The oldest armoured harvestman (Arachnida: Opiliones: Laniatores), from Upper Cretaceous Myanmar amber |
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| Institution: | 1. College of Life Sciences, Capital Normal University, Beijing 100048, People''s Republic of China;2. Department of Geology and Paleontological Institute, University of Kansas, 1475 Jayhawk Boulevard, Lawrence, KS 66045, USA;3. The Natural History Museum, Cromwell Road, London SW7 5BD, UK;4. Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstraße 43, Berlin 10115, Germany;5. Museum of Comparative Zoology & Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA;6. PO Box 4680, Chongqing 400015, People''s Republic of China;1. Institute for Integrative Nanosciences, Leibniz Institute for Solid State and Materials Research Dresden, Germany;2. Liquid Crystals & Photonics Group, ELIS Department, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium;1. UCD School of Earth Sciences, University College Dublin, Belfield, Dublin 4, Ireland;2. Dpto. de Paleontología, Universidad Complutense de Madrid, c/José Antonio Novais, 12, 28040 Madrid, Spain;3. Instituto de Geociencias (CSIC, UCM), c/José Antonio Novais 12, 28040 Madrid, Spain;4. Division du Patrimoine Géologique, Direction du Développement Minier, Ministère de l’Énergie, des Mines, de l’Eau et de l’Environnement, rue Abou Marouane Essadi BP, Rabat Instituts, 6208 Haut Agdal, Rabat, Morocco;1. School of Electronic Information, Wuhan University, Wuhan, 430072, China;2. School of Electronic and Information Engineering, Hubei University of Science and Technology, Xianning, 437100, China;3. School of computer and Information Engineering, Hubei Normal University, Huangshi, 435002, China;4. Hubei Institute of Intelligent Mechanical and Electrical Industry Technology, Xianning, 437100, China |
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| Abstract: | The oldest laniatorean harvestman, Petrobunoides sharmai gen. et sp. nov. (Opiliones: Laniatores) is described, from the Upper Cretaceous (lowermost Cenomanian) amber of Myanmar. This is the first fossil Laniatores recovered from Southeast Asia, which is placed in the extant family Epedanidae. It is also the first fossil known within the superfamily Epedanoidea; a relatively derived clade of Laniatores restricted to Southeast Asia today. At ca. 99 Ma, this new amber inclusion is substantially older than the previous oldest record of a member of Laniatores from Baltic amber (ca. 44–49 Ma); however, given the Palaeozoic age of Laniatores implied by molecular data, the new record from Burmese amber is probably still too young for constraining or calibrating the date of cladogenesis for total group Laniatores. Nevertheless, it provides a much better constraint for Epedanoidea, adding the first useful laniatorean fossil to provide an internal calibration point for a clade of Grassatores. |
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| Keywords: | Burmese amber Cenomanian Epedanoidea Grassatores |
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