Lance Grande

Lance Grande has been doing paleontological fieldwork in the Fossil Butte Member of southwestern Wyoming for more than thirty years and is one of the world's foremost authorities on this amazing locality. He is also a curator at the Field Museum of Natural History, Chicago, where he conducts research on fishes, paleontology, geology, and evolutionary biology. He is the award-winning author of more than one hundred books and scientific articles. His book "Gems and Gemstones: Timeless Natural...See more