14cm multi ammonite bed, Promicroceras and others Lower Sinemurian, Charmouth
The ammonite bed measures 14 cm across it's widest part, it has multiple promicroceras and cymbites ammonites. Under high magnification the majority of the calcite matrix behind the larger ammonites is formed of microconch ammonites!
The piece originates from the popcorn stone and was found on Charmouth beach, Jurassic coast, UK.
Lower Sinemurian, Black Ven Mudstone Member, Charmouth Mudstone Formation, Charmouth, Dorset. 195 MYA
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