BOZEMAN — A “60 Minutes” segment featuring Montana State University paleontologist Jack Horner and former MSU graduate student Mary Higby Schweitzer is scheduled to air Sunday evening.

Meghan Frank, a producer for the CBS TV magazine, said the date is “pretty definite,” although major late-breaking news could postpone the segment.

The piece will focus on Horner, his discoveries and his unorthodox approach to thinking about dinosaurs, Frank said.

The segment will also feature Schweitzer, her work with Horner and her discoveries from an Eastern Montana dinosaur originally nicknamed “B. rex.” The 68-million-year-old dinosaur yielded protein, soft tissue, blood vessels and tissue typical of a female bird.

Horner is regent’s professor of paleontology at MSU’s Museum of the Rockies. Schweitzer, a Montana native, is associate professor in the Department of Marine, Earth and Atmospheric Sciences at North Carolina State University and associate curator of vertebrate paleontology at the North Carolina State Museum of Natural Sciences.

Correspondent Lesley Stahl and a film crew came to MSU in May to film Horner and Schweitzer for a segment on scientists who study extinct animals. The segment ended up focusing on Horner and Schweitzer, with the other footage saved for another segment, Frank said.

While on campus, “60 Minutes” filmed in the Museum of the Rockies, the Imaging and Chemical Analysis Laboratory and the modular buildings just north of the new Chemistry and Biochemistry Building. The crew also filmed at Egg Mountain near Choteau.