Articulated Ogygopsis typicalis Trilobite

Ogygopsis typicalis

Trilobites Order Corynexochida, Family Dorypygidae (described by Reser 1939)

Geologic Time: Middle Cambrian

Size (25.4mm=1 inch): trilobite 45 mm by 31 mm on a 60 mm x 80 mm matrix

Fossil Site: Spence Shale, Box Elder County, Utah

Fossil Code: UB259

Price: $165.00 - sold

Ogygopsis typicalis TrilobiteDescription: Ogygopsis trpicalis is a trilobite that is usually found without free cheeks attached, making this literally a one-in-a-hundred example. The genus is found as well in British Columbia, where one stratigraphic unit near the Burgess Shale is termed the Ogygopsis Shale due to the number of specimens found there. The genus is unusual for a Cambrian trilobite in that the relationship between the cephalon and pygidium is macropygous, meaning that the pygidium is the larger of the two.

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