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Subjects
Geology, Paleontology, Fossils, Dinosaurs, Juvenile literature, Angiosperms, Fossil, Atmospheric carbon dioxide, Carbon cycle (Biogeochemistry), Cretaceous-Paleogene boundary, Cretaceous-Tertiary boundary, Description and travel, Discovery and exploration, Evolution (Biology), Fossil Angiosperms, Fossil Leaves, Fossils, juvenile literature, Global warming, Historical geology, Leaves, Fossil, Life Sciences - Evolution, Mountains, North america, juvenile literature, Palaeontology, Paleobotany, Paleontology (General)Places
Bighorn Basin (Mont. and Wyo.), Colorado, Front Range (Colo. and Wyo.), Hell Creek Formation, Montana, North Dakota, Northwestern States, Pacific Coast (North America), South Dakota, United States, West (U.S.), WyomingTime
CretaceousID Numbers
- OLID: OL459346A
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