Zacanthoides grabaui

Name: Zacanthoides grabaui (Pack, 1906)
Trilobites Order Corynexochida, Family Zacanthoididae
Locality: Miner's Hollow, Wellsville Mountains. Box Elder County. Utah
Stratigraphy: Langston Formation, Spence Shale member, Middle Cambrian
Remarks: This may be the most magnificent specimen of the species yet found, especially since the Spence Shale is not noted for such preservation.
Photo: collected by Jake Skabelund