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Most known only in fossil form
Answer for the clue "Most known only in fossil form ", 15 letters:
crossopterygian
Alternative clues for the word crossopterygian
Word definitions for crossopterygian in dictionaries
WordNet
Word definitions in WordNet
n. any fish of the order Crossopterygii; most known only in fossil form [syn: lobefin , lobe-finned fish ]
Wiktionary
Word definitions in Wiktionary
a. (context zoology English) Of or pertaining to the Crossopterygii. n. (context zoology English) One of the Crossopterygii.
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Crossopterygian \Cros*sop`ter*yg"i*an\ (kr?s-s?p`t?r-?j?-an), a. (Zo["o]l.) Of or pertaining to the Crossopterygii. -- n. One of the Crossopterygii. [1913 Webster] ||