Main biotic and climatic events in Early Permian of the Western Urals, Russia, as exemplified by the shallow-water biota of the early Kungurian lagoons

On abnormal Carcinoscorpius rotundicauda (Latreille, 1802) (Chelicerata: Xiphosurida) from the Indian Sundarbans and possible conservation directions

“…Major anthropogenic threats are highlighted, with the aim of illustrating the key directions needed to conserve the unique mangrove horseshoe crab in the Indian Sundarbans. [Naugolnykh, 2018;Bicknell, 2019c;Bicknell, Pates, 2020a;, there are only four extant horseshoe crabs species. These are the American horseshoe crab -Limulus polyphemus (Linnaeus, 1758), a species found along the eastern North America coast -and the three species restricted to Indo-Pacific region: Tachypleus tridentatus (Leach, 1819), T. gigas (Müller, 1785), and Carcinoscorpius rotundicauda (Latreille, 1802) [Shuster Jr., 1982].…”