Genus
Valid Extinct

Infernodrakon

Thomas et al. 2025

Infernodrakon is a genus of azhdarchid pterosaurs from the Upper Cretaceous Hell Creek Formation of Montana, United States. The genus contains a single species, I. hastacollis, known from a single neck vertebra. Based on comparisons with related azhdarchids, it probably had a wingspan of about 4.15 m (13.6 ft).

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Ptérosaures
Piscivore Volant Marine
Infernodrakon
click to enlarge
Skeletal diagram of Infernodrakon hastacollis showing known fossil material of the holotype (BMR P2002.2) specimen. Scale bar=50 cm. Key  =Holotype (BMR P2002.2)  =Unknown References "Infernodrakon hastacollis gen. et sp. nov., a new azhdarchid pterosaur from the Hell Creek Formation of Montana, and the pterosaur diversity of Maastrichtian North America" "Morphology and taxonomy of Quetzalcoatlus Lawson 1975 (Pterodactyloidea: Azhdarchoidea)" "Functional morphology of Quetzalcoatlus Lawson 1975 (Pterodactyloidea: Azhdarchoidea)" "Neck biomechanics indicate that giant Transylvanian azhdarchid pterosaurs were short-necked arch predators" Quetzalcoatlus lawsoni skeletal by Brennon Valdez, 2022 © SlvrHwk · CC BY-SA 4.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Pterosauria Order
›
Pterodactyloidea Suborder
›
Azhdarchoidea Superfamily
›
Azhdarchidae Family
›
Quetzalcoatlinae Subfamily
›
Infernodrakon Genus
Fossil sites 1 geolocated sites
Distribution
Top countries
🇺🇸 United States
1
Geological formations
Hell Creek
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
1
Species (1)
Infernodrakon hastacollis 72 Ma
Images 1
Bibliography
Original description
H. N. Thomas, D. W. E. Hone, and T. Gomes, J. E. Peterson. 2025. Infernodrakon hastacollis gen. et sp. nov., a new azhdarchid pterosaur from the Hell Creek Formation of Montana, and the pterosaur diversity of Maastrichtian North America. Journal of Vertebrate Paleontology (e2442476) DOI ↗
Bibliography (1)
H. N. Thomas, D. W. E. Hone, and T. Gomes, J. E. Peterson. 2025. Infernodrakon hastacollis gen. et sp. nov., a new azhdarchid pterosaur from the Hell Creek Formation of Montana, and the pterosaur diversity of Maastrichtian North America. Journal of Vertebrate Paleontology (e2442476) DOI ↗