A giant barnacle (Crustacea,Cirripedia, Thoracica) from the Upper Cretaceous (Maastrichtian) of Canada revisited |
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| Institution: | School of the Environment, Geography and Geological Sciences, Burnaby Building, Burnaby Road, University of Portsmouth, Portsmouth PO13QL, UK;Department of Earth Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UK |
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| Abstract: | The cirripede Calantica? saskatchewanensis Russell, 1967, from the Maastrichtian Bearpaw Formation of Saskatchewan (Canada), is redescribed on the basis of new material and transferred to the genus Pachyscalpellum Buckeridge, 1991. This considerably extends the known range of the genus from the eastern Tethys (Australasia, Tunisia) to the northern part of the Western Interior Seaway of North America. Species of the genus achieved an exceptionally large size for stalked barnacles, with a projected possible height (capitulum and peduncle) of 150–200 mm. |
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