I was going to say those look like septarian nodules, and according to the linked article it turns out that’s just what they are - but with a coprolitic surprise inside! Not all coprolites are embedded in concretions like that.
I was going to say those look like septarian nodules, and according to the linked article it turns out that’s just what they are - but with a coprolitic surprise inside! Not all coprolites are embedded in concretions like that.
