Starfish first appeared in the fossil record in the Cambrian. The first known asterozoans were the Somasteroidea, which exhibit characteristics of both groups. Starfish are infrequently found as fossils, possibly because their hard skeletal components separate as the animal decays. Despite this, there are a few places where accumulations of complete skeletal structures occur, fossilized in place in Lagerstätten — so-called "starfish beds". By the late Paleozoic, the crinoids and blastoids were the predominant echinoderms, and some limestones from this period are made almost entirely from fragments from these groups. In the two major extinction events that occurred during the late
HMS Starfish (1916) "Starfish" had transferred to the Gunnery School at the Nore, and in March was supporting the torpedo school at the Nore, while by November she had transferred to the Nore Local Defence Flotilla. On 21 April 1928, "Starfish" was sold for scrap to Alloa of Charlestown. HMS Starfish (1916) HMS "Starfish" was an destroyer which served with the Royal Navy. She was launched on 27 September 1916 and sold to be broken up on 21 April 1928. She was built by Hawthorn Leslie of Hebburn Tyne. "Starfish" was one of ten destroyers ordered by the British Admiralty in December 1915