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| Mateus,Octávio; Jacobs,Louis L.; Schulp,Anne S.; Polcyn,Michael J.; Tavares,Tatiana S.; Buta Neto,André; Morais,Maria Luísa; Antunes,Miguel T.. |
| A forelimb of a new sauropod dinosaur (Angolatitan adamastor n. gen. et sp.) from the Late Turonian of Iembe (Bengo Province) represents the first dinosaur discovery in Angola, and is one of the few occurrences of sauropod dinosaurs in sub-Saharan Africa collected with good chronological controls. The marginal marine sediments yielding the specimen are reported to be late Turonian in age and, thus it represents a non-titanosaurian sauropod in sub-Saharan Africa at a time taken to be dominated by titanosaurian forms. Moreover, Angolatitan adamastor is the only basal Somphospondyli known in the Late Cretaceous which implies in the existence of relict forms in Africa. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Angola; Cretaceous; Turonian; Dinosaurs; Sauropoda; Angolatitan. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000100012 |
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| Delcourt,Rafael; Azevedo,Sergio Alex Kugland de; Grillo,Orlando Nelson; Deantoni,Fernanda Oliveira. |
| Triassic dinosaurs of Brazil are found in Santa Maria and Caturrita formations, Rio Grande do Sul state, Brazil. There are three species known from the Santa Maria Formation (Staurikosaurus pricei, Saturnalia tupiniquim and Pampadromaeus barberenai), and two from Caturrita Formation (Guaibasaurus candelariensis and Unaysaurus tolentinoi). These dinosaur materials are, for the most part, well preserved and allow for descriptions of musculature and biomechanical studies. The lateral rotation of the Saturnalia femur is corroborated through calculations of muscle moment arms. The enhanced supracetabular crest of Saturnalia, Guaibasaurus, Staurikosaurus, Herrerasaurus ischigualastensis, Efraasia minor and Chormogisaurus novasi suggests that basal dinosaurs may... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dinosaurs; Triassic; Biomechanics; Articulation; Mass. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492012002900001 |
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