Tonnacypris glacialis (Ostracoda, Cyprididae): taxonomic position, (palaeo-) ecology, and zoogeography
The freshwater ostracod Tonnacypris glacialis (Sars, 1890) is reported from the European Pleistocene for the first time. The historical allocation of the species is discussed, and the species composition and characteristics of Tonnacypris Diebel & Pietrzeniuk (1975) and its phylozoogeography are considered. The significance of T. glacialis is reviewed, particularly from the viewpoint of the possible implications of parthenogenesis (and occasional-male production) for the Quaternary history of the genus, and for the use of the species in palaeoenvironmental reconstruction. It is suggested that the Pleistocene fossil occurrence of T. glacialis in modern temperature latitudes is a robust indicator of mean summer temperatures of 6°C.
Document Type: Research Article
Affiliations: 1: Research Institute for Environmental Science and Management, School of Geography & Earth Resources, University of Hull, Kingston-upon-Hull, GB-HU6 7RX, U.K. 2: Institut für Paläontologie, Museum für Naturkunde, Zentralinstitut der Humboldt-Universität zu Berlin, Invalidenstraße 43, D-10115 Berlin, Germany 3: Eilenburger Straße 24, D-04317 Leipzig, Germany 4: Department of Biology, University of Leeds, Mount Preston Street, Leeds, GB-LS2 9JT, U.K. 5: Koninklijk Belgisch Instituut voor Natuurwetenschappen, Vautierstraat 29, B-1000 Brussels, Belgium 6: School of History & Archaeology, University of Wales College of Cardiff, PO Box 909, Cardiff, GB-CF1 3XU, U.K.
Publication date: May 1, 1998