Distorted calcite Promicroceras ammonite display piece (31 mm)
Distorted calcite Promicroceras ammonite display piece (31 mm)
Distorted calcite Promicroceras ammonite display piece (31 mm)
Distorted calcite Promicroceras ammonite display piece (31 mm)
Distorted calcite Promicroceras ammonite display piece (31 mm)
Distorted calcite Promicroceras ammonite display piece (31 mm)
Distorted calcite Promicroceras ammonite display piece (31 mm)
Distorted calcite Promicroceras ammonite display piece (31 mm)
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Distorted calcite Promicroceras ammonite display piece (31 mm)

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A stunning example of an ammonite fossil of the species Promicroceras planicosta from the world-famous Jurassic Coast beach of Lyme Regis, Dorset UK.

The piece of limestone matrix measures 76 mm (3 inches) across and the fossil ammonite measures 31 mm (1.22 inches) across. The ammonite is very well preserved and has been prepared out of the rock to reveal the whole shell. The ribs are very finely defined, and the pale yellow colour is beautiful. There is some very unusual deformation in the way the whorls of the shell grew, likely around a piece of grit that was lodged in the shell. A great example of the species and impressive in the flesh. The fossil weighs 280 grams and has a cut flat base to allow it to stand freely for display.

Around 196 million years old (Sinemurian, Early Jurassic), this fossil would make a wonderful addition to any collection.