Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil agadir ammonite glossy black surface and naturally

glossy black surface and naturally grounding vibration

Sericho contains iron and should be stored in a dry environment to reduce oxidation

ensuring authenticity and quality

Citrine empowers personal strength

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil agadir ammonite glossy black surface and naturallyA 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