LOYDELL, D. K., KLEFFNER, M. A., MULLINS, G. L., BUTCHER, A., MATTESON, D. K., EBERT, J. R. (2007) The lower Williamson Shale (Silurian) of New York: a biostratigraphical enigma. Geological Magazine, 144 (2) 225-234 doi:10.1017/s0016756806003049
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | The lower Williamson Shale (Silurian) of New York: a biostratigraphical enigma | ||
| Journal | Geological Magazine | ||
| Authors | LOYDELL, D. K. | Author | |
| KLEFFNER, M. A. | Author | ||
| MULLINS, G. L. | Author | ||
| BUTCHER, A. | Author | ||
| MATTESON, D. K. | Author | ||
| EBERT, J. R. | Author | ||
| Year | 2007 (March) | Volume | 144 |
| Issue | 2 | ||
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s0016756806003049Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 260022 | Long-form Identifier | mindat:1:5:260022:6 |
| GUID | 0 | ||
| Full Reference | LOYDELL, D. K., KLEFFNER, M. A., MULLINS, G. L., BUTCHER, A., MATTESON, D. K., EBERT, J. R. (2007) The lower Williamson Shale (Silurian) of New York: a biostratigraphical enigma. Geological Magazine, 144 (2) 225-234 doi:10.1017/s0016756806003049 | ||
| Plain Text | LOYDELL, D. K., KLEFFNER, M. A., MULLINS, G. L., BUTCHER, A., MATTESON, D. K., EBERT, J. R. (2007) The lower Williamson Shale (Silurian) of New York: a biostratigraphical enigma. Geological Magazine, 144 (2) 225-234 doi:10.1017/s0016756806003049 | ||
| In | (2007, March) Geological Magazine Vol. 144 (2) Cambridge University Press (CUP) | ||
| Abstract/Notes | The lower Williamson Shale at Tryon Park, Rochester, New York State is unique in the co-occurrence of Stimulograptus clintonensis (Hall), previously recorded only from the middle Telychian, and Pterospathodus amorphognathoides amorphognathoides Walliser, previously recorded only from the upper Telychian (Cyrtograptus lapworthi Biozone and higher). These two co-occurring fossils are clearly providing contradictory ages for the lower Williamson Shale. The incorporation of chitinozoan data from both the Williamson and Willowvale shales does not support unequivocally either the graptolite- or conodont-derived biostratigraphy and thus the age of the lower Williamson Shale remains problematical. | ||
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