Carta da dino nr. 1552 da 2 027

Rikisaurus

Il num vul dir: “Riki's lizard”3

Mangiava: CharnMosasaursCretacic tardivTecnicamain betg in dinosaur

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

Fatg divertent: quest reptil da mar nudava, entant ch'ils dinosaurs chaminavan sin terra. Tuts als numnan dinos, ma els eran in'autra rama dals reptils.

Viveva

avant 84 fin 66 milliuns onns3

Cretacic tardiv

Fossils chattads en

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

Lunghezza

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

Spertadad maximala

var 33 km/h (21 mph)

Nudar, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

uschè lung sco 3 chauns dal nas a la cuauschè lung sco 17 bananas ina suenter l'autrapudess nudar la lunghezza d'ina gronda piscina (50 m) en 5,5 secundas

Quant grond era Rikisaurus cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Rikisaurus var 33 km/h (21 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Rikisaurus fatg cun IA — In maletg fatg cun IA che mussa co Rikisaurus pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart 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

Per experts da dinos

Num scientific: Rikisaurus
Numnà da: Wiffen 19903
Gruppa: Mosasaurs
Famiglia / clada: Mosasauridae3
Classificaziun: Mosasauroidea3
Vegliadetgna da la crappa: 84 fin 66 milliuns onns (Campanian / Maastrichtian)3
Formaziuns da crap: Tahora3
Pajais: Nova Zelanda3
Chats da fossils: 1 en The Paleobiology Database3
Scuverta: 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
Anc discutà: Scientists are not sure exactly how big Rikisaurus grew, because only one skull has been found.1

Danunder che vegnan ils fatgs

PBDB Taxon (paleobiodb.org)
Moanasaurus (Wikipedia) (Wikipedia)
Rikisaurus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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