Title: Stratigraphic and geographic Bryozoan abundance gradients in the calcareous shales of the Wreford Megacyclothem (Lower Permian, Kansas)
Subjects: Bryozoa, Fossil, Cyclostratigraphy, Fossil Bryozoa, Niobrara Formatiion, Paleontology, Paleontology, Stratigraphic, Plesiosauria, Shale, Stratigraphic Paleontology
Places: Kansas, North America
Time periods: Cretaceous, Permian