Extended Data Fig. 4: Cranial foramina and sinuses in the braincase of C. wahkarmoosuch. | Nature

Extended Data Fig. 4: Cranial foramina and sinuses in the braincase of C. wahkarmoosuch.

From: Late-surviving stem mammal links the lowermost Cretaceous of North America and Gondwana

Extended Data Fig. 4

a, Line drawing of the posterior skull in right oblique (anterolateral) view. b, Computed tomography transparency of the skull in left oblique view, showing the prootic sinus and associated branches of the stapedial artery (light green). d m, diploetica magna; r i, stapedial artery (ramus inferior); r s, stapedial artery (ramus superior); r t, ramus temporalis; V1, orbital vacuity (hypothesized exit for ophthalmic branch of trigeminal nerve); V3, foramen pseudovale (hypothesized exit for mandibular branch of trigeminal nerve).