Kartu dino No. 1552 ci 2 027

Rikisaurus

Tur bi mooy: “Riki's lizard”3

Lekkoon: YàppMosasoor yiKretase bu mujjCi xam-xam, du dinosoor

Rikisaurus was a marine lizard that swam in the warm seas near New Zealand about 80 million years ago. It was a mosasaur, a relative of today's monitor lizards, but with flippers instead of legs. This predator hunted fish and other sea creatures with its long, pointed snout and many small teeth.3 1

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 84 ba 66 milyoŋ at3

Kretase bu mujj

Fosil yu ñu gis ci

Mangahouanga Stream, Hawke's Bay, North Island, New Zealand3 1

Guddaay

2 ba 3 m (6,6 ba 9,8 ft)1

Gaawaay bi gën a kawe

lu tollu ci 33 km/h (21 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 17 banaana yu ñu topp-toppalemënoon na féey guddaayu pisin bu mag (50 m) ci 5,5 segond

Naka la Rikisaurus 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)

Rikisaurus lu tollu ci 33 km/h (21 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

Rikisaurus had a very long, slender snout that tapered to a point, and its upper jaw had 13 or 14 teeth on each side.1

Its teeth were small, with two ridges (bicarinate), and the enamel was smooth.1

The lower jaw had 15 or 16 teeth and deepened in the middle, giving it a semicircular bump (coronoid).1

Rikisaurus is known from only one fossil: a skull and four neck bones found in New Zealand.1

It lived between 83.6 and 66 million years ago, during the Campanian and Maastrichtian ages of the Late Cretaceous.1

Scientists think Rikisaurus was a small adult mosasaur, about the size of a modern dolphin.1

Nataalu Rikisaurus bu ñu def ak IA — Nataal bu IA def la, muy wone ni Rikisaurus 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 Rikisaurus

?Is Rikisaurus a dinosaur?

No, it is a mosasaur, a marine reptile related to today's monitor lizards, not a dinosaur.2 3

?How big was Rikisaurus?

It was a small adult mosasaur, about the size of a modern dolphin, though exact length is not given in the sources.3

?What did Rikisaurus eat?

It was a carnivore that hunted fish and other sea creatures with its long, pointed snout and many small teeth.3

?Where was Rikisaurus found?

Its only known fossil, a skull and four neck bones, was found in the Mangahouanga Stream in New Zealand.3

Ngir ñi xam dino lool

Turu xam-xam: Rikisaurus
Ku ko tudde: Wiffen 19903
Kurél: Mosasoor yi
Njaboot / klad: Mosasauridae3
Klasifikasiyoŋ: Mosasauroidea3
Màggaayu doj yi: 84 ba 66 milyoŋ at (Campanian / Maastrichtian)3
Formasiyoŋi doj: Tahora3
Réew yi: Nuwel Selaand3
Fosil yu ñu gis: 1 ci The Paleobiology Database3
Gisees: Rikisaurus was named by paleontologist J. Wiffen in 1990, based on a skull and neck bones found in the Tahora Formation of New Zealand.3 1
Ñu ngi koy werante ba tey: Scientists are not sure exactly how big Rikisaurus grew, because only one skull has been found.1

Fa xibaar yi jóge

PBDB Taxon (paleobiodb.org)
Moanasaurus (Wikipedia) (Wikipedia)
Rikisaurus in The Paleobiology Database (CC BY 4.0): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

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