"Pompey's Pillar" at the Pompeys Pillar National Monument is a small isolated section of the Hell Creek Formation.
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A prehistoric species of water lettuce, previously assigned to the genus Pistia.
Dawson's Creek | Battle Creek, Michigan | Hell | Walnut Creek, California | Nickel Creek | Tennant Creek | Rock Creek | Cooper Creek | Mill Creek Entertainment | Mill Creek | Creek | Cave Creek, Arizona | formation | Spring Creek | Hell's Kitchen | Fish Creek, Wisconsin | Dawson Creek | Creek War | Battle of Cedar Creek | Oatka Creek | Muddy Creek | Hamilton East—Stoney Creek | From Hell | DJ Hell | Cross Creek | Antietam Creek | Pazundaung Creek | Hell Night | Fish Creek | Eagle Creek, Oregon |
Small hesperornithine bones are known from the freshwater deposits of the Late Cretaceous of the Judith River Group as well as the Hell Creek and Lance Formations as well as Eurasian sites.