Drill holes and shell repair in brachiopods from a Late Cretaceous (Maastrichtian) oyster reef,North Canterbury,New Zealand |
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| Institution: | 1. Centre de Recherche sur la Paléobiodiversité et les Paléoenvironnements, CR2P UMR7207 – CNRS, MNHN, SU, case 104, Sorbonne Université, 75252 Paris Cedex 05, France;2. Departamento de Ciencias de la Tierra (Área Paleontología), Universidad de Zaragoza. C/ Pedro Cerbuna 12, 50009 Zaragoza, Spain;1. Lebanese University, Faculty of Sciences II, Department of Natural Sciences, P.O. Box 26110217, Fanar, Fanar – Matn, Lebanon;2. Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, People''s Republic of China;3. Muséum National d’Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB, UMR 7205 CNRS UPMC EPHE, CP50, 45 rue Buffon, F-75005 Paris, France;1. The Natural History Museum, Department of Palaeontology, Cromwell Road, London SW7 5BD, United Kingdom;2. 8 Shaw''s Cottages, Perry Rise, London SE23 2QN, United Kingdom;3. Non-vertebrate Paleontology, Texas Natural Science Center, The University of Texas at Austin, 10100 Burnet Road, Austin, TX 78758, USA;1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China;2. University of the Chinese Academy of Sciences, Beijing 100049, China;3. Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences, Nanjing 210008, China;4. Steinmann Institute, University of Bonn, Bonn 53115, Germany;5. Department of Earth Sciences, The Natural History Museum, London SW7 5BD, UK;1. Lerchenauerstr. 167, D-80935 München, Germany;2. Earth Observatory of Singapore, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore |
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| Abstract: | Several hundred brachiopods were separated from a bulk sample taken from a single locality of the Late Cretaceous Ostrea Bed at the top of the Broken River Formation in the Weka Pass area of North Canterbury, New Zealand. The specimens were divided among five different species and examined for drill holes and shell repair following failed predatory attacks. The results show that one or more unknown predators and/or parasites apparently selectively preyed on the rhynchonellide Wekarhynchia cataracta, with approximately 16.2% of complete shells showing evidence of attack. The larger, coarsely-ribbed terebratulide Ostreathyris allani was seemingly immune to drilling, while sample sizes for the three other brachiopod species were too small to allow even rudimentary estimates of predation/parasitism rates. |
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| Keywords: | Late Cretaceous Articulated brachiopods Predation Parasitism Drill holes Repaired shell damage |
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