Unranked clade
Valid Extinct

Brachyrostra

Canale et al. 2008

Brachyrostra is a clade within the theropod dinosaur family Abelisauridae. It includes the famous genera Carnotaurus, Aucasaurus, potentially Abelisaurus as well as their close relatives from the Cretaceous Period of Argentina and Brazil plus Caletodraco from France. The group was first proposed in an analysis conducted by Juan Canale and colleagues in 2008. They found that all South American abelisaurids described up to that point grouped together as a sub-clade of Abelisauridae, which they named based on the relatively unusual shape of their skulls. They defined the clade Brachyrostra as "all the abelisaurids more closely related to Carnotaurus sastrei than to Majungasaurus crenatissimus."

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
28
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
Brachyrostra
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Carnotaurus in Chlupáč museum in Prague © Carnotaurus, Chlupáč Museum, Prague-2.jpg: Czech Wikipedia user Packa derivative work: Hic et nunc · CC BY-SA 3.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
›
Theropoda Unranked clade
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Neotheropoda Unranked clade
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Averostra Unranked clade
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Ceratosauria Suborder
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Abelisauridae Family
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Brachyrostra Unranked clade
Fossil sites 28 geolocated sites
Distribution
Top countries
🇦🇷 Argentina
23
🇧🇷 Brazil
2
🇫🇷 France
1
🇲🇬 Madagascar
1
🇮🇳 India
1
Geological formations
Bajo de la Carpa
6
Huincul
4
Anacleto
3
Allen
3
Portezuelo
2
La Colonia
2
Candeleros
1
Saint Jouin
1
Ambolafotsy
1
Plottier
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
6
Campanian (83.6–72.2 Ma)
6
Santonian (85.7–83.6 Ma)
6
Coniacian (89.8–85.7 Ma)
1
Turonian (93.9–89.8 Ma)
3
Cenomanian (100.5–93.9 Ma)
5
Albian (113.2–100.5 Ma)
1
Bibliography
Original description
J. I. Canale, C. A. Scanferla, and F. L. Agnolín, F. E. Novas. 2008. New carnivorous dinosaur from the Late Cretaceous of NW Patagonia and the evolution of abelisaurid theropods. Naturwissenschaften 96:409-414 DOI ↗
Bibliography (23)
E. Buffetaut, H. Tong, and J. Girard, B. Hoyez, J. Párraga. 2024. Caletodraco cottardi: A New Furileusaurian Abelisaurid (Dinosauria: Theropoda) from the Cenomanian Chalk of Normandy (North-Western France). Fossil Studies 2(3):177-195 DOI ↗
D. Pol, M. A. Baiano, and D. Cerný, F. E. Novas, I. A. Cerda, M. Pittman. 2024. A new abelisaurid dinosaur from the end Cretaceous of Patagonia and evolutionary rates among the Ceratosauria. Cladistics 40(3):307–356 DOI ↗
M. A. Baiano, D. Pol, and F. Bellardini, G. J. Windholz, I. A. Cerda, A. C. Garrido, R. A. Coria. 2022. Elemgasem nubilus: a new brachyrostran abelisaurid (Theropoda, Ceratosauria) from the Portezuelo Formation (Upper Cretaceous) of Patagonia, Argentina. Papers in Palaeontology 8:1-38 DOI ↗
M. A. Cerroni, M. A. Baiano, and J. I. Canale, F. L. Agnolín, A. Otero, F. E. Novas. 2022. Appendicular osteology of Skorpiovenator bustingorryi (Theropoda, Abelisauridae) with comments on phylogenetic features of abelisaurids. Journal of Systematic Palaeontology 20(1):1–32 DOI ↗
F. A. Gianechini, L. S. Filippi, and A. H. Méndez, A. C. Garrido. 2022. A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae. Publicación Electrónica de la Asociación Paleontológica Argentina 22(2):58-70 DOI ↗
A. H. Méndez, F. A. Gianechini, and A. Paulina-Carabajal, L. S. Filippi, R. D. Juárez-Valieri, I. A. Cerda, A. C. Garrido. 2022. New furileusaurian remains from La Invernada (northern Patagonia, Argentina): a site of unusual abelisaurids abundance. Cretaceous Research 129:104989:1-20 DOI ↗
