info:eu-repo/semantics/article
First osteological record of a stegosaur (Dinosauria, Ornithischia) from the Upper Jurassic of South America
Fecha
2021-01Registro en:
Rauhut, Oliver Walter Mischa; Carballido, José Luis; Pol, Diego; First osteological record of a stegosaur (Dinosauria, Ornithischia) from the Upper Jurassic of South America; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 40; 6; 1-2021; 1-11
0272-4634
CONICET Digital
CONICET
Autor
Rauhut, Oliver Walter Mischa
Carballido, José Luis
Pol, Diego
Resumen
A stegosaurian humerus from the Oxfordian–Tithonian(?) Cañadón Calcáreo Formation of Chubut, Argentina, extends the fossil record of this clade of thyreophoran ornithischian dinosaurs to the Upper Jurassic of South America. The element shares the derived character of an oblique ridge extending from the deltopectoral crest towards the medial distal condyle with taxa such as Kentrosaurus and Stegosaurus and thus represents a derived representative of the clade. The presence of stegosaurs in the Cañadón Calcáreo Formation underlines the similarities of its dinosaur fauna with other Late Jurassic dinosaur faunas, such as the Morrison Formation of North America or the Tendaguru Formation of Tanzania, in at least broad systematic terms.