Trilobite fossil (Encrinusis egani) from the Silurian period in Niagaran rock (CHAS:Paleo:3341A.5). This is a type specimen, a specimen used to describe and highlight the majority of features held by a particular species.
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Details
Title: Fossil Trilobite
Creator: William C. Egan
Location: United States, Illinois, Will County, Joliet
Location Created: Illinois
Subject Keywords: trilobite; fossil; type specimen; natural history; paleontology
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