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Atopodentatus

Izenaren esanahia: “unusual tooth”1

Jaten zuen: LandareakItsas narrastiakErdi TriasikoaTeknikoki ez da dinosauroa

Atopodentatus was a weird marine reptile that lived in the sea about 245 million years ago. It had a hammer-shaped head and used its special teeth to scrape algae off rocks, like a underwater lawnmower.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 244 eta 243 milioi urte artean3

Erdi Triasikoa

Fosilak hemen aurkitu dira:

Luoping County, Yunnan Province, China1

Luzera

2,75 m (9 ft)1

Abiadura maximoa

22 km/h inguru (14 mph)

Igeri egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

3 txakur bezain luze, sudurretik buztanerabata bestearen atzean jarritako 15 banana bezain luzeigerileku handi baten luzera (50 m) 8,2 segundotan egin zezakeen igerian

Zein handia zen Atopodentatus 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)

Atopodentatus 22 km/h inguru (14 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Atopodentatus is the oldest known plant-eating marine reptile. It lived about 6 million years after the great Permian extinction.2

Its head was shaped like a hammer, similar to a hammerhead shark. But Atopodentatus used its hammerhead for grazing on algae, not for sensing prey.2

The front of its jaws had chisel-shaped teeth for scraping algae. The back of its jaws had a mesh of needle-shaped teeth that acted like a strainer.2

Atopodentatus was about 2.75 meters (9 feet) long, about as long as a small car.1

Scientists first thought Atopodentatus had a downturned snout and was a filter feeder. But new skulls in 2016 showed it actually had a hammerhead.1

Atopodentatus lived in shallow seas near the coast, where algae grew on rocks. It probably could walk on land or mudflats.1

Atopodentatus: AAk egindako irudia — Atopodentatus 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

Atopodentatus: gehien egindako galderak

?What did Atopodentatus eat?

Atopodentatus ate algae, scraping it off rocks with its chisel-shaped front teeth and filtering the bits with needle-like teeth in the back of its mouth.1 2

?How big was Atopodentatus?

Atopodentatus was about 2.75 meters (9 feet) long, roughly the size of a large dog.1

?Was Atopodentatus a dinosaur?

No, Atopodentatus was a marine reptile called a sauropterygian, not a dinosaur. It lived in the sea, not on land.1

?Why did Atopodentatus have a hammer-shaped head?

The hammer-shaped head helped Atopodentatus scrape algae off the seabed. Its wide jaws had chisel-like teeth for scraping, and the shape was unique among marine reptiles.2 1

?When did Atopodentatus live?

Atopodentatus lived about 247 to 240 million years ago, during the Middle Triassic period, about 6 million years after the Permian extinction.1

?Could Atopodentatus walk on land?

Scientists think Atopodentatus was semi-aquatic and could probably walk on land or mudflats, based on its body structure.1

Mito-hauslea

Mitoa: Atopodentatus was a filter feeder that sucked up small animals from the seafloor.

Egia: New fossils show it had a hammer-shaped head and used its front teeth to scrape algae, then filtered the plant bits through its back teeth. It was a plant eater.2

Dino adituentzat

Izen zientifikoa: Atopodentatus
Izendatzailea:: Cheng et al. 20143
Taldea: Itsas narrastiak
Familia / klada: Sauropterygia3
Sailkapena: Sauropterygia3
Arroken adina: 244 eta 243 milioi urte artean ()3
Arroka-formazioak: Guanling3
Herrialdeak: Txina3
Fosil-erregistroak: 2 The Paleobiology Database datu-basean3
Aurkikuntza: The first fossil of Atopodentatus was found near Daaozi village in Yunnan, China. Scientists named it in 2014. The name means 'unusual tooth' because of its strange teeth.1
Oraindik eztabaidagai: Scientists are not sure exactly how Atopodentatus is related to other marine reptiles. It is considered a strange type of sauropterygian.2

Datuak nondik datozen

Atopodentatus (en.wikipedia.org)
The earliest herbivorous marine reptile and its remarkable jaw apparatus | Science Advances (science.org)
Atopodentatus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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