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Extinct group of bony-plated fishes with primitive jaws
Answer for the clue "Extinct group of bony-plated fishes with primitive jaws ", 10 letters:
placodermi
Word definitions for placodermi in dictionaries
Wikipedia
Word definitions in Wikipedia
Placodermi (from the Greek πλάξ = plate and δέρμα = skin, literally " plate -skinned") is an extinct class of armoured prehistoric fish , known from fossils , which lived from the Silurian to the end of the Devonian Period. Their head and thorax were covered ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Placodermi \Plac`o*der"mi\, n. pl. [NL., fr. Gr. pla`x, plako`s, a tablet + de`rma skin.] (Paleon.) An extinct group of fishes, supposed to be ganoids. The body and head were covered with large bony plates. See Illust. under Pterichthys , and Coccosteus ...