FIG. 22 in Exceptional Skull Of Huayqueriana (Mammalia, Litopterna, Macraucheniidae) From The Late Miocene Of Argentina: Anatomy, Systematics, And Paleobiological Implications

FIG. 22. Cerebral endocast of Huayqueriana cf. H. cristata IANIGLA-PV 29, in A, left lateral, B, dorsal, and C, ventral views. Abbreviations: cb, cast of cerebellum; cf, circular fissure; crh, cast of cerebral hemisphere; fm, spinal cord exiting foramen magnum; fo, mandibular division of trigeminal nerve (CN V3) transiting foramen ovale; hf, hypoglossal nerve (CN XII) transiting hypoglossal foramen; hyf, cast of hypophyseal fossa; iam, facial and vestibulocochlear nerves (CN VII and CN VIII) transiting internal acoustic meatus; jf, glossopharyngeal, vagus, and accessory nerves (CN IX, CN X, and CN XI) transiting jugular foramen; ms, median sulcus; ob, cast of olfactory bulb; och, optic chiasm; oft, olfactory tract; opt, optic tract (CN II); otcc, cast of orbitotemporal canal; p, pons; pfl, cast of paraflocculus; pl, cast of piriform lobe; rhf, rhinal fissure; sof, oculomotor, trochlear, ophthalmic and maxillary divisions of trigeminal, and abducens nerves (CN III, CN IV, CN V1,2, CN VI) leading to sphenoorbital fissure; ve, cast of vermis. Asterisk (*) indicates depression on right lateral piriform lobe.