일반명 : 삼엽충(Trilobite)

학명 : Asaphiscus wheeleri (가로+세로+두께) (56mm+55+12mm)
지질시대 : Middle Cambrian
지층 : Wheeler Formation
원산지 : House Range,utah, USA
Coming from the Cambrian Wheeler Formation deposits of Millard County Utah this is a detailed example of the trilobite Asaphiscus wheeleri. These trilobites are often found with disarticulated or missing free cheeks. This fine example is well-articulated, with a dark black exoskeleton which contrasts well with the grey shale matrix which derives its color from its high organic content.