Generalized Tetrapod Chondral SkullYour model is disabled. For more details go to Edit properties3D Model
This is a model of a generalized chondral skull (Chondrocranium + Splachnocranium) of a tetrapod vertebrate (although with a very froggy and Pixar character look) that I made to help students understanding its complex morphology. The mandibular arch (I) of the splachnocranium is in green, each palatoquadrate cartilage is relatively complex and articulates with the chondrocranium, in blue, via palatine, basal, and otic processes and, through its quadrate process, with the more simple Meckel’s Cartilage that form all or part of the lower jaw in various vertebrate groups. The most posterior parts of these cartilages, the quadrate and articular processes, transform into ossicles (incus and malleus, respectively) of the middle ear of mammals. In magenta is the dorsal part of the hyoid arch (II), which in tetrapods usually develops into a middle ear ossicle named stapes or columella.