Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Heart Chakra crystals Connected to the Earth and

Connected to the Earth and Storm elements

Hardness2–2

Amethyst 20

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Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Heart Chakra crystals Connected to the Earth andA 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