Thelodontidae
plural noun
Thel·o·don·ti·dae
ˌtheləˈdäntəˌdē
: a family of Devonian and Silurian ostracoderms that is included among the Heterostraci or isolated in the order Coelolepida
Word History
Etymology
New Latin, from Thelodont-, Thelodus, type genus + -idae