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On the Emsian (Lower Devonian) arthropods of the Rhenish Slate Mountains: 2. The synziphosurineWillwerathia |
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| Authors: | Lyall I. Anderson Markus Poschmann Carsten Brauckmann |
| Affiliation: | 1. Department of Geology and Petroleum Geology, Meston Building, King’s College, University of Aberdeen, AB24 3UE, Scotland 2. Bussardweg 5, D-56075, Koblenz, Germany 3. Institut für Geologie und Pal?ontologie, Technische Universit?t Clausthal, Leibnizstra?e 10, D-38678, Clausthal-Zellerfeld, Germany |
| Abstract: | Willwerathia laticeps (Størmer 1936) originally described as a eurypterid is reinterpreted as a synziphosurine belonging to Family WeinberginidaeRichter &Richter 1929. Recently collected material from the locality, from which the destroyed holotype comes, suggests thatWillwerathia possessed ten opisthosomal tergites, deduced from all available arrays of disarticulates.Willwerathia is the largest synziphosurine yet discovered with a carapace approximately 90 mm across. The occurrence of synziphosurines with eurypterids mirrors previously described preservational associations. |
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