4.8" Bolaspidella & Elrathia Trilobite Cluster - Utah

 
This is a fantastic, 4.8" wide cluster of around 50 small Bolaspidella housensis trilobites. It was collected from the famous Wheeler Shale of Utah and prepared using air abrasives to reveal all of the tiny trilobites. Most of the Bolaspidella are about .2" long.
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
Bolaspidella housensis & Elrathia kingii
LOCATION
U-Dig Quarry, House Range, Utah
FORMATION
Wheeler Shale
SIZE
Rock 4.8x2.8", Bolaspidella about .2"
SUB CATEGORY
ITEM
#105517
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