Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Red Aventurine or anyone seeking to add

or anyone seeking to add a touch of luxury and meaning to their pieces

As a natural stone

This exquisite collection features carefully selected crystals

supporting emotional release

Gold Tigers Eye

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Red Aventurine or anyone seeking to addA beautifully preserved specimen of Promicroceras planicosta, fully replaced by calcite. This ammonite displays fine ribbing and its characteristic planispiral coiling. As a key index fossil of the Lower Jurassic Sinemurian, Promicroceras is highly significant for ammonite biostratigraphy in the UK. An excellent choice for collectors, researchers, or curated display. Stratigraphic Context Lower Lias Group, Obtusum Zone Chronostratigraphy Lower