Fossils of them are found all around the world, sometimes in very large concentrations ... also known as the true ammonites. These animals are known from the Jurassic Period, from about 200 million ...

The Jurassic Coast in southern England is a UNESCO World Heritage Site and one of ... It is home to a wide variety of marine fossils, including ammonites and ichthyosaurs. You can explore the ...

Some ammonites had spines for defence and others would have had ornamentation that may have served to strengthen their shells. Around 180 million years ago in the Jurassic period, Dactylioceras lived ...

This was the Jurassic, which took place 199 to 145 million ... Fishlike ichthyosaurs, squidlike cephalopods, and coil-shelled ammonites were abundant. Coral reefs grew in the warm waters, and ...

Mr Wonfor, who runs Wight Coast Fossils which provides guided tours on the island, said it's particularly rare to find an ammonite with ... for her discoveries in Jurassic marine fossil beds ...