Paleontology and deposition of the Phosphoria Formation.
Contributions to Geology - University of Wyoming, Laramie
By: B. R. Wardlaw and J.W. Collinson
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Abstract
The Phosphoria Formation and related rocks were deposited in an interior sag basin developed in the Cordilleran miogeocline of western North America. Deposition can be characterized as a fringing bank complex on a carbonate ramp. Conodont-brachiopod biostratigraphy provides a sufficient relative time framework for correlation of the many units. These age correlations and the distribution of fossils, plus the biofacies of conodonts and brachiopods in particular, indicate that phosphate deposition was a cool-water, deeper ramp facies that transgressed over the carbonate bank twice, representing the Meade Peak and Retort Phosphatic Shale Members of the Phosphoria Formation. Conodont data that substantiate the above are presented, and a new genus and species, Sweetina triticum, is described. -Authors
Suggested Citation
Wardlaw, B.R., Collinson, J., 1986, Paleontology and deposition of the Phosphoria Formation.: Contributions to Geology - University of Wyoming, Laramie, v. 24, no. 2, p. 107-142.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Paleontology and deposition of the Phosphoria Formation. |
| Series title | Contributions to Geology - University of Wyoming, Laramie |
| Volume | 24 |
| Issue | 2 |
| Year Published | 1986 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Contributions to Geology - University of Wyoming, Laramie |
| First page | 107 |
| Last page | 142 |