Malformed ammonite
Hokkaido
The specimen in the picture is winded 3-dimensionally.
This is not abnormal. It is one of the various ways of winding.
財）石の博物館TM
Kiseki Museum
Collection Photo Album
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Malformed ammonite Hokkaido |
| Familiar shape of ammonites is basically planospiral. The specimen in the picture is winded 3-dimensionally. This is not abnormal. It is one of the various ways of winding. |
