Genre
Valide Éteint

Oneirosaurus

Páramo Fonseca et al. 2025

Oneirosaurus is an extinct genus of plioplatecarpine mosasaurid known from the Late Cretaceous Galembo Formation of Colombia. The genus contains a single species, Oneirosaurus caballeroi, known from a well-preserved skull and mandible.

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Plage temporelle
Trias
Jurassique
Crétacé
Paléogène
Néogène
252 201 145 66 0 Ma
Occurrences PBDB
1
Groupe
Mosasaures
Carnivore aquatic Terrestre
Oneirosaurus
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Oneirosaurus caballeroi holotype IGMp879524. A, photograph, drawing and interpretative scheme of the specimen without left mandibular ramus, in right lateral view. B, photograph, drawing and interpretative scheme of the specimen without left mandibular ramus, in left lateral view. Gray fill, sediment; pattern fill, broken bone surface; black, empty space. Scale bars: A = 50 mm; C-D = 30 mm. Abbreviations: an, angular; avc, anterior aperture of the vidian canal; bo, basioccipital; bptm, basipterygoid meniscus; bs, basisphenoid; c, coronoid; d, dentary; ec, ectopterygoid; ep, epipterygoid; ex, exoccipital; f, frontal; im, internal auditory meatus; is, interorbital septum; j, jugal; la, lacrimal; m, mandible; mx, maxilla; na, nasal; op, opisthotic-exoccipital; p, parietal; par, prearticular; pl, palatine; pmx, premaxilla; pof, postorbitofrontal; pr, prootic; prf, prefrontal; ps, parasphenoid; pt, pterygoid; pvc, posterior aperture of the vidian canal q; quadrate; rv, right vomer; sa, surangular; scp, sclerotic plate; smx, septomaxilla; so, supraoccipital; sp, splenial; stp, stapes; VII, IX-XII, exit of cranial nerves. © M. E. Páramo-Fonseca, J. A. Narváez-Rincón & C. D. Benavides-Cabra · CC BY 4.0 · Wikimedia

Légende en anglais — traduction française non disponible.

PBDB ↗ Wikipedia ↗
Classification
Mosasauridae Famille
›
Plioplatecarpinae Sous-famille
›
Oneirosaurus Genre
Sites de découverte 1 sites géolocalisés
Répartition
Principaux pays
🇨🇴 Colombie
1
Formations géologiques
Galembo
1
Distribution temporelle
Coniacien (89.8–85.7 Ma)
1
Espèces (1)
Oneirosaurus caballeroi 90 Ma
Images 2
Bibliographie
Description originale
M. E. Páramo Fonseca, J. A. Narváez Rincón, and C. D. Benavides-Cabra. 2025. Oneirosaurus caballeroi gen. et sp. nov., a new mosasaur from Colombia. Earth Sciences Research Journal 29(3):231-247 DOI ↗
Bibliographie (1)
M. E. Páramo Fonseca, J. A. Narváez Rincón, and C. D. Benavides-Cabra. 2025. Oneirosaurus caballeroi gen. et sp. nov., a new mosasaur from Colombia. Earth Sciences Research Journal 29(3):231-247 DOI ↗