References
Reference
O'Gorman, José P et. al. (2014) Elasmosaurs (Sauropterygia, Plesiosauria) from the La Colonia Formation (Campanian�Maastrichtian), Argentina; Alcheringa: An Australasian Journal of Palaeontology, 37(2), pp.259-267
Elasmosaurs (Sauropterygia, Plesiosauria) from the La Colonia Formation (Campanian�Maastrichtian), Argentina
Principal Author
José P O'Gorman
Other Authors
Leonardo Salgado, Julio Varela, Ana Parras
Header
Academic paper
Journal
Alcheringa: An Australasian Journal of Palaeontology
Volume
37
Issue
2
Pages
259-267
Abstract
Elasmosaur postcranial remains from the La Colonia Formation (Campanian�Maastrichtian), Chubut Province, Patagonia, Argentina, are described. The new material has small dimensions and caudal vertebrae with parapophyses strongly projected laterally�characters shared with some Elasmosauridae indet. from the coeval Allen Formation, Río Negro Province, Argentina. These features reinforce the similarities between the plesiosaur faunas to the north and south of the Somún Curá Plateau. The small size of these elasmosaurs may be palaeoecologically related to the marginal marine depositional environment of the sedimentary host rocks.
Keywords
Allen Formation, Upper Cretaceous, Elasmosauridae, Patagonia, palaeoecology
Language
English