n. Any of various lobe-finned fishes, including the coelacanths but usually not the lungfishes. No longer in scientific use. [From New Latin Crossopterygiī, group name : Greek krossoi, fringe (from krossōtos, fringed, from krossai, projecting stone blocks) + Greek pterugia, fins, pl. diminutive of pterux, pterug-, wing; see PTERYGOID.] cros·sop′te·rygi·an adj. |
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