This Specimen has been sold.
4.5" Bolaspidella & Elrathia Trilobite Cluster - Utah
This is a fantastic cluster of close to 100 small Bolaspidella housensis trilobites and a few small Elrathia kingii. 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. It's not uncommon to find clusters of them, but this is a particularly dense and nice cluster.
Comes with a display stand.
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: over 25,000 species have been described, filling nearly every evolutionary niche. Due in large part to their hard exoskeletons (shells), they left an excellent fossil record.
SPECIES
Bolaspidella housensis & Elrathia kingii
LOCATION
U-Dig Quarry, House Range, Utah
FORMATION
Wheeler Shale
SIZE
Rock 4.5x4", Bolaspidella about .2"
CATEGORY
SUB CATEGORY
ITEM
#105515
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