Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil crystal bracelet display inspired by ancient Egyptian step

inspired by ancient Egyptian step pyramids

and connection to Earth’s natural history

enhancing both its visual appeal and energetic flow

balancing energy

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil crystal bracelet display inspired by ancient Egyptian stepA 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