Figure 3
Proposed internally consistent nomenclature for the osseous portion of the carotid circulation system of turtles as exemplified on the skull of Dracochelys bicuspis (IVPP V4075). Abbreviations: bo: basioccipital, bs: basisphenoid, fpp: foramen palatinum posterius, mx: maxilla, pal: palatine, pmx: premaxilla, pt: pterygoid, qu: quadrate, vo: vomer.