Lingula from the Arkona Formation

Lingula is a common inarticulate brachiopod that is known from the Cambrian all the way until modern times. It's a primitive creature that can survive in marginal environments. Perhaps this explains why is has persisted throughout time.

This is an example of the genera that I found eroded out of the Arkona Formation.

I featured Lingula in another post last year as seen here.