Crinoid with Orthoceras and Ammonite - Plaque - Fossil Quality:Staff Pick Ammonites are especially important in

Ammonites are especially important in paleontology because they are widely used to help date marine rock layers

uninterrupted crystal growth

using long feather-like arms to capture microscopic food particles drifting in the ancient seas

It is extremely dense - the specimens have an extremely satisfying weight to them

Crinoid with Orthoceras and Ammonite - Plaque - Fossil Quality:Staff Pick Ammonites are especially important inMined from: Erfoud area, Anti Atlas region, Dra Tafilalet, Morocco Era: Devonian Geological Age: 360400 mya Description: This fossil plaque from Morocco features a mix of preserved marine life, including crinoid material, orthoceras, and ammonite forms set into a polished stone surface. The plaque shows strong contrast between the darker limestone matrix and the lighter fossil sections, making the different shapes easy to pick out. Straight orthoceras