plural noun
Platy·ster·ni·dae | \ˌplatēˈstərnəˌdē\

Definition of Platysternidae 

: a family of Asiatic freshwater turtles (suborder Cryptodira) including a single species (Platysternon megacephalum) characterized by a relatively huge head with hooked mandibles and a very long tail

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History and Etymology for Platysternidae

New Latin, from Platysternon, genus name of Platysternon megacephalum (from platy- + Greek sternon chest, breast) + -idae

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