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DINOSAUR TYPE SPECIMENS
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Camptosaurus browni
Camptosaurus depressus
Camptosaurus nanus
Capitalsaurus” [see Creosaurus potens]
Ceratops alticornis [see Triceratops alticornis]
Ceratops montanus
Ceratops paucidens [see Hadrosaurus paucidens]
Ceratosaurus nasicornis
Chassternbergia rugosidens [see Palaeoscincus rugosidens]
Claosaurus annectens
Coelurus gracilis
> Creosaurus potens

> Creosaurus potens - Lull 1911  
Catalogue: USNM 3049
Material: caudal (tail) vertebra
Classification: Saurischia, Theropoda
Collected: J. K. Murphy, late 1800s
Place: Arundel Formation, Washington, D.C., USA
Time: Aptian, Early Cretaceous
Original Publication: R. S. Lull. 1911. Maryland Geological Survey Stratigraphic Series: Lower Cretaceous:173-178
Other References: Gilmore, 1920

This species of theropod has the unique distinction of being discovered underneath the nations’s capital! It was found in downtown Washington, D.C. in the late 1800’s during an excavation for a sewer line. It is presumed to be from the Arundel Formation (Early Cretaceous Period). The type material consists only of the centrum (base) part of a vertebra of what is now considered to be either an indeterminate theropod, or some form of saurischian dinosaur. Unfortunately this specimen was used to try and name a new genus, “Capitalsaurus”, in honor of the nations’s capital. This is not scientifically justified and the name “Capitalsaurus” has no validity.