Word Formation
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TypeFormation
Sub-unitsAppel Ranch, China Tank & Willis Ranch members
OverliesRoad Canyon Formation
PrimaryLimestone
| Word Formation | |
|---|---|
| Stratigraphic range: Roadian-Wordian ~ | |
 Fossil from the Word Formation | |
| Type | Formation |
| Sub-units | Appel Ranch, China Tank & Willis Ranch members |
| Overlies | Road Canyon Formation |
| Lithology | |
| Primary | Limestone |
| Location | |
| Coordinates | 30°24′N 103°12′W / 30.4°N 103.2°W |
| Approximate paleocoordinates | 1°36′N 33°00′W / 1.6°N 33.0°W |
| Region | Texas |
| Country | United States |
| Extent | Glass Mountains |
| Type section | |
| Named for | Old Word Ranch |
  Word Formation (the United States)  Word Formation (Texas) | |
The Word Formation is a geologic formation in Texas.[1] It preserves fossils dating back to the Permian period. It is probably named for the Old Word Ranch in the Glass Mountains of Brewster County.[2]
Subdivisions
Fossil content
The limestone formation contains marine gastropods, brachiopods and ammonites.[1]