Tensleep Sandstone
| Tensleep Formation Stratigraphic range: Late Pennsylvanian to very Early Permian PreЄ Є O S D C P T J K Pg N | |
|---|---|
| Type | Geological formation |
| Underlies | Phosphoria Formation or Chugwater Formation |
| Overlies | Sacajewea Formation or Amsden Formation |
| Thickness | up to 535 feet (160 m) |
| Lithology | |
| Primary | Sandstone |
| Other | Limestone |
| Location | |
| Region |  Wyoming |
| Country |  USA |
| Type section | |
| Named for | Ten Sleep, Wyoming |
| Named by | N.H. Darton, 1904[1] |
The Tensleep Sandstone is a geological formation of Pennsylvanian to very early Permian age in Wyoming.[2]
Trace fossils
Hylonomus
In 1932 Edward Branson and Maurice Mehl reported the discovery of a fossil trackway in the formation.[3] A new ichnospecies, Steganoposaurus belli, was erected for these footprints.[3] The tracks were probably made by a web-footed animal slightly less than three feet long.[3] This creature was originally presumed to be an amphibian, but the toe prints it left behind were pointed like a reptile's rather than round like an amphibians. The actual trackmaker may have been similar to the genus Hylonomus.[4] The ichnogenus Tridentichnus are similar footprints preserved in the Supai Formation of Arizona.[5]
Footnotes
^ Darton, N.H., 1904, Comparison of the stratigraphy of the Black Hills, Bighorn Mountains, and Rocky Mountain Front Range: Geological Society of America Bulletin, v. 15, p. 379-448.
^ U.S. Geological Survey. "Geologic Unit: Tensleep". Retrieved 2014-12-23..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
^ abc "Western Traces in the 'Age of Amphibians'," Lockley and Hunt (1995); page 34.
^ "Western Traces in the 'Age of Amphibians'," Lockley and Hunt (1995); page 35.
^ "Western Traces in the 'Age of Amphibians'," Lockley and Hunt (1995); pages 34-35.
References
- Lockley, Martin and Hunt, Adrian. Dinosaur Tracks of Western North America. Columbia University Press. 1999.
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