Four specimens. Top Left, small Promicroceras approx. 15mm diam, filled with white/clear calcite. Top right, Dactylioceras commune from the Yorkshire coast, around 70mm diameter. Bottom left, What looks like a very nice white calcite Promicroceras about 25mm diam. Should also be an easy one to prepare. Bottom right, a piece of popcorn stone (100mm X 65mm). Contains many small ammonites. Will be mainly Promicroceras but also can contain Cymbites, Microderoceras and Caenisites. Some ammonites also on the reverse of this piece.
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