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D & A long bases, similar, I-III spinestail base slender
C v concave/forkedtop jaw bone: wide, scaly, exposedpectorals - long, narrow wingsscales - large, often spiny -
deep, compressed, top & bottom profiles similarsnout blunt, short; small mouth
eye with fatty ringD & A I-IV, >30, symmetrical, scale coveredno pelvics