Alsatites
liasicus, D'Orbigny 1844
Sutton Hill
Quarry, Somerset
Family PSILOCERATIDAE Hyatt 1867
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Alsatites
liasicus, D'Orbigny 1844
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Sutton Hill
Quarry, Somerset
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Family PSILOCERATIDAE Hyatt 1867
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| A zone ammonite from the Hettangian Stage.. | |
| Extremely evolute, many whorled, keel broad and blunt. primary ribbing close and persistant. | |
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