Cincinnati Museum Center

Redescription of Paraconularia planicostata (Cnidaria, Medusozoa) from Mississippian (late Visean) carbonates in the Maritimes Basin, Atlantic Canada

Reflecting the long-term decline in the generic diversity of order Conulariida Miller and Gurley, 1896 following its peak during Mid–Late Ordovician times (Leme et al., 2008, fig. 1; Bernad et al., 2026, figs. 1, 2), the global fossil record of conulariid cnidarians in the Missis...

Late Ordovician ostracods from the “butter shale” Lagerstätten of the Cincinnati Arch region, Ohio, USA

Abstract The “butter shale” Lagerstätten of the Cincinnati Arch region is renowned for its well-preserved fossil records, documenting the dynamics of the Late Ordovician “Richmondian Invasion,” during which faunal migration from multiple source basins into the region led to a dra...