Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil grounding and protective stone nurture empathy

nurture empathy

and the effect of other crystals

Black Spinel is known for its grounding and revitalising properties

Known for its calming and nurturing energy

Authenticity & Provenance

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil grounding and protective stone nurture empathyA 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