KurzfassungDie sp/italtpleistoz~ine Ostracoden-und S~iugetierfauna von Dorn-Dª 3 wird vorgestellt. Sie ist s/iugetierstratigraphisch in das Jungbiharium zu datieren. Aufgrund von pal/iomagnetischen Untersuchungen geh6rt sie andererseits noch in das Matuyama-Chron. Demnach betr~igt ihr absolutes Alter etwa 800.000 Jahre. Geologie und Sedimentologie, Pal/io6kologie und Taphonomie der Fossillagerst~itte werden dargestellt und diskutiert. Die Fundstelle wird angesehen als Bonebed, das am Ufer eines Sª entstanden ist. Der See bildete sich m6glicherweise, als der Alpenrhein Anschluf3 an das rheinische Flul3system gewann.
Abstract[The late Early Pleistocene fossil lagerstaette Dorn-Dª 3 and its significance for reconstructing the development of the Rhenish fluvial system]. --The ostracod and mammal faunas of the Late Early Pleistocene of Dorn-Dª 3 are described. In terms of mammalian biostratigraphy the locality dates into the Late Biharian, whereas palaeomagnetic investigations indicate still the Matuyama Chron. Therefore, its absolute age is estimated at about 800,000 years. The geology and sedimentology as well as the palaeoecology and taphonomy of the fossil lagerstaette are described and discussed. The site is considered asa bone bed developed on the shore of a freshwater lake. The lake developed possibly when the Alpine Rhine got access to the Rhenish river system. K e y w o r d s:
UELLINEK, T., SWANSON, K. & MAZZINt, I. (2006): Is the cosmopolitan model still valid for deep-sea podocopid ostracods? (With the discussion of two new species of the genus Pseudobosquetina GtJEV, NET & MOULI~DE 1994 and Cytheropteron testudo (Ostracoda) as case studies). -Senckenbergiana maritima, 36 (1): 29-50, 8 Figs.; Frankfurt a. M.]Despite the increasing recognition of a global shortage of taxonomists (the 'taxonomic impediment'; see the Governments Convention on Biological Diversity, Darwin Declaration 1998) and the impact this will have on our ability to scientifically assess loss ofbiodiversity in the context of contemporary global change, there has been little indication (accepting specific funding initiatives such as 'SINTHESu in Europe and 'PEET' in America) as to how young scientists might be encouraged to undertake training in that field, of what educational approach would be appropriate to train taxonomists. There is also clear evidence from the literature that many recognised protocols in terms of the methodology of taxonomy have been eschewed by numerous practitioners, such that problems associated with synonymy and homeomorphy must significantly impact on quantitative assessments of biodiversity in many groups of plants and animals. We use deep-sea podocopid ostracods (Crustacea) to illustrate how less than rigorous taxonomic practice not only leads to confusion with respect to definitions of individual taxa, but also affects on the total number of species and their inferred ecology, distribution and geological record. Descriptions
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