Examples of such basinal environments include backarc, forearc, passive margin, epicontinental, and extensional basins. The waters which it inhabited were fairly shallow epicontinental or shelf seas. Interglacials are identified on land or in shallow epicontinental seas by their paleontology. Species limited to a single epicontinental sea on a given landmass were severely affected. The deposits of the Bulldog Shale represent a coastal region of a shallow epicontinental sea. The Late Cretaceous was marked by high temperatures, with large epicontinental seaways. Connection would have occurred through narrow epicontinental seaways that formed channels in a dissected topography. Shallow shelf seas and epicontinental seas existed in which evaporites and limestones were deposited. Subsequently, the Pocono & equivalent clastic wedges essentially filled the epicontinental sea.