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Acernaspis
}} ''Acernaspis'' is an extinct genus of Trilobite that is known from the Silurian. It contains two species, ''A. elliptifrons'', and ''A. salmoensis''. It is sometimes found preserved in burrows of various forms, sometimes in association with multiple moults, suggesting that it used the tunnels as refugia whilst in its vulnerable moulting stage. ==External links==
* (''Acernaspis'' ) at the Paleobiology Database
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「Acernaspis」の詳細全文を読む
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