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Dinokaart nr. 0842 van 2 027

Hydrotherosaurus

Naam beteken: “fisherman lizard”1

Het geëet: VleisPlesiosourusseLaat KrytTegnies nie 'n dinosourus nie

Hydrotherosaurus was a long-necked marine reptile that swam in the seas near California about 70 million years ago. It used its tiny head and super long neck to sneak up on fish and snap them up.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

72 tot 66 miljoen jaar gelede2

Laat Kryt

Fossiele gevind in

Panoche Hills, Fresno County, California, USA1 2

Lengte

7,8 tot 8,8 m (26 tot 29 ft)1

Gewig

1,9 ton (4 200 lb)1

Topspoed

omtrent 25 km/h (16 mph)

Swem, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

Hoe swaar was dit?

so swaar soos 1,5 motors

so lank soos 9 honde van neus tot stertso lank soos 49 piesangs punt aan puntso swaar soos 95 hondeso swaar soos 380 waatlemoeneso swaar soos 100 kleuterskoolkindersso swaar soos 59 skoolkindersso swaar soos 4 ysberekon die lengte van 'n groot swembad (50 m) in 7,2 sekondes swem

Hoe groot was Hydrotherosaurus 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)

Hydrotherosaurus omtrent 25 km/h (16 mph)

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

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

cool goed

Prettige feite

Hydrotherosaurus had one of the longest necks compared to its body of any elasmosaur, with 60 vertebrae in its neck.1

Its head was very small, only about 33 centimetres (13 inches) long.1

The first bones were found by Frank C. Paiva on his own property in California in 1937.1

A nearly complete skeleton was dug up and put on display at the Golden Gate International Exposition in San Francisco.1

It weighed about 1.9 metric tons (2.1 short tons), as heavy as a small car.1

Hydrotherosaurus lived in the Late Cretaceous period, between about 72 and 66 million years ago.1 2

KI-prent van Hydrotherosaurus — 'n KI-prent van hoe Hydrotherosaurus 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 Hydrotherosaurus

?How big was Hydrotherosaurus?

Hydrotherosaurus was about 7.8 to 8.8 metres long and weighed around 1.9 metric tons.1

?What did Hydrotherosaurus eat?

It was an active, fish-eating animal, using its long neck and small head to snap up fish.1 2

?When did Hydrotherosaurus live?

It lived during the Late Cretaceous period, about 72 to 66 million years ago.1

?Where was Hydrotherosaurus found?

Its fossils were found in California, USA, in the Moreno Formation of Fresno County.1 2

Vir dino-kenners

Wetenskaplike naam: Hydrotherosaurus
Benoem deur: Welles 19432
Groep: Plesiosourusse
Familie / klade: Elasmosauridae2
Klassifikasie: Plesiosauria > Elasmosauridae > Sauropterygia2
Ouderdom van die rotse: 72 tot 66 miljoen jaar (Maastrichtian)2
Rotsformasies: Moreno2
Lande: VSA2
Fossielrekords: 1 in The Paleobiology Database2
Ontdekking: The first fossils were found by Frank C. Paiva in the Panoche Hills of California in 1937. In 1943, paleontologist Samuel Paul Welles named the species Hydrotherosaurus alexandrae after Annie Montague Alexander.1
Steeds omstrede: Scientists are not sure exactly how Hydrotherosaurus used its extremely long neck while hunting.1

Waar die feite vandaan kom

Hydrotherosaurus (en.wikipedia.org)
Hydrotherosaurus 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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