Here is an agnostid double of the species Hypagnostus parvifrons. One of the trilobites is very well preserved. The second specimen shows only a low level of detail. | |||
Location: | House Range, Utah, USA | ||
Size: | both about 7.5 mm long | ||
Age: | Mid. Cambrian, Marjum Fm. (ca. 515 Mill. Jahre) (about 515 Mill. Jahre) |