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Elrathia
''Elrathia'' is a genus of ptychopariid trilobite species that lived during the Middle Cambrian of Utah, and possibly British Columbia. ''E. kingii'' is one of the most common trilobite fossils in the USA locally found in extremely high concentrations within the Wheeler Formation in the U.S. state of Utah. ''E. kingii'' has been considered the most recognizable trilobite. Commercial quarries extract ''E. kingii'' in prolific numbers,〔 with just one commercial collector estimating 1.5 million specimens extracted in a 20 year career. == Etymology == Even though the generic name ''Elrathia'' was first published in the combination ''E. kingii'', a species from the House Range Utah, the name, itself, is derived from Elrath, Cherokee County, Alabama.
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「Elrathia」の詳細全文を読む
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