Dentition that shows a variety of teeth adapted for different functions. Heterodontosauridae Clade of ornithischian dinosaurs, placed with clades Ornithopoda, and limited to the Early Jurassic of South Africa. Identified by heterodont dentition.
type of dentition characterized by two or three small cardinal teeth below the umbo, as well as elongated lateral teeth anterior and posterior to these. The hinge teeth are differentiated into vertical cardinals below the beak (umbo) and sub-horizontal laterals on either side. Most Tertiary and Recent bivalves possess this type of dentition.
The anatomical term heterodont (from Greek, meaning 'different teeth') refers to animals which possess more than a single tooth morphology. For example, members of the Mammalia and Synapsida generally possess incisors, canines ('eyeteeth'), premolars, and molars. The presence of heterodont dentition is evidence of some degree of feeding/hunting specialization in a species.