Kristopher M. Kusnerik* and Steven M. Holland Department of Geology, University of Georgia Athens, Georgia 30602-2501

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Presentation transcript:

Kristopher M. Kusnerik* and Steven M. Holland Department of Geology, University of Georgia Athens, Georgia

Paleogeographic Setting Modified from Blakey (2014)

Geologic Setting Modified from McMullen et al. (2014)

Goals

13 localities 82 samples 49 taxa 14,550 specimens Sampling

Dominance and Diversity Gryphaea Liostrea Camptonectes Pachyteuthis

Dominance and Diversity

Gryphaea Pachyteuthis Liostrea Camptonectes

Dominance and Diversity Camptonectes Trigonia PleuromyaCorbicellopsis

Dominance and Diversity Camptonectes Procerithium Pleuromya Liostrea

Dominance and Diversity Camptonectes Kallirhynchia LiostreaMactromya

Detrended Correspondence Analysis Shallow depth Extreme salinities Varied temperature Deeper depth Stable salinity Stable temperature

Regional Dominance

Non-Metric Multidimensional Scaling

Softer, muddier substrate Harder, shelly substrate

1. Low diversity, high dominance 2. Salinity, water depth, temperature (deep, stable v. shallow, unstable) 3. Substrate (soft/muddy v. hard/shelly) Conclusions

Dr. Steven Holland Courtney Herbolsheimer, Annaka Clement, Jason Burwell, and Silvia Danise for assistance in the field Cliff and Row Manuel Thanks to the Geological Society of America, the American Museum of Natural History, and the University of Georgia for providing funding Thanks

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