Rare Anataphrus vigilansTrilobites from Iowa

Anataphrus (Vogdesia) vigilans

Trilobites Order Asaphida, Family Asaphidae, Subfamily Isotelinae

Geological Time: Upper rdovician

Size (25.4mm=1 inch): 47 long by 20 mm wide free of matrix

Fossil Site: Maquoketa Formation, Fayette County, Iowa

Code: IT02

Price: $50.00 - sold

Anataphrus vigilans is an Asaphid trilobite (Order: Asaphida; Family: Asaphidae Subfamily: Isotelinae) coming from the Ordovician Maquoketa Formation dolomitic shale strata of Fayette County, Iowa. This is a fine enrolled example of a trilobite rarely offered for sale that used to be named Vogdesia. Enrollment was a defensive response to predators, and is the way these trilobites are found. It has affinities with both Isotelus and Homotelus (see my other offerings for examples).

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