Figure 11: Pinda Group. A-D) Dolograinstone with a large echinoid spine : A) TL transmitted light; B) PL polarized light (analyzed); C-D) ERL enhanced reflected light. E-F) Dolograinstone with an echinoid theca : E) TL transmitted light; F) PL polarized light (analyzed). For confidentiality purposes the sample depths and the name of wells are not provided.