1.4" Asaphiscus Wheeleri Trilobite (Molt)

Here is a 1.4" long Asaphiscus wheeleri trilobite molt from the Wheeler Shale of Utah. Like modern day lobsters, trilobites molted as they grew, crawling out from underneath the discarded shell. The shell on the sides of the trilobites head (cheeks or more technically librigena) separated from the rest of the shell allowing the trilobite to crawl out from underneath.

Both of the separated cheeks can be seen preserved on the plate, one to the left of the trilobite, and one on top of it.
DETAILS
SPECIES
Asaphiscus wheeleri
LOCATION
House Range, Utah
FORMATION
Wheeler Shale
SIZE
1.4" long
SUB CATEGORY
ITEM
#26412
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