Supradapedon is an extinct genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of hyperodapedontine

Hyperodapedontinae

Hyperodapedontinae is a subfamily of rhynchosaurs within the family Hyperodapedontidae. Fossils have been found from Argentina, Brasil, Canada, India, Madagascar, Scotland, Tanzania, USA and Zimbabwe.-Classification:...

 rhynchosaur

Rhynchosaur

Rhynchosaurs were a group of Triassic diapsid reptiles related to the archosaurs.-Description:Rhynchosaurs were herbivores, and at times abundant , with stocky bodies and a powerful beak...

 from mid-late Triassic

Triassic

The Triassic is a geologic period and system that extends from about 250 to 200 Mya . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events...

 deposits of Tanganyika Territory

Tanganyika Territory

Tanganyika Territory was a British colony between 1919 and 1961. Prior to the end of the First World War was part of the German colony of German East Africa. After the war had broke out, the British invaded the German East Africa, but were unable to defeat the German Army...

, Tanzania

Tanzania

The United Republic of Tanzania is a country in East Africa bordered by Kenya and Uganda to the north, Rwanda, Burundi, and the Democratic Republic of the Congo to the west, and Zambia, Malawi, and Mozambique to the south. The country's eastern borders lie on the Indian Ocean.Tanzania is a state...

. It is known from the holotype

Holotype

A holotype is a single physical example of an organism, known to have been used when the species was formally described. It is either the single such physical example or one of several such, but explicitly designated as the holotype...

 SAM-11704. The holotype and only specimen of Supradapedon was first assigned to a species of Scaphonyx (now considered to be a nomen dubium

Nomen dubium

In zoological nomenclature, a nomen dubium is a scientific name that is of unknown or doubtful application...

), Scaphonyx stockleyi. This species was reassigned to its own genus by Sankar Chatterjee

Sankar Chatterjee

Sankar Chatterjee is a paleontologist, and is the Paul W. Horn Professor of Geosciences at Texas Tech University and Curator of Paleontology at the Museum of Texas Tech University. He earned his Ph. D. from the University of Calcutta in 1970 and was a Post-doctoral Fellow at the Smithsonian...

 in 1980

1980 in paleontology

-Newly named dinosaurs:Data courtesy of George Olshevsky's dinosaur genera list and Dr. Jeremy Montague's dinosaur genus database.-New taxa:-New taxa:-Non-mammalian:-References:...

 and the type species is Supradapedon stockleyi. One study, Langer et al. (2000), concluded that Supradapedon is a synonym of Hyperodepedon

Hyperodepedon

Hyperodapedon is a genus of rhynchosaur from the late Triassic period . The type species of Scaphonyx , Scaphonyx fischeri that once thought to be a dinosaur, is now known to be based on dubious material and therefore should be a nomen dubium...

and referred it to Hyperodepedon sp. However, the provisional validity of this genus has been commonly accepted since.