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1. Hell Creek Formation: The Hell Creek Formation is an intensively studied division of mostly Upper Cretaceous and some lower Paleocene rocks in North America, named for exposures studied along Hell Creek, near Jordan, Montana. The formation stretches over portions of Montana, North Dakota ... (Earth) [100%] 2024-01-19 [Hell Creek Formation]
2. Paleobiota of the Hell Creek Formation: This is an overview of the fossil flora and fauna of the Maastrichtian-Danian Hell Creek Formation. Insects like Diptera, Zygopteran, and possibly hemiphlebiid damselflies have been unearthed in Hell Creek in amber. [70%] 2021-12-23 [Maastrichtian life] [Cretaceous–Paleogene boundary]...
3. Paleobiota of the Hell Creek Formation: This is an overview of the fossil flora and fauna of the Maastrichtian-Danian Hell Creek Formation. Insects like Diptera, Zygopteran, and possibly hemiphlebiid damselflies have been unearthed in Hell Creek in amber. (Earth) [70%] 2022-12-18 [Maastrichtian life] [Danian life]...