Kathryn Puseman is a macrobotanical expert with over 26 years of experience working with macrofloral remains, charcoal, and wood for archaeological and paleoenvironmental projects.

Kathy has experience with both prehistoric and historic samples from a variety of sites in North and South America, Europe, Asia, and the Pacific Islands.  Kathy has also worked with geologists to recover datable material for paleoflood and paleoseismic studies.

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Chad Yost is a paleoecologist and microbotanical specialist with 14 years of experience providing phytolith and starch grain analyses for paleoecological and archaeological investigations.

Chad has worked on a wide variety of historic and prehistoric samples and materials from North and South America, Europe, Africa, and the Pacific Islands.

Chad also has an extensive background as a botanist and field ecologist and is currently a graduate student at the University of Arizona, pursuing a Ph.D. in geosciences.

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