or a unique decorative piece

Penetration twin of two pentagonal dodecahedrons

2 - Resins/Gums

Capricorn – Enhances discipline

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil breezy vibe that clears mental fog or a unique decorative pieceA 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