A stunning example of an ammonite fossil of the species Promicroceras planicosta from the world-famous Jurassic Coast beach of Charmouth, Dorset UK.
The ammonite measures 30 mm (1.2 inches) across, which is a good size for this species. The ammonite sits in one of two pieces of limestone matrix that measure 127 mm (5 inches) across. This is a classic "popped" stone, where the rock has been split to reveal both the positive cast of the shell and the negative impression. The two pieces fit back together with a surprise inside! The ammonite is very well preserved and has been prepared out of the rock to reveal the shell. The ribs are very finely defined, and the mix of yellow, brown, and grey colours is beautiful. A great example of the species and impressive in the flesh.
These calcite ammonites make great unique gifts for the nature lover in your life! The combined weight of the two pieces is 930 grams.
Around 196 million years old (Sinemurian, Early Jurassic), this fossil would make a wonderful addition to any collection.