Skip to search formSkip to main contentSkip to account menu

3. Paleocene Biochronology: The Puercan Through Clarkforkian Land Mammal Ages

View via Publisher (opens in a new tab)

Diversity of late Maastrichtian Tyrannosauridae (Dinosauria: Theropoda) from western North America

The tooth taxon Aublysodon mirandus was reinstated following the collection of nondenticulate tyrannosaurid premaxillary teeth from late Maastrichtian deposits in western North America, but is a nomen dubium because of the small size of Aublysdon crowns and evidence that some denticles develop late in growth in theropods.
View via Publisher (opens in a new tab)

A NEW GENUS AND SPECIES OF TYRANNOSAUROID FROM THE LATE CRETACEOUS (MIDDLE CAMPANIAN) DEMOPOLIS FORMATION OF ALABAMA

Cladistic analysis indicates the new taxon is a basal tyrannosauroid and its presence in eastern North America suggests that the recent common ancestor of Tyrannosauridae probably evolved following the transgression of the Western Interior Seaway.
View on Taylor & Francis (opens in a new tab)

A NEW GENUS OF DERIVED PACHYCEPHALOSAURIAN FROM WESTERN NORTH AMERICA

Pachycephalosaurian phylogeny does not support Asian-North American contiguity throughout the Campanian and Maastrichtian and is indicated to support a single dispersal event from Asia into North America, followed by dispersal of Prenocephale and Tylocephalosaurus into Asia prior to the late Campanian is indicated.
View on BioOne (opens in a new tab)

Bistahieversor sealeyi, gen. et sp. nov., a New Tyrannosauroid from New Mexico and the Origin of Deep Snouts in Tyrannosauroidea

Skeletal remains of Late Cretaceous (Campanian and Maastrichtian) tyrannosauroids are rare in southwestern North America (Carr and Williamson, 2000). Historically, the identity and diversity of…
View on Taylor & Francis (opens in a new tab)

THE SYSTEMATIC UTILITY OF THEROPOD ENAMEL WRINKLES

STEPHEN L. BRUSATTE,*'1 ROGER B. J. BENSON,2 THOMAS D. CARR,3 THOMAS E. WILLIAMSON,4 and PAUL C. SERENO5; 1Department of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road,…
View on Taylor & Francis (opens in a new tab)

Selachians from the Greenhorn Cyclothem (“Middle” Cretaceous: Cenomanian–Turonian), Black Mesa, Arizona, and the Paleogeographic distribution of Late Cretaceous selachians

Black Mesa in northeastern Arizona exposes sediments of late Cenomanian–Turonian age deposited during the transgressive–regressive Greenhorn cyclothem. These sediments contain a diverse selachian…
View on Cambridge Press (opens in a new tab)

The origin and early evolution of metatherian mammals: the Cretaceous record

Metatherian diversification patterns suggest that they were not strongly affected by a Cretaceous Terrestrial Revolution, but they clearly underwent a severe extinction across the K-Pg boundary.
View PDF (opens in a new tab)

The phylogeny and evolution of Cretaceous–Palaeogene metatherians: cladistic analysis and description of new early Palaeocene specimens from the Nacimiento Formation, New Mexico

Both the phylogenetic topology and information from new specimens support the validity of the genus Thylacodon and justify the recognition of a new species, T. montanensis, and suggest that Palaeogene taxa originated from only a few clades of Cretaceous species, all of which were relatively minor or very rare components of known Cret Jurassic mammalian faunas.
View on Taylor & Francis (opens in a new tab)

?Brachychampsa sealeyi, sp nov., (Crocodylia, Alligatoroidea) from the Upper Cretaceous (lower Campanian) Menefee Formation, northwestern New Mexico

ABSTRACT ?Brachychampsa sealeyi sp. nov. is a small alligatoroid based on a partial skull, associated partial mandible, and a dorsal? osteoderm from the Upper Cretaceous (lower Campanian) Menefee…
View via Publisher (opens in a new tab)
...
By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy Policy (opens in a new tab), Terms of Service (opens in a new tab), and Dataset License (opens in a new tab)