Dino txartela, 1462. zk. (2 027 guztira)

Portunatasaurus

Izenaren esanahia: “Dugi Otok lizard”1

Jaten zuen: HaragiaMosasauroakGoi KretazeoaTeknikoki ez da dinosauroa

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

Datu dibertigarria: itsas narrasti hau igerian zebilen dinosauroak lehorrean ibiltzen ziren bitartean. Denek dino deitzen diete, baina narrastien beste adar bat ziren.

Bizi izan zen

Duela 100 eta 90 milioi urte artean4

Goi Kretazeoa

Fosilak hemen aurkitu dira:

Dugi Otok island, Croatia1 2

Luzera

1 m (3,3 ft)1

Abiadura maximoa

12 km/h inguru (7 mph)

Igeri egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

2 etxeko katu bezain luze, sudurretik buztanerabata bestearen atzean jarritako 6 banana bezain luzeigerileku handi baten luzera (50 m) 15 segundotan egin zezakeen igerian

Zein handia zen Portunatasaurus ZUREKIN alderatuta?

Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.

Zein azkarra zen?

Pertsona bat oinez 5 km/h inguru (3 mph)

Haur bat bizikletan 12 km/h inguru (7 mph)

Portunatasaurus 12 km/h inguru (7 mph)

Zaldi bat lauhazka 65 km/h inguru (40 mph)

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

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

Portunatasaurus: AAk egindako irudia — Portunatasaurus nolakoa izan zitekeen erakusten duen AAk egindako irudia, ordenagailu batek zientzialariek dakitenetik sortua. Asmakizun bat da: benetako animalia desberdina izan zitekeen, eta inork ez daki zein ziren bere benetako koloreak.

zure galderak

Portunatasaurus: gehien egindako galderak

?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

Dino adituentzat

Izen zientifikoa: Portunatasaurus
Izendatzailea:: Campbell Mekarski et al. 20194
Taldea: Mosasauroak
Familia / klada: Mosasauroidea4
Sailkapena: Mosasauroidea4
Arroken adina: 100 eta 90 milioi urte artean (Cenomanian / Turonian)4
Herrialdeak: Kroazia4
Fosil-erregistroak: 1 The Paleobiology Database datu-basean4
Aurkikuntza: 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
Oraindik eztabaidagai: Scientists are still debating whether its paddle-like arm evolved earlier in mosasaur history or evolved more than once.2

Datuak nondik datozen

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): adina, tokiak, arroka-formazioak, sailkapena.

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