List of Appalachian dinosaurs

This is a list of dinosaurs whose remains have been recovered from Appalachia. During the Late Cretaceous period, the Western Interior Seaway divided the continent of North America into two landmasses; one in the west named Laramidia and Appalachia in the east. Since they were separated from each other, the dinosaur faunas on each of them were very different. For example, nodosaurs were common in Appalachia, but they were rare in Laramidia, and there were only specialized forms, such as Edmontonia and Panoplosaurus. This is an example of how isolated faunas develop differently.

List of Appalachian dinosaurs

Name	Period	Diet	Notes
Acrocanthosaurus	Cretaceous	carnivore	- Large carnivorous carcharodontosaurid found in Maryland.
Ammosaurus	Jurassic	herbivore	- Small herbivorous sauropodomorph found in Connecticut.
Anchisaurus	Jurassic	herbivore	- Small herbivorous sauropodomorph found in Connecticut.
Appalachiosaurus	Cretaceous	carnivore	- Large tyrannosauroid from Alabama.
Arkansaurus	Cretaceous	carnivore	-An indeterminate theropod from Arkansas. Many paleontologists believe it could be related to Ornithomimus.
Astrodon	Cretaceous	herbivore	- Large herbivorous sauropod found in Maryland.
Claosaurus	Cretaceous	herbivore	- A primitive hadrosaur. The only known fossil specimen found got washed into the Western Interior Seaway. It is believed to be from Appalachia because it was found closer to the Appalachia side of the sea and is unknown from Laramidia.
Coelosaurus	Cretaceous	carnivore/omnivore	- May be synonymous with Ornithomimus.
Deinonychus	Cretaceous	carnivore	- A medium-sized raptor found in Maryland.
Diplotomodon	Cretaceous	carnivore	- A dubious name for a species of tyrannosauroid from New Jersey, possibly for Dryptosaurus or a potentially new genus.
Dryptosaurus	Cretaceous	carnivore	- Medium-sized tyrannosauriod from New Jeresy.
Eotrachodon	Cretaceous	herbivore	- A hadrosaur from Alabama known from a nearly complete skeleton.
Hadrosaurus	Cretaceous	herbivore	- First known dinosaur skeleton from the United States. Discovered in 1858 in Haddonfield, New Jersey.
Hypsibema	Cretaceous	herbivore	- Little known hadrosaur first discovered in North Carolina in 1869. Better material of a second species was found in Missouri.
Lophorhothon	Cretaceous	herbivore	- A hadrosaur from Alabama with skull fragments discovered.
Niobrarasaurus	Cretaceous	herbivore	- Another example of a nodosaurid dinosaur from Kansas.
Parrosaurus	Cretaceous	herbivore	- A junior synonym of Hypsibema missouriensis. It is the state dinosaur of Missouri.
Priconodon	Cretaceous	herbivore	- A nodosaur from Maryland found only from fossilized teeth.
Propanoplosaurus	Cretaceous	herbivore	- A nodosaurid dinosaur from Maryland.
Podokesaurus	Jurassic	carnivore	- Small therapod from Connecticut River Valley, may be synonymous with Coelophysis.
Silvisaurus	Cretaceous	herbivore	- A herbivorous nodosaur from the state of Kansas. Similarly to Claosaurus, This specimen found was probably washed into the Western Interior Seaway. It is believed to be from Appalachia because it was found closer to the Appalachia side of the sea.
Tenontosaurus	Cretaceous	herbivore	- A herbivorous iguanodontid whose fossil remains have been discovered in Maryland.
Zephyrosaurus	Cretaceous	herbivore	- A herbivorous hypsilophodontid whose fossil remains have been discovered in Maryland and Virginia.

References