F. L. Agnolín, M. A. Cerroni, and A. Scanferla, A. Goswami, A. Paulina-Carabajal, T. Halliday, A. R. Cuff, S. Reuil. 2021. First definitive abelisaurid theropod from the Late Cretaceous of Northwestern Argentina. Journal of Vertebrate Paleontology 41(4):e2202348:1-17 DOI ↗
M. Aranciaga Rolando, M. A. Cerroni, and J. A. Garcia Marsà, F. I. Agnolín, M. J. Motta, S. Rozadilla, F. Brisson Eglí, F. E. Novas. 2021. A new medium-sized abelisaurid (Theropoda, Dinosauria) from the Late Cretaceous (Maastrichtian) Allen Formation of Northern Patagonia, Argentina. Journal of South American Earth Sciences 105:102915:1-18 DOI ↗
J. G. Meso, C. Hendrickx, and M. A. Baiano, J. I. Canale, L. Salgado, I. Diáz Martínez. 2021. Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina. Acta Palaeontologica Polonica 66 DOI ↗
R. Delcourt and F. V. Iori. 2020. 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 ↗
F. A. Gianechini, A. H. Méndez, and L. S. Filippi, A. Paulina-Carabajal, R. D. Juárez-Valieri, A. C. Garrido. 2020. A new furileusaurian abelisaurid from La Invernada (Upper Cretaceous, Santonian, Bajo De La Carpa Formation), northern Patagonia, Argentina. Journal of Vertebrate Paleontology DOI ↗
L. S. Filippi, F. A. Gianechini, and A. H. Méndez, R. D. Juárez Valieri, A. C. Garrido. 2016. Nuevos cráneos de Furileusauria (Abelisauridae, Brachyrostra) provenientes de La Invernada (Formación Bajo de la Carpa (Cretácico Superior, Santoniano), Neuquén, Argentina [New crania of Furileusauria (Abelisauridae, Brachyrostra) from La Invernada (Bajo de la Carpa Formation (Upper Cretaceous, Santonian), Neuquén, Argentina]. XXX Jornadas Argentinas de Paleontología de Vertebrados. Resúmenes. Ameghiniana 53(6 (suppl.)):61-62
L. S. Filippi, A. H. Méndez, and R. D. Juárez Valieri, A. C. Garrido. 2016. A new brachyrostran with hypertrophied axial structures reveals an unexpected radiation of latest Cretaceous abelisaurids. Cretaceous Research 60:209-219 DOI ↗
A. A. Farke and J. J. W. Sertich. 2013. An abelisauroid theropod dinosaur from the Turonian of Madagascar. PLoS ONE 8(4):e62047:1-18 DOI ↗
F. E. Novas, S. Chatterjee, and D. K. Rudra, P. M. Datta. 2010. Rahiolisaurus gujaratensis, n. gen. n. sp., a new abelisaurid theropod from the Late Cretaceous of India. New Aspects of Mesozoic Biodiversity. Lecture Notes in Earth Sciences 132. Springer-Verlag, Berlin DOI ↗
J. I. Canale, C. A. Scanferla, and F. L. Agnolín, F. E. Novas. 2008. New carnivorous dinosaur from the Late Cretaceous of NW Patagonia and the evolution of abelisaurid theropods. Naturwissenschaften 96:409-414 DOI ↗
J. O. Calvo, D. Rubilar-Rogers, and K. Moreno. 2004. A new Abelisauridae (Dinosauria: Theropoda) from northwest Patagonia. Ameghiniana 41(4):555-563
R. A. Coria, L. M. Chiappe, and L. Dingus. 2002. A new close relative of <i>Carnotaurus sastrei</i> Bonaparte 1985 (Theropoda: Abelisauridae) from the Late Cretaceous of Patagonia. Journal of Vertebrate Paleontology 22(2):460-465 DOI ↗
A. W. A. Kellner and D. d. A. Campos. 2002. On a theropod dinosaur (Abelisauria) from the continental Cretaceous of Brazil. Arquivos do Museu Nacional, Rio de Janeiro 60(3):163-170
R. A. Coria. 2001. New theropod from the Late Cretaceous of Patagonia. Mesozoic Vertebrate Life
R. A. Coria and L. Salgado. 2000. A basal Abelisauria Novas, 1992 (Theropoda–Ceratosauria) from the Cretaceous of Patagonia, Argentina. GAIA 15:89-102
J. F. Bonaparte. 1985. A horned Cretaceous carnosaur from Patagonia. National Geographic Research 1(1):149-151
J. F. Bonaparte and F. E. Novas. 1985. Abelisaurus comahuensis, n.g., n.sp., Carnosauria del Crétacico Tardio de Patagonia [Abelisaurus comahuensis, n.gen., n.sp., Carnosauria from the Late Cretaceous of Patagonia]. Ameghiniana 21(2-4):259-265