| Abstract: | The Middle Jurassic Wanakah Formation averages about 30 m in thickness in Colorado. Fossils are sparse and include fish, ostracodes, and trace fossils. A thin (0.03-0.45 m) fossil bed near the middle of the formation extends for some 48 km along the northeast flank of the Uncompahgre Plateau near Delta. The fossil bed at one locality contains one pelecypod identified possibly as Modiolus cf. M. subimbricatus (Meek), as well as other specimens too poorly preserved for identification. Previously, Mytilus was found in the same fossil bed at another locality by C.N. Holmes. The Wanakah Formation is primarily of terrestrial origin, but the fossil bed represents a shallow-marine incursion. |
| Genre: | USGS Numbered Series |
| ProdID: | 78002 |
| Citation Author: | O'Sullivan, R. B.; Carey, M. A.; Good, S. C. |
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| Citation Edition: | Version 1.0 |
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| Citation Language: | ENGLISH |
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| Citation LatN: | 0390000 |
| Citation LatS: | 0382700 |
| Citation LonE: | -1080000 |
| Citation LonW: | -1084500 |
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| Citation No Pagination: | |
| Citation Number Of Pages: | 9 |
| Citation Online Only Flag: | Y |
| Citation Phsyical Description: | iii, 6 p. |
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| Citation Series: | Scientific Investigations Report |
| Citation Series Code: | SIR |
| Citation Series Number: | 2006-5105 |
| Citation Search Results Text: | Fossils from the Middle Jurassic Wanakah formation near Delta in western Colorado; 2006; SIR; 2006-5105; O‘Sullivan, R. B.; Carey, M. A.; Good, S. C. |
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| Citation Year: | 2006 |
| Type: | citation/reference |
| Text: | Fossils from the Middle Jurassic Wanakah formation near Delta in western Colorado; 2006; SIR; 2006-5105; O‘Sullivan, R. B.; Carey, M. A.; Good, S. C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/sir/2006/5105/ |
| Date Other: | Thu, 10 Aug 2006 00:00 -0500 |
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