It comprises the Yucatán Peninsula and its continental shelf, located between the Gulf of Mexico and the Caribbean Sea.

[3][4] Their British, Belizean, and Mexican counterparts have not defined an equivalent geologic, physiographic, or geomorphic province or region.

[citation needed] The exposed or peninsular portion of the Yucatán Platform encompasses four districts of Belize (i.e., Corozal, Orange Walk, Belize, and Cayo), one department of Guatemala (i.e., Peten), and four states of Mexico (i.e., Quintana Roo, Yucatán, Campeche, and Tabasco).

[5] At least six fault systems or zones have been identified in the Yucatán Platform, namely, the Holbox, Hondo, Ticul, Ring of Cenotes, Chemax‍–‍Catoche, and La Libertad, with the first four of these considered prominent.

[7][8] The subaerially exposed (i.e., peninsular) portion of the platform is thought to have been fully submarine up to some 30‍–‍10 million years ago.