New records of theropods from the latest Cretaceous of New Jersey and the Maastrichtian Appalachian fauna

  title={New records of theropods from the latest Cretaceous of New Jersey and the Maastrichtian Appalachian fauna},
  author={Chase Doran Brownstein},
  journal={Royal Society Open Science},
  • C. Brownstein
  • Published 1 November 2019
  • Geography, Environmental Science
  • Royal Society Open Science
The faunal changes that occurred in the few million years before the Cretaceous–Palaeogene extinction are of much interest to vertebrate palaeontologists. Western North America preserves arguably the best fossil record from this time, whereas terrestrial vertebrate fossils from the eastern portion of the continent are usually limited to isolated, eroded postcranial remains. Examination of fragmentary specimens from the American east, which was isolated for the majority of the Cretaceous as the… 

Figures and Tables from this paper

Osteology and phylogeny of small-bodied hadrosauromorphs from an end-Cretaceous marine assemblage
The marine depositional setting for these skeletons demonstrates that proposed ecosystem preferences among hadrosauromorphs may be biased by post-mortem transportation, and the adult skeleton has implications for assessing the proposed relictual nature of Late Cretaceous eastern North American vertebrates.
A newly recognized theropod assemblage from the Lewisville Formation (Woodbine Group; Cenomanian) and its implications for understanding Late Cretaceous Appalachian terrestrial ecosystems
While the terrestrial fossil record of the mid-Cretaceous interval (Aptian to Cenomanian) in North America has been poorly studied, the recent focus on fossil localities from the western United
An Appalachian population of neochoristoderes (Diapsida, Choristodera) elucidated using fossil evidence and ecological niche modelling
Four neochoristoderan vertebral centra are described from the latest Cretaceous of New Jersey, USA. One specimen was recovered from the basal transgressive lag of the Navesink Formation in the area
The first juvenile dromaeosaurid (Dinosauria: Theropoda) from Arctic Alaska
This is the first confirmed non-dental fossil specimen from a member of Dromaeosauridae in the Arctic, expanding on the role of Beringia as a dispersal route for this clade between Asia and North America.


Small Theropod Teeth from the Late Cretaceous of the San Juan Basin, Northwestern New Mexico and Their Implications for Understanding Latest Cretaceous Dinosaur Evolution
Small theropod teeth from the San Juan Basin of northwestern New Mexico are described and it is shown that erect and recurved morphs of a Richardoestesia-like taxon represent a single heterodont species, which may provide evidence for an abrupt dinosaur extinction.
The distinctive theropod assemblage of the Ellisdale site of New Jersey and its implications for North American dinosaur ecology and evolution during the Cretaceous
  • C. Brownstein
  • Geography, Environmental Science
    Journal of Paleontology
  • 2018
Abstract The Cretaceous landmass of Appalachia has preserved an understudied but nevertheless important record of dinosaurs that has recently come under some attention. In the past few years, the
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.
A new dromaeosaurid (Dinosauria: Theropoda) with Asian affinities from the latest Cretaceous of North America
Phylogenetic analysis suggests Acheroraptor is a velociraptorine that is more closely related to Asian dromaeosaurids, including Tsaagan and Velocirptor, than it is to Dromaeosaurus, Saurornitholestes, or any other taxon from North America.
Theropod dinosaurs from the Albian–Cenomanian Wayan Formation of eastern Idaho
Abstract The record of terrestrial vertebrates in the upper Albian to Cenomanian Wayan Formation of Idaho is sparse, with most fossils recovered belonging to the small orodromine neornithischian
A large dromaeosaurid from North Carolina
  • C. Brownstein
  • Geography, Environmental Science
    Cretaceous Research
  • 2018
The biogeography and ecology of the Cretaceous non-avian dinosaurs of Appalachia
The Cenomanian to Maastrichtian of the Late Cretaceous saw the flooding of the interior of North America by the Western Interior Seaway, which created the eastern landmass of Appalachia and the
The Anatomy of Dryptosaurus aquilunguis (Dinosauria: Theropoda) and a Review of Its Tyrannosauroid Affinities
This description confirms the tyrannosauroid affinities of Dryptosaurus and supports its placement as an “intermediate” taxon bracketed between small, basal forms and the derived, Late Cretaceous tyrannosaurids.
A Late Cretaceous Dinosaur and Reptile Assemblage from South Carolina, USA
Transactions 105/1 (AGAINST TIME: Letters from Nazi Germany, 1938-1939) will not be available until July or August 2015. We apologize for the delay, and appreciate your patience.PREFACEThis volume
The first reported ceratopsid dinosaur from eastern North America (Owl Creek Formation, Upper Cretaceous, Mississippi, USA)
It is hypothesize that the age of the fossil is consistent with a dispersal of ceratopsids into eastern North America during the very latest Cretaceous, presumably after the two halves of North America were reunited following the retreat of the Western Interior Seaway.