James Clark is an American paleontologist specializing in the evolutionary relationships of dinosaurs, crocodilians, pterosaurs, and lepidosaurs. His lab studies relationships between extinct groups and their living relatives, and the early evolution of these groups.
He earned his Bachelor's (1978) and Master's (1985) degrees from the University of California, and his PhD from the University of Chicago (1986), all in the United States. He did post-doctoral work at the National Museum of Natural History and the American Museum of Natural History. He current title is Ronald Weintraub Associate Professor of Biology, Systematics and Paleontology of Dinosaurs and Crocodylomorpha, Department of Biological Sciences, at George Washington University in Washington, DC.
James has worked on research expeditions across the United States, Mexico, Vietnam, Yemen, Venezuela, and South Africa. He is currently researching the Middle to Late Jurassic deposits of the Shishugou Formation in Xinjiang, China.
James has helped discover or describe eighteen dinosaurs. A Late Cretaceous crocodile, Simosuchus clarki, was named after him.
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