CentralNotice From Wikipedia, the free encyclopedia Jump to navigation Jump to search Prehistoric impact crater buried underneath the Yucatán Peninsula in Mexico For the town and municipality, see Chicxulub, Yucatán . This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed. Find sources: "Chicxulub crater" – news · newspapers · books · scholar · JSTOR ( July 2019 ) ( Learn how and when to remove this template message ) Chicxulub crater Chicxulub impact structure Imaging from NASA 's Shuttle Radar Topography Mission STS-99 reveals part of the 180 km (110 mi) diameter ring of the crater. The numerous sinkholes clustered around the trough of the crater suggest a prehistoric oceanic basin in the depression left by the impact. [1] I...