crossopterygian crossopodia • crossopterygii · · · Info · Definitions · Synonyms · Characters · · crossopterygian · · Text Latin · · Script 15 · · Length 6 · · Syllables Definitions · · · (noun) any fish of the order Crossopterygii; most known only in fossil form. Synonyms: lobefin, lobe-finned fish. · · Noun Definition 1 Synonyms · · · lobefin · · Synonym 1 lobe-finned fish · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079