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[dinosaur] Late Jurassic plesiosaur in Antarctica:

Ben Creisler

A new paper:

Jose P. OâGorman, Soledad Gouiric-Cavalli, Roberto A. Scasso, Marcelo. Reguero, Juan J. Moly &Â Leonel Acosta-Burlaille (2018))Â
A Late Jurassic plesiosaur in Antarctica: Evidence of the dispersion of marine fauna through the Trans-Erythraean Seaway?
Comptes Rendus Palevol (advance online publication)

During the Jurassic two main marine pathways might act as dispersion routes for vertebrates and invertebrates between Laurasia and Gondwana: the Caribbean Seaway (between North and South America) and the Trans-Erythraean Seaway (splitting Africa from India, Madagascar). The former has proven to be of relevance as a dispersion route for marine vertebrates and invertebrates between the Tethys and Pacific margin of Gondwana. Nevertheless, little is known about the role of the Trans-Erythraean Seaway as a vertebrate dispersion pathway. The Trans-Erythraean Seaway divides the eastern and western South of Gondwana landmasses in the so-called break-up of Gondwana and connects the Tethys Sea with the Palaeo-Pacific. We describe a newly recovered plesiosaur specimen from the Ameghino (= NordenskÃld) Formation, Antarctic Peninsula, the first Jurassic plesiosaur from Antarctica. We discuss the importance of this record regarding the hypothesis of marine vertebrate dispersion through the Trans-Erythraean Seaway.

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