THE SUTURE LINE
FILIGREE BEAUTY

The chambers of the ammonite case are separated from each other by walls. However, these partitions are not simply straight, but increasingly branched towards the outside. Where they meet the outer wall of the ammonite, they are often bizarrely branched.

If the shell of the fossil ammonite is removed, this so-called suture line, which traces the contact of the chamber septum with the outer shell, is clearly visible.

Many of the most beautiful ammonite finds are characterised by this magnificent pattern. They are among the most sought-after collector’s and decorative objects of all.