Carta da dino nr. 1311 da 2 027

Oneirosaurus

Il num vul dir: “dream lizard”1

Mangiava: CharnMosasaursCretacic tardivTecnicamain betg in dinosaur

Oneirosaurus was a fierce marine lizard that swam in the warm seas of Colombia about 87 million years ago. It was a mosasaur, a relative of modern snakes and lizards, and it hunted fish and other sea creatures with its sharp teeth.2 1

Fatg divertent: quest reptil da mar nudava, entant ch'ils dinosaurs chaminavan sin terra. Tuts als numnan dinos, ma els eran in'autra rama dals reptils.

Viveva

avant 90 fin 86 milliuns onns4

Cretacic tardiv

Fossils chattads en

Lebrija, Santander, Colombia1

Lunghezza

4 m (13 ft)3

Spertadad maximala

var 37 km/h (23 mph)

Nudar, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

uschè lung sco 4 chauns dal nas a la cuauschè lung sco 22 bananas ina suenter l'autrapudess nudar la lunghezza d'ina gronda piscina (50 m) en 4,9 secundas

Quant grond era Oneirosaurus cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Oneirosaurus var 37 km/h (23 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Oneirosaurus had a unique feature: two holes in its skull for nerves X, XI, and XII to exit, a trait not seen in any other plioplatecarpine mosasaur.1

Its name means 'dream lizard,' because the scientists who described it thought finding such a complete fossil was like a dream.1

Oneirosaurus lived during the Coniacian stage, about 89.8 to 85.7 million years ago, in a shallow sea that covered what is now Colombia.2

The only known fossil of Oneirosaurus is a nearly complete skull with a lower jaw and a disarticulated atlas (the first neck vertebra).2

Oneirosaurus belonged to a group of mosasaurs called Plioplatecarpinae, which were medium-sized, fast-swimming predators.2

Its teeth had two sharp edges (carinae) arranged 180 degrees apart, perfect for slicing through flesh.2

Maletg da Oneirosaurus fatg cun IA — In maletg fatg cun IA che mussa co Oneirosaurus pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

Per experts da dinos

Num scientific: Oneirosaurus
Numnà da: Páramo Fonseca et al. 20254
Gruppa: Mosasaurs
Famiglia / clada: Mosasauridae4
Classificaziun: Mosasauroidea4
Vegliadetgna da la crappa: 90 fin 86 milliuns onns (Coniacian)4
Formaziuns da crap: Galembo4
Pajais: Columbia4
Chats da fossils: 1 en The Paleobiology Database4
Scuverta: Oneirosaurus was named in 2025 by María Eurídice Páramo Fonseca and colleagues, based on a skull found in the Galembo Formation of Colombia.1
Anc discutà: Scientists are still debating exactly how Oneirosaurus is related to other plioplatecarpine mosasaurs, especially its closeness to Yaguarasaurus columbianus and Ectenosaurus clidastoides.1

Danunder che vegnan ils fatgs

Oneirosaurus caballeroi gen. et sp. nov., a new mosasaur from Colombia | Earth Sciences Research Journal (revistas.unal.edu.co)
PBDB Taxon (paleobiodb.org)
Oneirosaurus caballeroi - Beschreibung, Dinodata.de (dinodata.de)
Oneirosaurus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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