which is "renowned for its Paleogene fossils dating back over 65 million years," came in third place. In fourth is Seaford Head in East Sussex (head here for echinoids, belemnites, and bivalves ...

There are around 800 extant species and the group has a long and detailed fossil record stretching back about 450 ... Like all echinoderms, echinoids have a skeleton composed of calcitic plates ...

Echinoids are a major group of marine invertebrates with a long fossil record. If you know nothing about the group the obvious place to start is at the Introduction. Here you will find some basic ...