4.3" Asaphid Trilobite in Concretion - Pos/Neg
This is a large, 4.3" long Asaphid trilobite in a sandstone concretion from the Kataoua Formation of Morocco. It has a beautiful orange coloration, is very inflated and both halves of the concretion are included. This is one of the nicer examples of these large Asaphids I've seen. The orange coloration is completely natural, caused by the oxidization of iron pyrite which originally replaced the trilobite. There are a few repaired cracks on both halves, but no restoration.