10 letters · 17 points in Scrabble
noun fish thought to have been extinct since the Cretaceous period but found in 1938 off the coast of Africa
originFrom the New Latin genus name Coelacanthus, from Ancient Greek κοῖλος (koîlos, “hollow”) + ἄκανθα (ákantha, “spine”), referring to the hollow caudal fin rays of the first fossil specimen described and named by Louis Agassiz in 1839.
Etymology from Wiktionary, CC BY-SA 3.0