Sheltered preservation of cyrtocrinid crinoids from the Lower Cretaceous of Madagascar and their palaeogeographic significance
Journal: Journal of Palaeogeography
Year: 2022

Sheltered preservation, in which organisms are trapped within shells of cephalopods, is a well-known phenomenon. This preservational style constitutes an important source of paleontological data. Here, we report the first crinoid preserved inside the early Albian ammonite Cleoniceras besairiei Collignon from Madagascar. This crinoid is assigned to the aspidocrinid phyllocrinid (Apsidocrinus, Phyllocrinidae), and constitutes the first phyllocrinid from the African continent, the second from the s