Dinokaart nr. 1462 van 2 027

Portunatasaurus

Naam beteken: “Dugi Otok lizard”1

Het geëet: VleisMosasourusseLaat KrytTegnies nie 'n dinosourus nie

Portunatasaurus was a small marine lizard that swam in warm seas during the time of the dinosaurs. It was only about 1 meter long, as long as a big skateboard, and had a long body and special flipper-like arms.1 2

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

100 tot 90 miljoen jaar gelede4

Laat Kryt

Fossiele gevind in

Dugi Otok island, Croatia1 2

Lengte

1 m (3,3 ft)1

Topspoed

omtrent 12 km/h (7 mph)

Swem, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

so lank soos 2 huiskatte van neus tot stertso lank soos 6 piesangs punt aan puntkon die lengte van 'n groot swembad (50 m) in 15 sekondes swem

Hoe groot was Portunatasaurus 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)

Portunatasaurus omtrent 12 km/h (7 mph)

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

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

cool goed

Prettige feite

Portunatasaurus had 10 small bones in its wrist, like land lizards, but also a flattened first finger bone like later sea lizards.2

Its arm was a mix between a walking leg and a swimming paddle, showing how lizards slowly turned into sea swimmers.2

The only skeleton found was almost complete from the neck to the hips, with a perfectly preserved right arm.2

It lived about 100 to 90 million years ago, during the Cenomanian and Turonian ages of the Late Cretaceous.3

Portunatasaurus is the third and youngest aigialosaur (a type of early marine lizard) found in Croatia.2

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

?Is Portunatasaurus a dinosaur?

No, it is a mosasauroid marine lizard, not a dinosaur.1

?How big was Portunatasaurus?

About 1 meter (3.3 feet) long, as long as a big skateboard.1

?What did Portunatasaurus eat?

Scientists do not know for sure, but its jaws were not found, so it is unknown what it ate.2

?Where was Portunatasaurus found?

It was found on the island of Dugi Otok in Croatia.1 4

Vir dino-kenners

Wetenskaplike naam: Portunatasaurus
Benoem deur: Campbell Mekarski et al. 20194
Groep: Mosasourusse
Familie / klade: Mosasauroidea4
Klassifikasie: Mosasauroidea4
Ouderdom van die rotse: 100 tot 90 miljoen jaar (Cenomanian / Turonian)4
Lande: Kroasië4
Fossielrekords: 1 in The Paleobiology Database4
Ontdekking: The skeleton was found in 2008 on the island of Dugi Otok in Croatia. Scientists Michelle Mekarski, Dražen Japundžić, Katarina Krizmanić and Michael Caldwell named it Portunatasaurus krambergeri in 2019.1 2
Steeds omstrede: Scientists are still debating whether its paddle-like arm evolved earlier in mosasaur history or evolved more than once.2

Waar die feite vandaan kom

Portunatasaurus (en.wikipedia.org)
Description of a new basal mosasauroid from the Late Cretaceous of Croatia, with comments on the evolution of the mosasauroid forelimb (exa.ai)
PBDB Taxon (paleobiodb.org)
Portunatasaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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