Coroniceras
sp. Hyatt 1867.
Devonshire
Coast, west of Lyme Regis.
Family ARIETITIDAE Hyatt, 1874 Subfamily ARIETITINAE
Hyatt, 1874
Lower Sinemurian.
 |
|
|
|
Coroniceras
sp. Hyatt 1867.
|
|
|
Devonshire
Coast, west of Lyme Regis.
|
|
|
Family ARIETITIDAE Hyatt, 1874 Subfamily ARIETITINAE
Hyatt, 1874
|
|
| A Sub zone ammonite of the
Arnioceras semicostatum zone, Lower Sinemurian. |
|
| Venter arched, with single tall keel, no sulci. Ribs few and strong. | |
|
|