| 词条 | Johnson Formation |
| 释义 |
| name = Johnson Formation | image = | caption = | type = Formation | age = Permian | prilithology = | otherlithology = | namedfor = | namedby = | region = Oklahoma | country = United States | coordinates = | unitof = | subunits = | underlies = | overlies = | thickness = | extent = | area = | map = | map_caption = }} The Johnson Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period. See also{{Portal|Earth sciences|Oklahoma|Paleontology|Permian|Paleozoic}}
References
1 : Permian geology of Oklahoma |
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