29 cm Septarian Nodule with Ammonites, Charmouth, Jurassi

This piece of Stellare nodule ammonite bed is from Stone Barrow, Charmouth. It contains Promicroceras, Xiphoceras and Cymbites ammonites. The calcite walls are a result of the septarian preservation. These indicate where the nodule cracked when deep underground and subsequencly over time filled with calcite.
 
It measures approximately 29 cm in height and is 195 million years old!  .
 
No repairs or restoration
 
The piece originates from the Stellare Septarian nodule bed. 
 
Lower Sinemurian, Black Ven Mudstone Member, Charmouth Mudstone Formation, Charmouth, Dorset. 195 MYA