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.]
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Indo-European & Semitic Roots Appendices
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