''Mariceras'' is a genus of Late Carboniferous to Early Permian nautilids found in North America and central Asia. Its shell is like that of '' Schyphoceras'' but is less curved and smoother.

References

''Mariceras''
Fossilworks entry. * Bernhard Kummel, 1964. Nautiloidea-Nautilida. Treatise on Invertebrate Paleontology, Part K. Geological Society of America. Prehistoric nautiloid genera Pennsylvanian first appearances Cisuralian genus extinctions {{paleo-nautiloidea-stub