Strengthen courage and inner harmony

If you're working through emotional sensitivity

Amplifies manifestation and intention setting

Releases imbalances and negative energies

and aligned action

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Crown Chakra Earrings Strengthen courage and inner harmonyA 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