Mario Cournoyer

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...