Kirtland Formation, Geological formation in San Juan Basin, New Mexico, United States.
The Kirtland Formation extends across 594 meters in height and contains varied layers of sandstone, shale, mudstone, and conglomerate deposits.
C.M. Bauer named this formation in 1916 after the Kirtland Post Office, marking a period between 75 and 73.5 million years ago during the Late Cretaceous.
Scientists have discovered multiple dinosaur species within the formation, including Alamosaurus, Bistahieversor, Daspletosaurus, Pentaceratops, and Kritosaurus specimens.
Researchers access the formation through the San Juan Basin area to study its extensive coal deposits and conduct paleontological excavations.
The Hunter Wash member at the base of the formation contains preserved remains of ancient river systems and coastal plains from 75.02 million years ago.
Location: New Mexico
GPS coordinates: 36.70800,-108.35000
Latest update: March 11, 2025 12:03
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