Roland T. Bird
Roland Thaxter Bird (December 29, 1899 – January 24, 1978) was an American palaeontologist. He is best known for his discovery of fossil trackways, including the first scientifically documented sauropod tracks, in the Glen Rose Formation near the Paluxy River in Texas, an area later designated the Dinosaur Valley State Park, and for his work with the American Museum of Natural History.