Q: Who was Charles Doolittle Walcott?

A: Charles Doolittle Walcott was an American geologist and invertebrate paleontologist.

Q: What made Walcott famous?

A: Walcott became famous for his discovery of well-preserved fossils in the Burgess Shale of British Columbia, Canada, in 1909.

Q: What were Walcott's roles at the U.S. Geological Survey and the Smithsonian Institution?

A: Walcott was Director of the U.S. Geological Survey from 1894 to 1907, and Secretary of the Smithsonian Institution from 1907 to 1927.

Q: What other important fossil sites did Walcott discover?

A: Walcott discovered a number of important fossil sites, including the Walcott Quarry in the Canadian Rockies and the Walcott-Rust quarry near Russia, New York.

Q: How many specimens did Walcott collect at the Walcott Quarry?

A: Between 1910 and 1924, Walcott collected 65,000 specimens at the Walcott Quarry.

Q: When did the Walcott Quarry date to?

A: The Walcott Quarry dates to the Middle Cambrian.

Q: Where is the Walcott-Rust quarry located?

A: The Walcott-Rust quarry is located near Russia, New York.