Exceptional and Exceptionally Rare Tricrepicephalus Trilobite

Tricrepicephalus coria (or T. texanus)

Trilobites Order Ptychopariida, Family Tricrepicephalidae

Geological Time: Early Middle Cambrian

Size (25.4 mm = 1 inch): Trilobite is 44 mm long

Fossil Site: Weeks Formation, House Range, Millard County, Utah

Tricrepicephalus coriaDescription: Exceptionally rare example of the trilobite Tricrepicephalus coria from the House Range of Utah. Some assign this one as T. texanus, but there is still some debate on that score. It is sought after by collectors in part due to the resemblance it bears to the genus Ceraurus. The dark exoskeleton contrasts well with the rose-colored matrix, a color seen when the matrix has been weathered. This one has the genals tightly attached and quite complete. Unlike some, this one is as found with NO restoration to the trilobite. It is seen in association with several brachiopods, making for a superb display piece.

click trilobite pictures to enlarge

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