). "A new abelisaurid dinosaur from the Late Cretaceous of southern France: Palaeobiogeographical implications". Annales de Paléontologie 100 (1): 63–86. doi:10.1016/j.annpal.2013.10.003. 
  8. Wang, Shuo; Stiegler, Josef; Amiot, Romain; Wang, Xu; Du, Guo-hao; Clark, James M.; Xu, Xing (January 2017). "Extreme Ontogenetic Changes in a Ceratosaurian Theropod". Current Biology 27 (1): 144–148. doi:10.1016/j.cub.2016.10.043. ISSN 0960-9822. 

Further reading

Wikidata ☰ Q134391 entry