Genus
Valid Extinct

Gnathomortis

Lively 2020

Gnathomortis is an extinct genus of marine lizard belonging to the mosasaur family. Fossils of Gnathomortis have been recovered from the Early Campanian Mancos Shale of Colorado. The genus contains a single species, G. stadtmani, considered a species of the related Prognathodon up until its 2020 redescription. It was a large mosasaur measuring 10.5 metres (34 ft) long.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Mosasaures
Carnivore aquatic Terrestrial
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PBDB ↗ Wikipedia ↗
Classification
Mosasauridae Family
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Mosasaurinae Subfamily
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Gnathomortis Genus
Fossil sites 1 geolocated sites
Distribution
Top countries
🇺🇸 United States
1
Geological formations
Mancos Shale
1
Temporal distribution
Campanian (83.6–72.2 Ma)
1
Species (1)
Gnathomortis stadtmani 84 Ma
Bibliography
Original description
J. R. Lively. 2020. Redescription and phylogenetic assessment of ‘Prognathodon’ stadtmani: implications for Globidensini monophyly and character homology in Mosasaurinae. Journal of Vertebrate Paleontology 40(3):e1784183 DOI ↗
Bibliography (1)
M. S. Kass. 1999. Prognathodon stadtmani: (Mosasauridae) a new species from the Mancos Shale (Lower Campanian) of western Colorado. Utah Geological Survey Miscellaneous Publication 99-1:275-294