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New mosasaur species (Eonatator coellensis) from Colombia (free pdf)



Ben Creisler
bcreisler@gmail.com

My repeated attempts today to post this to the DML have failed--so I
will try again with a new subject line. Don't know what the issue
is...

***

Many thanks to Vahe Demirjian for bringing this paper from late last
year to my attention. It has not been mentioned on the DML. It adds a
new species to the mosasaur Eonatator Bardet & Pereda Suberbiola,
2005--Eonatator coellensis Páramo, 2013. The specimen includes small
vertebrae preserved in the pelvic region, additional evidence of live
birth in mosasaurs. The pdf is in open access. The text is in Spanish.


María E. Páramo-Fonseca (2013)
Eonatator coellensis nov. sp. (Squamata: Mosasauridae), a new species
from the Upper Cretaceous of Colombia.
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y
Naturales 37(145): 499-518
http://www.accefyn.org.co/revista/Vol_37/145/499-518.pdf

In this study a new mosasaur found in Colombia is given out. The
fossil was extracted from Campanian rocks, North of the town of
Coello, Tolima Department. It is a nearly complete articulated
skeleton with soft tissue remains preserved in its cavities. It was
determined as a new species of the genus Eonatator, E. coellensis,
based on the systematics proposed in 2005 by Bardet and others. The
anatomy of the anterior part of the skull, as well the morphology and
the inter-relationships of the bones of the pelvic girdle and limbs,
constitute a new contribution to the genus definition. The Colombian
specimen represents the most complete halisaurine mosasaur known so
far in the world, and provides new evidence of ovoviviparity in
mosasaurs.