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Two new genera of Laophontidae (Copepoda: Harpacticoida) from the high Antarctic Weddell Sea
Abstract:
Two new genera of the harpacticoid family Laophontidae from the high Antarctic Weddell Sea are described. At present, both taxa cannot be assigned to any of the known genera or lineages of the family. The Antarctic shows the greatest degree of endemism worldwide in several already investigated taxa and, considering the available records, the Laophontidae appear to be no exception to this rule. The available data on the Laophontidae of the Weddell Sea seem to support a hypothesis of an ‘old’ antarctic fauna rather than a recolonization by ‘phylogenetic younger’ taxa after the major climatic changes, which took place in the Antarctic continent and the surrounding waters from the Miocene onwards.
Keywords:Antarctic  Weddell Sea  Copepoda Harpacticoida  Laophontidae  systematics  zoogeography  phylogeny
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