ˌ ̷ ̷ ̷ ̷ ̷ ̷ˈdäntəˌdē noun plural
Usage: capitalized
Etymology: New Latin, from Petalodont-, Petalodus, type genus + -idae
: a family of Carboniferous and Permian elasmobranchs (subclass Holocephali) related to the rays and having peculiar flattened petaloid teeth and greatly enlarged pectoral fins — see petalodus