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Charles E. Mitchell
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Journal Article

The impact of geographic range, sampling, ecology, and time on extinction risk in the volatile clade Graptoloida

James Boyle, H. David Sheets, Shuang-Ye Wu, Daniel Goldman, Michael J. Melchin, Roger A. Cooper, Peter M. Sadler, Charles E. Mitchell
Published: 01 February 2017
Paleobiology (2017) 43 (1): 85–113.
DOI: https://doi.org/10.1017/pab.2016.33
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Morphometric analysis of ontogeny and allometry of the Middle Ordovician trilobite Triarthrus becki

Keonho Kim, H. David Sheets, Robert A. Haney, Charles E. Mitchell
Published: 01 January 2002
Paleobiology (2002) 28 (3): 364–377.
DOI: https://doi.org/10.1666/0094-8373(2002)028<0364:MAOOAA>2.0.CO;2
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Uncorrelated change produces the apparent dependence of evolutionary rate on interval

H. David Sheets, Charles E. Mitchell
Published: 01 January 2001
Paleobiology (2001) 27 (3): 429–445.
DOI: https://doi.org/10.1666/0094-8373(2001)027<0429:UCPTAD>2.0.CO;2
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The stratigraphic distribution of graptolites in the classic upper Middle Ordovician Utica Shale of New York State; an evolutionary succession or a response to relative sea-level change?

Daniel Goldman, Charles E. Mitchell, Michael P. Joy
Published: 01 July 1999
Paleobiology (1999) 25 (3): 273–294.
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