Kartu dino No. 0191 ci 2 027

Atopodentatus

Tur bi mooy: “unusual tooth”1

Lekkoon: GàncaxReptil yu géejTriyaas bu digguCi xam-xam, du dinosoor

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

Xibaar bu neex: reptil bu géej bii dafa daan féey ci jamono yi dinosoor yi daan dox ci suuf. Ñépp dañu leen di wooye dino, waaye beneen caru reptil lañu woon.

Dundoon

am na 244 ba 243 milyoŋ at3

Triyaas bu diggu

Fosil yu ñu gis ci

Luoping County, Yunnan Province, China1

Guddaay

2,75 m (9 ft)1

Gaawaay bi gën a kawe

lu tollu ci 22 km/h (14 mph)

Féey, jortu

Kañ la dundoon?

Triyaas

Jurasik

Kretase

Am na 252 milyoŋ at20114566, asteroyid bi

Naka la réyoon?

Naka la guddoon?

gudd ni 3 xaj, bakkan ba geengudd ni 15 banaana yu ñu topp-toppalemënoon na féey guddaayu pisin bu mag (50 m) ci 8,2 segond

Naka la Atopodentatus réyoon, bu ñu ko méngalee ak YAW?

Ay kalkil rekk ci sa navigatëer. Dara du ñu denc, dara du ñu yónne fenn.

Naka la gaawoon?

Nit kuy dox lu tollu ci 5 km/h (3 mph)

Xale bu nekk ci welo lu tollu ci 12 km/h (7 mph)

Atopodentatus lu tollu ci 22 km/h (14 mph)

Fas buy daw bu gaaw lu tollu ci 65 km/h (40 mph)

Segg bu gaaw lu tollu ci 100 km/h (62 mph)

yëf yu neex

Xibaar yu neex

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

Nataalu Atopodentatus bu ñu def ak IA — Nataal bu IA def la, muy wone ni Atopodentatus mën a meloon, ordinatëer moo ko def ci li boroom xam-xam yi xam. Jortu kese la: rab bi ci dëgg mën na meloon neneen, te kenn xamul ay kulëëram yu dëgg.

yeen a laaj

Laaj yi ñu gën a laaj ci Atopodentatus

?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

Ku tas léeb yu dul dëgg

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

Dëgg: 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

Ngir ñi xam dino lool

Turu xam-xam: Atopodentatus
Ku ko tudde: Cheng et al. 20143
Kurél: Reptil yu géej
Njaboot / klad: Sauropterygia3
Klasifikasiyoŋ: Sauropterygia3
Màggaayu doj yi: 244 ba 243 milyoŋ at ()3
Formasiyoŋi doj: Guanling3
Réew yi: Siin3
Fosil yu ñu gis: 2 ci The Paleobiology Database3
Gisees: 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
Ñu ngi koy werante ba tey: Scientists are not sure exactly how Atopodentatus is related to other marine reptiles. It is considered a strange type of sauropterygian.2

Fa xibaar yi jóge

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): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

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