Fossil Trilobites, Elrathia Kingii, Delta, Utah #6
Fossil Trilobites, Elrathia Kingii, Delta, Utah #6
Fossil Trilobites, Elrathia Kingii, Delta, Utah #6

Fossil Trilobites, Elrathia Kingii, Delta, Utah #6

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Species: Elrathia kingii: The name Elrathia is based off the town Elrath in Alabama where these trilobites were discovered.

The main species name is kingii, not kingi. It was named by Meek in 1870. The work Kingii means King.

Lovation: Self-collected near Delta, Utah 
Age: Cambrian


This is a excellent example of the Ptychopariid trilobite Elrathia kingii from the Wheeler Formation near Delta, Utah.

Western Utah is one of the best-known Cambrian fossil localities in the world. The Wheeler Shale and Marjum Formation, strata of Middle Cambrian age, exhibit various exposures throughout the House Range and nearby mountain ranges west of the town of Delta, Utah. The Wheeler Shale is named for a major feature in the House Range, the Wheeler Amphitheater. The Wheeler Shale contains interbeds of shaley limestone, mudstone, and thin platy limestone. Much of the Wheeler Shale is not particularly fossiliferous, but certain layers contain abundant trilobites and other shelly fossils. The Wheeler Shale also is known for a diverse biota of soft-bodied fossils, including many of the same taxa found in the Burgess Shale.