Bigotites is strongly ribbed, round-whorled perisphinctid ammonitic cephalopod from the middle Jurassic with a smooth band along the outer edge of the shell.
References
Notes
Bibliography
- Treatise on Invertebrate Paleontology, Part L; Ch. Mesozoic Ammonoidea. Geological Soc of America and U Kansas Press, R.C Moore (ed)