Description: Jurassic, Bathonian, 170 millions years BP. A large mortality slab showing about forty specimens of Acrosalenia hemicidaroides, (Phylum Echinodermata, Subphylum Echinozoa, class Echinoidea, family Acrosaleniidae) sea urchins with many spines associated; with identifying label. See Kroh, Andreas, Index of Living and Fossil Echinoids, Ann. Naturhist. Mus. Wien, Serie A, 112, June 2010, pp.195-470, for information and further sources. 24 kg, 54cm (21 1/4"). Property of a Kent, UK collector; acquired UK market, 1970-2000; from Neufchateau, Lorraine, France. This mortalitly slab preserves the result of a major event when echinoids of various ages and sizes died together in huge numbers and their remains are seen here in a thin layer overlaying the base sedimentary rock below, once the bed of a long-lost ocean. [No Reserve]
Condition Report: Fine condition.
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