Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil grounding and protective stone Encourage empathy and harmony in

Encourage empathy and harmony in relationships

these meteorites are composed primarily of iron (~92%) and nickel (~6

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Authenticity & Provenance

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil grounding and protective stone Encourage empathy and harmony inA 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