|
''Mesonacis'' is an extinct genus of trilobite that lived during the Botomian, found in North-America (excluding Greenland), and the United Kingdom (North-Western Scotland). Some of the species now regarded part of ''Mesonacis'', have previously been assigned to ''Angustolenellus'' or ''Olenellus (Angustolenellus)''.〔 ''Angustolenellus'' is now regarded a junior synonym of ''Mesonacis''.〔 == Etymology == ''M. vermontanus'' is named after the State of Vermont, where it was collected. ''M. bonnensis'' is called after the Bonne Bay, Newfoundland, where the species is found. ''M. eagerensis'' refers to the Eager Formation, British Columbia, in which it occurs. ''M. hamaculus'' is derived from the Latin hamus, meaning hooked, and oculus, meaning eye.〔 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「Mesonacis」の詳細全文を読む スポンサード リンク
|