TF0201 - Bellerophon

Specimen Age

Carboniferous

Stratigraphic Range

Silurian to Triassic

Taxonomy

Phylum: Mollusca
Class: Gastropoda
Genus: Bellerophon

Distinctive Features

Coiled shell (planispiral)
One chamber

Preservation

Steinkern
(here an internal cast)

Advanced notes

This specimen resembles an ammonoid, in that it has a planispirally coiled shell. However note that there are no septa and the shell exists as one large chamber, allowing us to identify it confidently as a gastropod.
TF0201 - Bellerophon