| In D. herschelensis, the concavity of the articular face of the vertebrae is not as deep as in P. latipinnis. |
| Scanning electron micrographs of the discs of the tube feet of Odontaster validus revealed varying degrees of concavity. |
| There is a characteristic anterior pointing and medial concavity of the frontal horns, seen on the coronal scans. |
| The labial surfaces of the plates are smooth, slightly convex both mesially and distally with a shallow concavity between. |
| Then the T wave becomes broad and the ST segment elevates, losing its normal concavity. |
| It only reflects the consequence of an empirical fact, the degree of concavity of individual utility functions. |
