Trilobite Perenopsis interstrictus from Utah

Description

Cambrian Trilobite Perenopsis interstrictus assemlage for sale. 3 complete one very small one and also imprints of the Trilobite are present.

Perenopsis interstrictus occurs in the mid Cambrian Wheeler Shale of Utah. The Wheeler Shale is named after the town of Wheeler. They are about 507 million years of age.

The Trilobite Perenopsis interstrictus is a rather small Trilobite. They are about  8 mm, or around 3/8 of an  inch long. The Trilobite has only 2 segments between Head and tail. This is characteristic for the order of the Agnostida.

Perenopsis interstrictus ? or Perenopsis interstricta ? I never found that one out, seems to be now Itagnostus interstrictus. Who knows what they call it tomorrow.

Short information on the Trilobite species of the Wheeler Shale can be found here: https://www.trilobites.info/Utah.htm

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