Paralligator

Paralligator is an extinct genus of neosuchian crocodylomorph that lived during the Late Cretaceous (Cenomanian-Maastrichtian) period in what is now the Bayan Shireh and Nemegt formations of Mongolia, approximately 96 million to 70 million years ago.

== Description == P. gradilifrons reached up to in length. The cerebral hemispheres are the widest portions of the endocast of Paralligator; they are approximately 2.5 times wider than the olfactory tract and about 1.5 times wider than the midbrain and the portion corresponding to the medulla oblongata. The olfactory complex is as long as the remainder of the endocast and is thus highly anteroposteriorly elongated. The olfactory tract of Paralligator is transversally narrow and highly elongated, and it expands posteriorly into the cerebral hemispheres and anteriorly into the olfactory bulbs, which are paired and are divided by the mesethmoid facet, diverging anteriorly at an angle of approximately 25°–30°. Posterior to the cerebral hemispheres lies the mesencephalic portion of the endocast, which is notably constricted when observed from a dorsal view. Posterior to the mesencephalic portion of the endocast lies the anterior portion of the rhombencephalon, consisting of the pons and cerebellum; this section is notably laterally and dorsoventrally expanded. The flocculus is not developed. The medulla oblongata is wider lateromedially than it is deep.