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Oxynticeras
oxynotum. Hyatt, 1875
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BlackVen Marl,
Stonebarrow, Charmouth, Dorset Coast
Family OXYNOTICERATIDAE Hyatt 1875
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BlackVen Marl,
Stonebarrow, Charmouth, Dorset Coast
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Family OXYNOTICERATIDAE Hyatt 1875
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| A Zone ammonite of the Upper Sinemurian substage. | |
| Venter sharp,umbilicus moderatly open, umbilical slope gentle, ribbing fades on middle whorls sides, often in pyrite, ofen internal cast as above. Sutures long ventral lobe. Size 1.75 cm across. | |
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