Figure 2. A in Sculpture and vascularization of dermal bones, and the implications for the physiology of basal tetrapods

Figure 2. A, Eryops megacephalus (Temnospondyli, Eryopidae), MCZ 3233, cast. Irregular polygonal sculpture in the interorbital region. B, Dvinosaurus primus (Temnospondyli, Dvinosauria), PIN 156/10. Posterior part of skull table with radial sculpture. C, Metoposaurus fraasi (Stereospondyli, Trematosauroidea), UCMP 27103. Posterior portion of interclavicle with radial sculpture. D, Thoosuchus jakovlevi (Stereospondyli, Trematosauroidea), SMNS 80064. Close-up of the radial sculpture on the postfrontal, with imprints of vessels within the sculptural furrows. E, Panderichthys rhombolepis (stem tetrapod, Elpistostegalia), MB.f.17548. SEM photograph of tubercular sculpture of dermal bone of the skull or pectoral region. F, Chroniosaurus dongusensis (Chroniosuchia, Chroniosuchidae), PIN 3713/38. Close-up of tubercular sculpture on the parietal. For abbreviations, see text.