Ventral Example of Breviphillipsia, A Rare Mississippian Trilobite

Breviphillipsia sampsoni

Trilobites Order Proetida, Family Proetidae)

Geological Time: Lower Mississippian - Kinderhookian Stage

Size (25.4mm=1 inch): 13 mm long by 7 mm wide on a 50 mm by 55 mm matrix

Fossil Site: Chouteau Formation, Saline County, Missouri

Code: MOT03

Price: $85.00 - Sold

Description: A fine ventral example of a member of the Order Proetida, Family Proetidae, this is Breviphillipsia sampsoni. Coming from the Kinderhookian Stage (359-348 m.y.a) deposits of Saline County, Missouri, this trilobite is a member of the last surviving order of trilobites, the Proetida. It is found in these same deposits with another rare trilobite, Comptonaspis swallowi, but has a granulose exoskeleton. The hypostome (anchor for the mouthparts) is readily seen here. See my other examples for a fine dorsal example of this rare taxon.

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