Biology:Aeolosaurini

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Short description: Extinct clade of dinosaurs

Aeolosaurini
Temporal range: Cretaceous, 110–66 Ma
MaxakalisaurusTopai Rec.jpg
Maxakalisaurus skeleton
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Sauropodomorpha
Clade: Sauropoda
Clade: Macronaria
Clade: Titanosauria
Clade: Lithostrotia
Clade: Aeolosaurini
Franco-Rosas et al., 2004
Genera[3]

Aeolosaurini is an extinct clade of titanosaurian dinosaurs known from the Cretaceous period of Argentina and Brazil . Rodrigo M. Santucci and Antonio C. de Arruda-Campos (2011) in their cladistic analysis found Aeolosaurus, Gondwanatitan, Maxakalisaurus, Panamericansaurus and Rinconsaurus to be aeolosaurids.[4]

Aeolosaurini is characterized by several synapomorphies of the caudal vertebrae, such as angled centra, elongate prezygapophyses, and neural arches shifted anteriorly relative to the centra. In life, their tails may have been strongly curved downward as a result of these traits, which may have increased the force exerted by the caudofemoralis longus muscle in retracting the hindlimb.[5] Some aeolosaurins, such as Shingopana and Overosaurus, were relatively small compared to other titanosaurs,[6][7] whereas others, such as Aeolosaurus maximus, were large.[4]

Phylogeny

Aeolosaurini was defined by Franco-Rosas, Salgado, Rosas and Carvalho (2004) as the stem-based taxon that corresponds to the most-inclusive clade containing Aeolosaurus rionegrinus and Gondwanatitan faustoi, but not Saltasaurus loricatus and Opisthocoelicaudia skarzynskii.[8] Below is a cladogram showing the phylogenetic relationships of Aeolosaurini-based Santucci and Arruda-Campos (2011), from Franca et al. (2016) on the left, and Silva et al. (2019) on the right.[4][9][10]

References

  1. Silva, J.C. jr.; Martinelli, A.G.; Iori, F.V.; Marinho, T.S.; Hechenleitner, E.M.; Langer, M.C. (2021). "Reassessment of Aeolosaurus maximus, a titanosaur dinosaur from the Late Cretaceous of Southeastern Brazil". Historical Biology: An International Journal of Paleobiology 34 (3): 403–411. doi:10.1080/08912963.2021.1920016. 
  2. Gorscak, E.; O'Connor, P.M.; Roberts, E.M.; Stevens, N.J. (2017). "The second titanosaurian (Dinosauria: Sauropoda) from the middle Cretaceous Galula Formation, southwestern Tanzania, with remarks on African titanosaurian diversity". Journal of Vertebrate Paleontology 361 (4): 35–55. doi:10.1080/02724634.2017.1343250. https://figshare.com/articles/dataset/The_second_titanosaurian_Dinosauria_Sauropoda_from_the_middle_Cretaceous_Galula_Formation_southwestern_Tanzania_with_remarks_on_African_titanosaurian_diversity/5340808. 
  3. Santucci, R.M.; Filippi, L.S. (2022). "Last Titans: Titanosaurs From the Campanian–Maastrichtian Age". in Otero, A.; Carballido, J.L.; Pol, D.. South American Sauropodomorph Dinosaurs. Record, Diversity and Evolution. Springer. pp. 341–391. doi:10.1007/978-3-030-95959-3. ISBN 978-3-030-95958-6. 
  4. 4.0 4.1 4.2 Rodrigo M. Santucci; Antonio C. de Arruda-Campos (2011). "A new sauropod (Macronaria, Titanosauria) from the Adamantina Formation, Bauru Group, Upper Cretaceous of Brazil and the phylogenetic relationships of Aeolosaurini". Zootaxa 3085: 1–33. doi:10.11646/zootaxa.3085.1.1. http://www.mapress.com/zootaxa/2011/f/z03085p033f.pdf. 
  5. da Silva Vidal, Luciano; Pereira, Paulo Victor Luiz Gomes da Costa; Tavares, Sandra; Brusatte, Stephen L.; Bergqvist, Lílian Paglarelli; Candeiro, Carlos Roberto dos Anjos (2020-04-13). "Investigating the enigmatic Aeolosaurini clade: the caudal biomechanics of Aeolosaurus maximus (Aeolosaurini/Sauropoda) using the neutral pose method and the first case of protonic tail condition in Sauropoda". Historical Biology 33 (9): 1836–1856. doi:10.1080/08912963.2020.1745791. 
  6. Gorscak, Eric; O'Connor, Patrick M.; Roberts, Eric M.; Stevens, Nancy J. (2017-07-04). "The second titanosaurian (Dinosauria: Sauropoda) from the middle Cretaceous Galula Formation, southwestern Tanzania, with remarks on African titanosaurian diversity". Journal of Vertebrate Paleontology 37 (4): –1343250. doi:10.1080/02724634.2017.1343250. https://figshare.com/articles/dataset/The_second_titanosaurian_Dinosauria_Sauropoda_from_the_middle_Cretaceous_Galula_Formation_southwestern_Tanzania_with_remarks_on_African_titanosaurian_diversity/5340808. 
  7. Coria, Rodolfo A.; Filippi, Leonardo S.; Chiappe, Luis M.; García, Rodolfo; Arcucci, Andrea B. (2013-07-05). "Overosaurus paradasorum gen. et sp. nov. , a new sauropod dinosaur (Titanosauria: Lithostrotia) from the Late Cretaceous of Neuquén, Patagonia, Argentina". Zootaxa 3683 (4): 357–376. doi:10.11646/zootaxa.3683.4.2. PMID 25250458. 
  8. Franco-Rosas, A. C.; et al. (2004). Nuevos materiales de titanosaurios (Sauropoda) en el Cretácico Superior de Mato Grosso, Brasil [New materials of titanosaurs (Sauropoda) from the Upper Cretaceous of Mato Grosso, Brazil]. Revista Brasileira de Paleontologia. 7(3): 329-336.
  9. França, M.A.G.; Marsola, J.C.d A.; Riff, D.; Hsiou, A.S.; Langer, M.C. (2016). "New lower jaw and teeth referred to Maxakalisaurus topai (Titanosauria: Aeolosaurini) and their implications for the phylogeny of titanosaurid sauropods". PeerJ 4: e2054. doi:10.7717/peerj.2054. PMID 27330853. 
  10. Silva, J.C.G. Jr.; Marinho, T.S.; Martinelli, A.G.; Langer, M.C. (2019). "Osteology and systematics of Uberabatitan ribeiroi (Dinosauria; Sauropoda): a Late Cretaceous titanosaur from Minas Gerais, Brazil". Zootaxa 4577 (3): 401–438. doi:10.11646/zootaxa.4577.3.1. PMID 31715707. https://www.teses.usp.br/teses/disponiveis/59/59139/tde-24032023-100056/. 

Wikidata ☰ Q2334389 entry