Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil crystal bracelet display The polished exterior reveals beautiful

The polished exterior reveals beautiful swirling tones of turquoise

these phases symbolise beginnings

and irrational mood swings

balancing energy

inspired by ancient Egyptian step pyramids

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil crystal bracelet display The polished exterior reveals beautifulA 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