Just out | Basicranium of an elasmosaurid plesiosaur from the Campanian of European Russia @ Alcheringa


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Basicranium of an elasmosaurid plesiosaur from the Campanian of European Russia


Author(s)

Nikolay G. Zverkov, Alexander O. Averianov & Evgeny V. Popov


Abstract:

The braincase of elasmosaurid plesiosaurs is poorly known. Here, we describe the exceptionally well-preserved elasmosaurid basicranium from the Rybushka Formation (lower Campanian) of Saratov Province, Russia. The material provides new anatomical information and peculiar features: single anterior foramen for the cerebral carotid arteries, anteroposteriorly elongated sella turcica and deep canal on the basioccipital process. This allow us to reconstruct a carotid circulation in plesiosaurs and propose new basicranial features (anteroposteriorly elongated sella turcica and single anterior foramen for the cerebral carotids), which could be potentially synapomorphic for a clade within the Elasmosauridae.


READ IT HERE:

http://www.tandfonline.com/doi/full/10.1080/03115518.2017.1302508

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