Tricrepicephalus Trilobites

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Tricrepicephalus texanus

Weeks Formation

Millard County, UT

Cambrian

 

Here is a beautifully preserved specimen of a rare Tricrepicephalus texanus. This specimen was one of the very first trilobites I ever found in the Weeks Formation of Utah. It was found about 9 years ago and measures almost 1 1/4" long. Its black shell and almost perfect articulation makes this a true collector's piece. This is a superb specimen!!

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Tricrepicephalus texanus

Weeks Formation

Millard County, UT

Cambrian

 

Here is an exquisitely preserved specimen of a rare Tricrepicephalus texanus. This specimen measures 1 1/8" long and is perfectly centered on a large matrix block. They don't get any better than this!!

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Tricrepicephalus sp.

Weeks Formation

Millard County, UT
Cambrian

 

Here is an extremely rare type of Tricrepicephalus from an unusual locality in the Weeks Formation. It was identified by Dr. Richard Robison 6 years ago as a new species of Tricrepicephalus based on the genal spine length and the short spines emanating from the pygidium. To his knowledge and mine, this is the only complete specimen known. This great specimen measures 1 1/2" long.