My name is Matt Jarrett; I received a BS in Geology from GeorgiaSouthwestern State University in Americus GA. While an undergrad I became interested in invertebrate fossils after taking a course on Invertebrate Paleobiology. My fascination in the fossil record centers around all topics involving paleoecology. While taking a stable isotope course from Dr. Romanek I learned ofthe properties of oxygen isotopes and how they could be applied to resolve questions of ancient climates. It seemed clear that this type of tool should be in every paleoecologist's toolbox. Upon learning of the historical significance of WilliamBartrum's and Charles Lyell's visitsto Shell Bluff GA from Dr. Romanek, I knew this field site would be the perfect place to conduct my graduate research. My Master's thesis involves constructing stable isotope profiles from giant oyster shells (Crassostrea gigantissima) of Late Eocene age to resolve questions of summer and winter ocean temperatures 38 million years ago.