Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil GeoFossils Meteorite Specimen Place the Chrysocolla Medium Oval

Place the Chrysocolla Medium Oval in your workspace or home to promote calm communication and emotional balance

Tree Agate is a deeply nourishing stone connected to the natural rhythms of the Earth

and intuitive decision-making

where it helps restore calm

If you’re a Gemini or Libra

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil GeoFossils Meteorite Specimen Place the Chrysocolla Medium OvalA 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