FIG. 25. Vombatus ursinus TMM M-2953 in Transverse Canal Foramen And Pericarotid Venous Network In Metatheria And Other Mammals

FIG. 25. Vombatus ursinus TMM M-2953 (Vombatidae, Diprotodontia), adult caudal cranium, selected coronal segments in rostrocaudal order (data source, table 2). In A–C, large transverse canals meet in midline junction (cf. Phascolarctos, Aplin, 1990: 255). In D–G, note large right and left conduits for caudal branches of transverse canal, traceable bilaterally from caudal branch foramen in endocranial carotid groove to terminus in transverse canal trunk. Key: AS, alisphenoid; BS, basisphenoid; cbs, sulcus for caudal branch, leading into caudal branch foramen; cbtc, canal for caudal branch of transverse canal; cc, carotid canal; cpc, craniopharyngeal canal; cpf, craniopharyngeal foramen; ctbs, caudal portion of transverse basisphenoid sinus; encf, endocranial carotid foramen; encg, endocranial carotid groove; excf, exocranial carotid foramen; hpf,