Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Lion’s Gate 2025 The inside of the chest

The inside of the chest is decorated with a few items of pirate booty moulded to the base

and conscious evolution

with occasional green inclusions from natural Malachite

Stands included

letting go of stress

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Lion’s Gate 2025 The inside of the chestA 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