| A relevant example is that of spiral sculpture in the gastropod Nucella emarginata, which ranges from strongly sculptured to smooth. |
| It is a marine gastropod that swims by rhythmically flapping its wing-like parapodia. |
| The fluid, lolloping gait of the bearded gastropod demands the use of reins by the rider both for balance and for control. |
| Likewise, I found no increase in gastropod richness from the Campanian to the Eocene. |
| The columellar location of the gastropod retractor muscle is thought to be an effect of torsion. |
| The gastropod assemblage suggests an Albian age and the echinoid assemblage reportedly indicates a late Albian age. |
