New specimens of Cyclocystoides scammaphoris (Echinodermata) from the Upper Ordovician rocks of the American midcontinent with implications for cyclocystoid functional morphology Open Access

New age constraints on the duration and origin of the Late Ordovician Guttenberg δ 13 C carb excursion from high-precision U-Pb geochronology of K-bentonites Available to Purchase

Evactinoporidae, a new family of Cystoporata (Bryozoa) from the Mississippian of North America: growth and functional morphology Available to Purchase

C. W. BEEHLER’S COLLECTION OF VERTEBRATE FOSSILS: A LOST LEGACY Available to Purchase

The Upper Ordovician trilobite Raymondites Sinclair, 1944 in North America Available to Purchase

THE DISCOVERY OF FOSSIL VERTEBRATES ON MISSOURI’S WESTERN FRONTIER Available to Purchase

Sequence Stratigraphy and Depositional Facies of Lower Ordovician Cyclic Carbonate Rocks, Southern Missouri, U.S.A. Available to Purchase

A new species of Porocrinus from the middle Ordovician Plattin Limestone of Missouri Free