Rare Breviphillipsia Mississippian Trilobite from Missouri

Breviphillipsia sampsoni

Trilobite Order Proetida, Family Proetidae

Geological Time: Mississippian

Size (25.4 mm = 1 inch): Trilobite is 18 mm on a 45 x 48 mm plate

Fossil Site: Chouteau Formation, Saline County, Missouri

Code: PFT371

Price: $115.00


Breviphillipsia sampsoniDescription: By the Carboniferous, the lone surviving trilobite Order was Proetida, and in a general sense all Carboniferous trilobites are relatively rare. Among these "last of the trilobites" is Breviphillipsia sampsoni (Superfamily: Proetoidea; Family: Phillipsiidae) from the Mississippian Chouteau Formation in Saline County, Missouri. A defining characteristic of sampsoni is the granulous exoskeleton extending from cephalon to pygidium, as is evident in the close-up pictures.

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