"Olenellus"@en . . . . "Arthropoda"@en . . "Animalia"@en . . . . . . . "Olenellus is a genus of trilobites that lived in the early cambrian. It is commonly found in areas of Europe and North America(more specimens have been found in the upper midwest and in Texas)."@en . . "Olenellus"@en . . . . . "Olenellus is a genus of trilobites that lived in the early cambrian. It is commonly found in areas of Europe and North America(more specimens have been found in the upper midwest and in Texas)."@en . "Olenellus"@en .