An unusual new Bellerophontacean Gastropod from the Ordovician (Whiterockian) of Nevada

D. M. Rohr, and E. L. Yochelson

1990

Article

Journal of Paleontology 64(6):956-960

Find it at:

Taxa discussed in this work:

• Groomodiscus
• Groomodiscus rossi

Taxonomy:

• Groomodiscus belongs to Tropidodiscidae - Rohr and Yochelson (1990)