Pudoproetus auriculatus
Well preserved specimens of the proetide trilobite Pudoproetus
auriculatus (also known as Pudoproetus missouriensis) are
rare. The specimen shown below is an internal mold of a complete
exoskeleton in fossiliferous quartzose sandstone. These fossils have an
orangish-brown coating of limonite (FeO·OH·nH2O - hydrous iron
hydroxy-oxide). The trilobite is closely associated with isolated crinoid
stem columnals.
Stratigraphy: Byer Sandstone Member, lower Logan Formation, lower Osagean Stage,
upper Lower Mississippian.
Locality:
roadcut on western side of Rt. 16, ~1.45 miles south of Granville, central
Licking County, central Ohio, USA.
Pudoproetus auriculatus (above & below) from the Byer Sandstone (Lower
Mississippian) of Granville, Ohio, USA. Centimeter scale. Specimen
collected 1961 by William D. Nichols. Housed at the Orton Geology Museum
(Ohio State University, Columbus, Ohio, USA).
