Crossing the lower-middle Cambrian boundary, the Pioche Formation in
eastern Nevada (USA) contains common remains of trilobites and
soft-bodied ecdysozoan taxa. These fossils provide important
information about the nature and variety of Cambrian ecosystem.
Olenelloid trilobites (center of diorama) were extremely abundant in
this environment and other arthropods like Canadaspis, worm Opabinia, sponges, and algae (Margareta genus) are also found.
Media: Adobe Photoshop.
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