top of page
28mm Calcite Promicroceras sp. showing Geopetal Structure

28mm Calcite Promicroceras sp. showing Geopetal Structure

SKU: AM0009

This ammonite was collected near Charmouth, Dorset, on the Jurassic Coast and has been prepared using a combination of air chisel and abrasive techniques.  The matrix has also been cut to allow the rock to stand up without the need for a display stand.  


Sediment trapped in the shells of ammonites can sometimes indicate which side of the animal was facing when it was fell to the seabed. This specimen has accumulated sediment within the calcite crystal on the side of the shell that is photographed, telling us that this was the side of the shell facing the seabed when it was first buried ~195 million years ago.


Diameter of Ammonite: 28mm 

Age: Jurassic, Lower Lias (~195 million years old) 

Dimensions of Matrix (mm): 56x78x10


    If you are unhappy with your purchase for any reason then please get in touch within 14 days of receiving your goods. If items are returned to us in their original (undamaged, as sent) condition within 14 days of you telling us you wish to return the order, we will issue a full refund.


    All orders below 2kg are sent through Royal Mail.

    The cost of postage is calculated at checkout. Royal Mail 1st Class, 1st Class Signed For, and UK Guarenteed Next Day (1pm) Delivery options are provided at checkout. 

    If you wish to make an order containing large or heavy items, please feel free to contact to discuss courier options at

bottom of page