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Megacheira
Megacheira ("Great Hands") is an extinct class of predatory arthropods that possessed a pair of short enlarged appendages (the source of the class' name). They strongly resemble early chelicerates. Most of them were found in marine environments throughout the world from the lower to middle Cambrian. The group might also contain one species (''Enalikter aphson'') described from the Silurian Herefordshire Lagerstätte of the United Kingdom, and one species (''Bundenbachiellus giganteus'') known from the Early Devonian of Germany; however, the interpretation of these taxa as megacheirans was challenged by Struck ''et al.'' (2015). Megacheirans were important components of several faunas, including the Burgess, Wheeler and Maotianshan Shales Lagerstatten. Genera referred to the class include ''Leanchoilia'', ''Alalcomenaeus'', ''Oestokerkus'', ''Yohoia'', ''Fortiforceps'' and ''Jianfengia''. ==External links==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Megacheira」の詳細全文を読む
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