Genus
Valid Extinct

Appalachiosaurus

Carr et al. 2005
Etymology Reptile des Appalaches

Appalachiosaurus is a genus of tyrannosauroid theropod dinosaur from the Late Cretaceous period of what is now eastern North America. It was a basal member of the clade Eutyrannosauria, meaning it was rather close in relation to the true tyrannosaurids such as Tyrannosaurus. Like most theropods, it was a bipedal predator. Only a juvenile skeleton has been found, representing an animal approximately 6.5 metres (21 ft) long and weighing 623 kilograms (1,373 lb), which indicates an adult would have been significantly larger.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
6
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
Appalachiosaurus
click to enlarge
Skeletal cast mount of Appalachiosaurus montgomeriensis on display at the Tellus Science Museum in Cartersville, Georgia. © Jonathan Chen · CC BY-SA 4.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
›
Theropoda Unranked clade
›
Neotheropoda Unranked clade
›
Averostra Unranked clade
›
Tetanurae Unranked clade
›
Coelurosauria Unranked clade
›
Tyrannosauroidea Superfamily
›
Appalachiosaurus Genus
Fossil sites 6 geolocated sites
Distribution
Top countries
🇺🇸 United States
6
Geological formations
Blufftown
2
Demopolis Chalk
1
Coachman
1
Donoho Creek
1
Steel Creek
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
1
Campanian (83.6–72.2 Ma)
5
Species (1)
Appalachiosaurus montgomeriensis 86 Ma
Images 1
Bibliography
Original description
T. D. Carr, T. E. Williamson, and D. R. Schwimmer. 2005. A new genus and species of tyrannosauroid from the Late Cretaceous (Middle Campanian) Demopolis formation of Alabama. Journal of Vertebrate Paleontology 25(1):119-143 DOI ↗
Bibliography (3)
D. R. Schwimmer, A. E. Sanders, and B. R. Erickson, R. E. Weems. 2015. A Late Cretaceous dinosaur and reptile assemblage from South Carolina, USA. Transactions of the American Philosophical Society 105(2):1-157
S. M. Ebersole and J. L. King. 2011. A review of non-avian dinosaurs from the Late Cretaceous of Alabama, Mississippi, Georgia, and Tennessee. Bulletin of the Alabama Museum of Natural History 28:81-93
T. D. Carr, T. E. Williamson, and D. R. Schwimmer. 2005. A new genus and species of tyrannosauroid from the Late Cretaceous (Middle Campanian) Demopolis formation of Alabama. Journal of Vertebrate Paleontology 25(1):119-143 DOI ↗