K1850 is a microconch ammonite cast assigned to Virgatopavlovia houndstoutensis. Virgatopavlovia is a Late Jurassic genus recognised by its dense ribbing and compressed shell form. #fossils# #ammonite#

This extraordinary ammonite fossil an extinct marine animal that swam in Earth’s oceans between 400 million and 66 million years ago, becoming extinct at the same time as the dinosaurs, inlaid with crystal 📹 lovingthyselfrocksandfossils