{"identifier":"nobleid:/w1/20260521/DA72CFDF","arkIdentifier":"ark:/48914/w1/20260521/DA72CFDF","version":1,"workTitle":"Direct U-Pb dating of Cretaceous and Paleocene dinosaur bones, San Juan Basin, New Mexico: COMMENT","workType":"Journal Article","authors":"K. R. Ludwig","description":null,"workUrl":null,"existingDoi":"10.1130/g32503c.1","createdAt":"2026-05-21T12:49:58.413722Z","canonicalUrl":"https://nobleid.org/ark:/48914/w1/20260521/DA72CFDF.v1"}