Dinokaart nr. 0776 van 2 027

Halisaurus

Naam beteken: “sea lizard”1

Het geëet: VleisMosasourusseLaat Kryt tot Senosoïkum, die era van die soogdiereTegnies nie 'n dinosourus nie

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

Prettige feit: hierdie seereptiel het geswem terwyl dinosourusse op land geloop het. Almal noem hulle dino's, maar hulle was 'n ander tak van die reptiele.

Het geleef

86 tot 62 miljoen jaar gelede2

Laat Kryt tot Senosoïkum, die era van die soogdiere

Fossiele gevind in

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

Lengte

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

Topspoed

omtrent 37 km/h (23 mph)

Swem, skatting

Wanneer het dit geleef?

Voor die dinosourusse

Era van die dinosourusse

Era van die soogdiere

400 miljoen jaar gelede25266vandag

Hoe groot was dit?

Hoe lank was dit?

so lank soos 4 honde van neus tot stertso lank soos 22 piesangs punt aan puntkon die lengte van 'n groot swembad (50 m) in 4,9 sekondes swem

Hoe groot was Halisaurus vergeleke met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of êrens heen gestuur nie.

Hoe vinnig was dit?

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

Halisaurus omtrent 37 km/h (23 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

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

KI-prent van Halisaurus — 'n KI-prent van hoe Halisaurus dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.

julle het gevra

Mees gevraagde vrae oor 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

Mite-breker

Mite: Halisaurus was a dinosaur.

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

Vir dino-kenners

Wetenskaplike naam: Halisaurus
Benoem deur: Marsh 18692
Groep: Mosasourusse
Familie / klade: Mosasauridae2
Klassifikasie: Mosasauroidea2
Ouderdom van die rotse: 86 tot 62 miljoen jaar (Santonian / Danian)2
Rotsformasies: Navesink, Severn, Marshalltown2
Lande: VSA, Marokko, Chili, Peru, Jordanië, Angola2
Fossielrekords: 30 in The Paleobiology Database2
Ontdekking: Halisaurus was named by Othniel Charles Marsh in 1869 based on a partial skull and vertebrae found near Hornerstown, New Jersey.1
Steeds omstrede: Scientists are not sure how many species of Halisaurus really existed, because some fossils are very fragmentary.1

Waar die feite vandaan kom

Halisaurus (en.wikipedia.org)
Halisaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dino-aanhangers, nie 'n wetenskapjoernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

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