44
1
January
157
166
10.1111/1475-4983.00175
PEEL, J. S. 2001. Musculature and asymmetry in a Carboniferous pseudo-bellerophontoidean gastropod (Mollusca). Palaeontology, 44, 1, 157–166.
John S. Peel A single pair of well-preserved muscle attachment scars showing excellent detail on the umbilical surface is described in a supposed bellerophontoidean gastropod from the Carboniferous of Britain. Ontogenetic study reveals that the bilateral symmetry of the thick-shelled adult masks an anisometric early growth stage, indicating that the gastropod is a pleurotomarioidean vetigastropod masquerading as a bellerophontoidean. Wiley Online Library