Mazapilitinae is a subfamily of Upper Jurassic ammonites included in the Oppeliidae. Shells are involute; venter rounded or gently tabulate; ribbing coarse, fold-like, branching.W.J. Arkell et al., 1957 Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press.
Genera include Mazapilites, Submazapilites, and Eurynoticeras, which have been found in Kimmeridgian age marine sediments in southern Europe and Mexico.
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