The Collaborative International Dictionary of English v.0.48:
Latimeridae \Latimeridae\ prop. n. A natural family of fish extinct except for the coelacanth. Syn: family Latimeridae. [WordNet 1.5]WordNet (r) 3.0 (2006):
Latimeridae n 1: extinct except for the coelacanth [syn: Latimeridae, family Latimeridae]