Carta da dino nr. 0776 da 2 027

Halisaurus

Il num vul dir: “sea lizard”1

Mangiava: CharnMosasaursCretacic tardiv fin Cenozoic, il temp dals mammifersTecnicamain betg in dinosaur

Halisaurus was a small, sleek marine lizard that swam in the warm seas of the Late Cretaceous. It was not a dinosaur, but a mosasaur, a relative of today's monitor lizards. It used its long tail and flippers to chase fish and other prey.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 86 fin 62 milliuns onns2

Cretacic tardiv fin Cenozoic, il temp dals mammifers

Fossils chattads en

North America (USA: New Jersey, Maryland, Delaware, California, North Carolina, Georgia), Africa (Morocco, Angola, Egypt, Niger, Congo-Kinshasa), South America (Peru, Chile, Argentina), Middle East (Jordan)2 1

Lunghezza

3 fin 4 m (9,8 fin 13 ft)1

Spertadad maximala

var 37 km/h (23 mph)

Nudar, stima

Cura viveva el?

Avant ils dinosaurs

Temp dals dinosaurs

Temp dals mammifers

avant 400 milliuns onns25266oz

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 Halisaurus 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)

Halisaurus 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

Halisaurus was named by famous fossil hunter Othniel Charles Marsh in 1869.1

It was a small mosasaur, only about 3 to 4 metres long, much smaller than giants like Tylosaurus.1

Its flippers were not as specialized as those of later mosasaurs, so it was probably a slower swimmer.1

Fossils of Halisaurus have been found on every continent except Australia and Antarctica.2

The species Halisaurus onchognathus is known only from remains that were destroyed during World War II, so scientists are not sure if it was a real species.1

Halisaurus lived from about 85 to 66 million years ago, during the Late Cretaceous.2

Maletg da Halisaurus fatg cun IA — In maletg fatg cun IA che mussa co Halisaurus 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.

tias dumondas

Las dumondas las pli frequentas davart Halisaurus

?How big was Halisaurus?

Halisaurus was about 3 to 4 metres (9.8 to 13.1 feet) long, making it small for a mosasaur.1

?Was Halisaurus a dinosaur?

No, Halisaurus was not a dinosaur. It was a mosasaur, a marine lizard related to today's monitor lizards.1

?What did Halisaurus eat?

Halisaurus likely ate small fish and other small prey, based on its slender jaws and numerous small teeth.1

?Could Halisaurus swim fast?

Maybe up to about 37 km/h (23 mph) in a short burst. This is an estimate from its size. But it was probably not a great swimmer over long distances, because its flippers were not as good as those of later mosasaurs.1

?When did Halisaurus live?

Halisaurus lived during the Late Cretaceous, from about 86 to 66 million years ago.1

?Where have Halisaurus fossils been found?

Fossils have been found on every continent except Australia and Antarctica, including North America and North Africa.1

Chatschader da mitus

Mitus: Halisaurus was a dinosaur.

Vardad: Halisaurus was a mosasaur, a marine reptile closely related to modern monitor lizards, not a dinosaur.1

Per experts da dinos

Num scientific: Halisaurus
Numnà da: Marsh 18692
Gruppa: Mosasaurs
Famiglia / clada: Mosasauridae2
Classificaziun: Mosasauroidea2
Vegliadetgna da la crappa: 86 fin 62 milliuns onns (Santonian / Danian)2
Formaziuns da crap: Navesink, Severn, Marshalltown2
Pajais: USA, Marocco, Chile, Peru, Jordania, Angola2
Chats da fossils: 30 en The Paleobiology Database2
Scuverta: Halisaurus was named by Othniel Charles Marsh in 1869 based on a partial skull and vertebrae found near Hornerstown, New Jersey.1
Anc discutà: Scientists are not sure how many species of Halisaurus really existed, because some fossils are very fragmentary.1

Danunder che vegnan ils fatgs

Halisaurus (en.wikipedia.org)
Halisaurus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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