Nowadays there are only a few types of brachiopods left in the world. In the Jurassic period there were many different types. So look carefully at your finds. You can still find corals in warm tropical seas. The coral fossils of the Cotswolds tell us that the limestone was created in just such a sea.
Corals have a skeleton of calcium carbonate which is easily fossilised.
In some fields in the Cotswolds you can find hundreds of their fossil ancestors. Captain Zeb here. So now you know about Cotswold fossils. There's loads more fun to be had in the Fossils section, just click on the buttons above. But if you want to go back to Kids Ark control deck for a different mission, click on the space hopper.