| 词条 | Reunion Creek Beds |
| 释义 |
| name = Sappa Formation | image = | caption = | type = Formation | age = | prilithology = | otherlithology = | namedfor = | namedby = | region = Nebraska | country = United States | coordinates = | unitof = | subunits = | underlies = | overlies = | thickness = | extent = | area = | map = | map_caption = }} The Sappa Formation is a geologic formation in Nebraska. It preserves fossils. See also{{Portal|Earth sciences|Nebraska|Paleontology|}}
References
2 : Paleogene geology of Nebraska|Cretaceous System of North America |
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