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ID number: BIRUG: BU808 Institution: The Lapworth Museum of Geology Definition: Diacanthaspis cf. decacantha (Angelin, 1854) Object type: Trilobita Place collected: WALES: Merioneth, Bala, field 200 ft S of llwyn Iolyn Chronostratigraphy: ORDOVICIAN: Ashgill Biostratigraphy: P. parabola zone Lithology: Upper Bala series, Rhiwlas limestone Type, figured or cited: Figured |
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