9.5" Large Elrathia Trilobite Cluster - Wheeler Shale, Utah

 
 
 
This is a beautiful cluster of five, large Elrathia kingii trilobite fossils from the Wheeler Shale in Utah. The thick slab of shale measures 9.5x7.5" and the largest trilobite is 1.6" long (quite large for Elrathia). There are many other trilobite fragments visible on the surface of the rock. Prepared with air abrasives.

Comes with a display stand.

Trilobites were a very diverse group of extinct marine arthropods. They first appeared in the fossil record in the Early Cambrian (521 million years ago) and went extinct during the Permian mass extinction (250 million years ago). They were one of the most successful of the early animals on our planet with over 25k described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left a excellent fossil record.
DETAILS
SPECIES
Elrathia kingii
LOCATION
U-Dig Quarry, House Range, Utah
FORMATION
Wheeler Shale
SIZE
Rock 9.5x7.5", Largest trilobite .85"
SUB CATEGORY
ITEM
#105595
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.