|
''Olenellus'' is an extinct genus of trilobites, fossil marine arthropods, with species of average size (about long). It lived during the Botomian and Toyonian stages (''Olenellus''-zone), , in what is currently North-America, part of the paleocontinent Laurentia. == Etymology == ''Olenellus'' means small ''Olenus'', after a genus belonging to the Ptychopariida, to which the type species ''O. thompsoni'' was originally assigned. The name Olenus refers to a mythological figure who was turned to stone by the gods. The names of the species have the following derivations. * ''agellus'' comes from the Latin word for field or hamlet. * ''chiefensis'' refers to the Chief Range, which includes the Ruin Wash section, that holds the last of the Olenellina.〔 * ''fowleri'' was named in honor of Ed Fowler, whose quarrying skills exposed the type locality of this species.〔 * ''getzi'' is called after (Noah L. Getz ), on whose Lancaster estate several ''Olenellus'' species were first collected. * ''nevadensis'' refers to the state of Nevada, where this species is found. * ''parvofrontatus'' means ‘small front’ from the Latin words parvus and frontatus, indicating the short distance between the anterior border and the glabella in this species. * ''roddyi'' was named in honor of Dr. H. Justin Roddy (1856-1943), an internationally known naturalist, curator and professor of geology. * ''romensis'' refers to the Rome Formation. * ''terminatus'' is from the Latin terminus, meaning final, indicating the demise of the ''Olenellus'' lineage.〔 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「Olenellus」の詳細全文を読む スポンサード リンク
|