This is an agnostid trilobite of the species Itagnostus interstricta from the Wheeler Shale of Utah. There is a second, juvenile specimen of the same species on the piece. | |||
Location: | House Range, Utah, USA | ||
Size trilobite: | about 9 mm long | ||
Age: | Middle Cambriun, Wheeler Fm. (about 518 Mill. Y.) |