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Lepidocaris
''Lepidocaris rhyniensis'' is an extinct species of crustacean. It is the only species known from the order Lipostraca, and is the only abundant animal in the Rhynie chert deposits. It resembles modern Anostraca, to which it is probably closely related, although its relationships to other orders remain unclear. The body is long, with 23 body segments and 19 pairs of appendages, but no carapace. It occurred chiefly among charophytes, probably in alkaline temporary pools.
==Biostratigraphy and taxonomy==
All the known specimens of ''Lepidocaris rhyniensis'' have been excavated from the Rhynie chert deposits in Aberdeenshire, Scotland, which is a famous ''ドイツ語:Lagerstätte'', or site of exceptional preservation. ''Lepidocaris'' is the only abundant animal in the deposits,〔(【引用サイトリンク】title=Introduction to Branchiopoda )〕 and is likely to be responsible for many of the frequent coprolites found in the rocks.
''Lepidocaris'' was first described by D. J. Scourfield in a 1926 paper in the ''Philosophical Transactions of the Royal Society B''. Scourfield could not accommodate his new genus in the same order as its closest relatives – the Anostraca – so he erected a new family and order for ''Lepidocaris'' alone: Lepidocarididae and Lipostraca, respectively. Until 2003, when ''Castracollis'' was described, ''Lepidocaris'' was the only crustacean known from the Rhynie chert.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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