Genus
Valid Extinct

Eonatator

Bardet et al. 2005

Eonatator is an extinct genus of marine lizard belonging to the mosasaur family. It is a close relative of Halisaurus, and part of the same subfamily, the Halisaurinae. It is known from the Late Cretaceous of North America, Colombia and Sweden. Originally, this taxon was included within Halisaurus, but was placed in its own genus, which also led to the subfamily Halisaurinae being created for the two genera.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
9
Group
Mosasaures
Carnivore aquatic Terrestrial
Eonatator
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Physical Location map of Colombia Equirectangular projection. Geographic limits of the map: © Grundkarte Milenioscuro, Relief Alexrk2 · CC BY-SA 3.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Mosasauridae Family
›
Halisaurinae Unranked clade
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Halisaurini Unranked clade
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Eonatator Genus
Fossil sites 9 geolocated sites
Distribution
Top countries
🇸🇪 Sweden
6
🇺🇸 United States
2
🇨🇴 Colombia
1
Geological formations
Niobrara
1
Nivel de Lutitas y Arenas
1
Temporal distribution
Campanian (83.6–72.2 Ma)
8
Santonian (85.7–83.6 Ma)
1
Species (2)
Eonatator coellensis 84 Ma
Eonatator sternbergii 86 Ma
Images 1
Bibliography
Original description
N. Bardet, X. Pereda Suberbiola, and M. Iarochene, B. Bouya, M. Amaghaz. 2005. A new species of Halisaurus from the Late Cretaceous phosphates of Morocco, and the phylogenetical relationships of the Halisaurinae (Squamata: Mosasauridae). Zoological Journal of the Linnean Society 143:447-472 DOI ↗
Bibliography (5)
M. E. Páramo-Fonseca. 2013. Eonatator coellensis nov. sp. (Squamata: Mosasauridae), a new species from the Upper Cretaceous of Colombia. Revista de la Academia Colombiana de Ciencias 37(145):499-518
A. M. Sørensen, F. Surlyk, and J. Lindgren. 2013. Food resources and habitat selection of a diverse vertebrate fauna from the upper lower Campanian of the Kristianstad Basin, southern Sweden. Cretaceous Research 42(1):85-92 DOI ↗
J. Lindgren and M. Siverson. 2005. Halisaurus sternbergi, a small mosasaur with an intercontinental distribution. Journal of Paleontology 79(4):763-773 DOI ↗
D. A. Russell. 1970. The vertebrate fauna of the Selma Formation of Alabamam: Part VII The Mosasaurs. Fieldiana: Geology Memoirs 3(7):365-380 DOI ↗
D. A. Russell. 1967. Systematics and morphology of American mosasaurs (Reptilia, Sauria). Bulletin of the Peabody Museum of Natural History 23:1-252