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Stenopterygius
Stenopterygius was a fast-swimming marine reptile that lived in the Jurassic seas. It looked a bit like a dolphin but was actually an ichthyosaur, not a dinosaur. It had a long beak full of teeth and chased after fish and squid.1
Cando viviu?
Como era de grande?
Canto medía de longo?
tan longo coma 4 cans do fociño á cola🍌tan longo coma 22 plátanos postos un tras outro🏊podería nadar o longo dunha piscina grande (50 m) en 3,8 segundosComo era de grande Stenopterygius comparado CONTIGO?
Só son contas no teu navegador. Non se garda nin se envía nada.
Que velocidade alcanzaba?
Datos curiosos
Stenopterygius had a small skull and narrow flippers compared to its relative Ichthyosaurus.1
One well-preserved fossil shows traces of skin, revealing that Stenopterygius was countershaded: darker on the back and lighter on the belly.1
Fossils of Stenopterygius often contain the remains of its last meal in the stomach area.1
The tail ended in a large, semicircular, leathery vertical fin, and it also had a triangular dorsal fin on its back.1
Stenopterygius lived during the Early and Middle Jurassic, about 183 to 173 million years ago.1
The type specimen of Stenopterygius quadriscissus is a complete skeleton that even preserved a very large embryo inside.1
As preguntas máis frecuentes sobre Stenopterygius
?How big was Stenopterygius?
Stenopterygius was a medium sized ichthyosaur, with most species reaching about 3.5 metres long, while the largest, S. uniter, could exceed 4 metres.1
?What did Stenopterygius eat?
Stenopterygius hunted fish, cephalopods, and other animals in the open sea. Fossils often contain the remains of its last meal in the stomach area.1
?Was Stenopterygius a dinosaur?
No, Stenopterygius was an ichthyosaur, a marine reptile, not a dinosaur. It looked a bit like a dolphin but was actually a different group of reptiles.1
?Did Stenopterygius give birth to live young?
Yes, Stenopterygius gave birth to live young, and one famous fossil shows a mother that died in childbirth. It preferred tail-first births, like modern dolphins and whales.1
Para expertos en dinos
- Nome científico
- Stenopterygius
- Bautizado por
- Jaekel 19043
- Grupo
- Ictiosauros
- Familia / clado
- Thunnosauria3
- Clasificación
- Ichthyosauria > Ichthyosauromorpha3
- Idade das rochas
- de 184 a 171 millóns de anos (Toarcian / Aalenian)3
- Formacións rochosas
- Posidonia Shale, Opalinuston, Beacon Limstone3
- Países
- Alemaña, Reino Unido, Luxemburgo, Francia3
- Rexistros fósiles
- 47 na Paleobiology Database3
- Descubrimento
- The species was first named as Ichthyosaurus quadriscissus by Quenstedt in 1856. Otto Jaekel gave it its own genus, Stenopterygius, in 1904.1
- Aínda en debate
- Scientists are still debating exactly how many species of Stenopterygius existed, because the fossils are often incomplete.2
De onde veñen os datos
- Stenopterygius (en.wikipedia.org)
- First Diagnostic Marine Reptile Remains from the Aalenian (Middle Jurassic): A New Ichthyosaur from Southwestern Germany | PLOS One (journals.plos.org)
- Stenopterygius 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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