Abstract
Fossils of theropod dinosaurs (cf. Albertosaurus ) indicate that the Ringbone Formation in the northern Little Hatchet Mountains of southwestern New Mexico is of Late Cretaceous (late Campanian-Maastrichtian) age. The broad distribution of the Ringbone and probable correlatives suggests the presence of one or more Laramide basins of lacustrine and fluvial deposition across southwestern New Mexico, southeastern Arizona and northern Mexico during the latest Cretaceous. This confirms previous paleogeographies that posit nonmarine conditions in this area by Coniacian time and thus does not support a recent suggestion of a latest Cretaceous-Eocene seaway in northern Mexico and southern New Mexico.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
