Mailing address: PO Box 208109, New Haven CT 06520-8109
Street address: 210 Whitney Ave., New Haven CT 06511
My niche is in the field of geochemistry, specifically paleoclimate. I am recalibrating the δ18O paleothermometer for organisms that mineralize phosphate in their tissues using the biogenic apatite found in modern gar, Lepisosteus sp., scales. These fish are an ancient lineage that trace back their phylogeny 100 Ma and are unique in that their scales are essentially pure enamel. This makes gar scales ripe for fossilization as they are already 95% mineral during life.
This modern calibration is being applied to fossil gar scales that encompass the K-Pg boundary at a locality in North Dakota.