Hagryphus ‭(‬Ha’s griffin‭)

Short Info

Hagryphus ‭(‬Ha’s griffin‭)

Phonetic : Ha-grif-us.

Named By : L.‭ ‬E.‭ ‬Zanno‭ & ‬S.‭ ‬D.‭ ‬Sampson‭ ‬-‭ ‬2005

Diet : Omnivore

Size : Estimated 3 meters long

Type of Dinosaur : Small Theropod

Type Species : H.‭ ‬giganteus‭ (‬type‭)‬

Found in : USA,‭ ‬Utah‭ ‬-‭ ‬Kaiparowits Formation

When it Lived : Late Cretaceous, 75 million years ago

Hagryphus, also known as “Ha’s Griffin”, is an oviraptorosaurian dinosaur that lived in Utah’s Upper Cretaceous Period.


Hagryphus giganteus - Natural History Museum of Utah - DSC07248Daderot, CC0, via Wikimedia Commons


Lindsay Zanno, Scott Sampson and Scott Sampson have named only one species of Hagryphus, Hagryphus giganteus, to date. The name generic is derived form Egyptian Ha, the name for the god of western desert and a Latinised Greek grups or gryps meaning “griffin” (a mythological bird-like creature). Latin for “gigantic”, the specific name is

Michael Getty discovered the holotype in the Kaiparowits Formation, Late Campanian, in the Grand Staircase–Escalante National Monument in southern Utah in 2002. In 2003, scientists reported the discovery. Radiometric dating of rocks slightly below the fossil’s location indicates that the species died 75.95million years ago. The type specimen is designated UMNH VP 12765 and is located in the collections of Utah Museum of Natural History, Salt Lake City. It includes a distal portion and an incomplete left manus. The second claw is missing from the hand. The semilunate carpal bone as well as the radiale bones are both preserved in the wrist. A number of fragmentary foot elements found on the hillside close to the hand have also been cataloged under the same inventory.

Hagryphus giganteus, as the name suggests, was a large oviraptorosaur. It was approximately three meters (10 ft.) in length, making it the largest member of Oviraptorosauria (Barsbold 1976), and the only one to be described after the Gigantoraptor. H. giganteus was 30-40% larger in size than Chirostenotes, the largest North American oviraptorosaur. The holotype’s hand measured approximately a foot in length. Later estimates were lower. Gregory S. Paul, in 2010, estimated that the hand was eight feet long and that it weighed fifty kilogrammes.

Source: Wikipedia