Rare PROMICROCERAS PLANICOSTA Ammonite Fossil Block - Black Ven Marls, Lower Lias, Jurassic Coast: Black Ven, Lyme Regis, Dorset, UK
This listing features an exceptional Promicroceras planicosta ammonite fossil block, sourced from the Black Ven Marls of the Lower Lias, Jurassic Coast, Lyme Regis, Dorset, UK. Known for its exceptional fossil preservation, the Black Ven Marls have yielded some of the finest Jurassic ammonites in the world. This particular specimen comes from the Alice Purnell Collection, one of the most prestigious ammonite collections globally.
Promicroceras planicosta is a species of ammonite from the Sinemurian stage of the Early Jurassic. These small but highly detailed ammonites are known for their elegant ribbing, tight coiling, and distinctive whorl structure. As extinct marine cephalopods related to modern squid and cuttlefish, they thrived in shallow Jurassic seas over 190 million years ago. Their fossils are widely sought after due to their beautifully preserved intricate details and scientific importance in studying Jurassic marine ecosystems.
Scale rule squares = 1cm. Please refer to the photos for full sizing.
This fossil block is an outstanding addition to any collection, ideal for those passionate about paleontology, historical geology, and ammonite evolution. Whether you’re an amateur collector, a researcher, or looking for a striking display piece, this Promicroceras planicosta ammonite fossil block is an excellent investment in natural history.
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This is a rare opportunity to acquire an authentic Promicroceras planicosta ammonite fossil block from one of the world's most famous fossil sites.