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Rikisaurus
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.31
Cando viviu?
Como era de grande?
Canto medía de longo?
tan longo coma 3 cans do fociño á cola🍌tan longo coma 17 plátanos postos un tras outro🏊podería nadar o longo dunha piscina grande (50 m) en 5,5 segundosComo era de grande Rikisaurus comparado CONTIGO?
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Que velocidade alcanzaba?
Datos curiosos
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
As preguntas máis frecuentes sobre Rikisaurus
?Is Rikisaurus a dinosaur?
No, it is a mosasaur, a marine reptile related to today's monitor lizards, not a dinosaur.23
?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
Para expertos en dinos
- Nome científico
- Rikisaurus
- Bautizado por
- Wiffen 19903
- Grupo
- Mosasauros
- Familia / clado
- Mosasauridae3
- Clasificación
- Mosasauroidea3
- Idade das rochas
- de 84 a 66 millóns de anos (Campanian / Maastrichtian)3
- Formacións rochosas
- Tahora3
- Países
- Nova Zelandia3
- Rexistros fósiles
- 1 na Paleobiology Database3
- Descubrimento
- Rikisaurus was named by paleontologist J. Wiffen in 1990, based on a skull and neck bones found in the Tahora Formation of New Zealand.31
- Aínda en debate
- Scientists are not sure exactly how big Rikisaurus grew, because only one skull has been found.1
De onde veñen os datos
- PBDB Taxon (paleobiodb.org)
- Moanasaurus (Wikipedia) (Wikipedia)
- Rikisaurus in The Paleobiology Database (CC BY 4.0): idade, lugares, formacións rochosas, clasificación.
Cada dato desta páxina ten un número que leva á súa fonte. Se nos equivocamos nalgo, sentímolo, somos fans dos dinos, non unha revista científica. Escríbenos a [email protected] e arranxámolo.
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