FIG. 34. Notoryctes typhlops AMNH M–202103 in Transverse Canal Foramen And Pericarotid Venous Network In Metatheria And Other Mammals

FIG. 34. Notoryctes typhlops AMNH M–202103 (Notoryctidae, Notoryctemorphia), adult caudal cranium in A, ventral, and B, oblique lateral views. In A, note internal subdivision within carotid groove (asterisk), assumed to separate internal carotid neurovascular bundle from channel for caudal branch of transverse canal. Key: astp, tympanic process of alisphenoid; BO, basioccipital; BS, basisphenoid; cspf, craniospinal foramen; eam, external acoustic meatus; evpf, extracranial extention of ventral petrosal sinus; evpf + jf, joint aperture for extracranial extension of ventral petrosal sinus and internal jugular vein; excf, exocranial carotid foramen; fm, foramen magnum; fo, foramen ovale; gf, mandibular fossa; jf, jugular foramen; ptpf, foramen for nerve of pterygoid canal; rchf + cchf, joint aperture for rostral and caudal condylohypoglossal foramina; sof, sphenooccipital fissure; stmf, stylomastoid foramen; tcf, transverse canal foramen; tmc, tympanic cavity.