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Elasmosaurus

O nome significa: “thin-plate reptile”1

Comía: CarnePlesiosaurosCretáceo SuperiorTecnicamente non é un dinosauro

Elasmosaurus was a giant marine reptile with an incredibly long neck, longer than a school bus! It swam in the ancient sea that once covered the middle of North America, using its four flippers to paddle through the water.1

Dato curioso: este réptil mariño nadaba mentres os dinosauros camiñaban por terra. Todo o mundo lles chama dinos, pero eran outra rama dos réptiles.

Viviu

hai entre 94 e 72 millóns de anos4

Cretáceo Superior

Fósiles atopados en

Kansas and Wyoming, USA, and Hokkaido, Japan4 1

Lonxitude

10,3 m (34 ft)1

Velocidade máxima

uns 22 km/h (14 mph)

Nadar, estimación

Cando viviu?

Triásico

Xurásico

Cretáceo

Hai 252 millóns de anos20114566, o asteroide

Como era de grande?

Canto medía de longo?

tan longo coma 2,5 coches aparcados en filatan longo coma 57 plátanos postos un tras outropodería nadar o longo dunha piscina grande (50 m) en 8,2 segundos

Como era de grande Elasmosaurus comparado CONTIGO?

Só son contas no teu navegador. Non se garda nin se envía nada.

Que velocidade alcanzaba?

Unha persoa camiñando uns 5 km/h (3 mph)

Un neno en bici uns 12 km/h (7 mph)

Elasmosaurus uns 22 km/h (14 mph)

Un cabalo ao galope uns 65 km/h (40 mph)

Un guepardo uns 100 km/h (62 mph)

cousas xeniais

Datos curiosos

Elasmosaurus had 72 bones in its neck, which was about 7.1 meters (23 feet) long, making it one of the longest-necked animals ever.1

The first Elasmosaurus fossil was found in 1867 near Fort Wallace, Kansas, by a military doctor named Theophilus Turner.1

The scientist who named Elasmosaurus, Edward Drinker Cope, made a famous mistake: he put the skull on the tail end of the skeleton!1

Elasmosaurus lived about 80.6 to 77 million years ago, during the Late Cretaceous Period, in a shallow sea called the Western Interior Seaway.1

Despite its long neck, Elasmosaurus could not lift its head high above the water like a swan; its neck was not very flexible.1

Elasmosaurus may have used stomach stones, called gastroliths, to help grind up food in its belly.1

The name Elasmosaurus means 'thin-plate reptile', referring to the flat bones in its chest and hips.1

Imaxe de Elasmosaurus feita con IA — Unha imaxe feita con IA de como podería ser Elasmosaurus, creada por un ordenador a partir do que saben os científicos. É unha suposición: o animal real podía ser diferente, e ninguén sabe as súas cores de verdade.

ti preguntaches

As preguntas máis frecuentes sobre Elasmosaurus

?How big was Elasmosaurus?

Elasmosaurus was about 10.3 meters (34 feet) long, with its neck alone around 7.1 meters (23 feet). That is longer than a school bus.1

?What did Elasmosaurus eat?

Elasmosaurus probably ate small fish and marine invertebrates, seizing them with its long teeth. It may have used stomach stones to help digest its food.1 2

?Was Elasmosaurus a dinosaur?

No, Elasmosaurus was a plesiosaur, a marine reptile that lived in the sea. It was not a dinosaur, though it lived during the time of dinosaurs.1 3

?Could Elasmosaurus lift its neck out of water?

No, Elasmosaurus could not raise its head and neck high above the water like a swan. Its neck was too heavy and not flexible enough, so it could only lift its head above water in very shallow water.1

?How many neck bones did Elasmosaurus have?

Elasmosaurus had 72 neck vertebrae, which is the second largest number known in any animal. Its relative Albertonectes had even more, with at least 75.1

?Where did Elasmosaurus live?

Elasmosaurus lived in the Western Interior Seaway, a shallow sea that covered the middle of North America about 80.6 to 77 million years ago. Its fossils have been found in Kansas, USA.1

?Why did Elasmosaurus have such a long neck?

Scientists are not sure why Elasmosaurus had such a long neck. It may have helped in feeding, perhaps by sneaking up on prey, but the exact reason is unknown.1 2

?What was Cope's mistake with Elasmosaurus?

Edward Drinker Cope, who named Elasmosaurus, mistakenly put the skull on the tail end of the skeleton in his reconstruction. This famous error was pointed out by his rival Othniel Charles Marsh.1

Cazamitos

Mito: Many people think Elasmosaurus could hold its neck high out of the water like a giraffe.

Verdade: Scientists now know its neck was not flexible enough to lift high; it probably kept its neck low in the water while swimming.1

Para expertos en dinos

Nome científico: Elasmosaurus
Bautizado por: Cope 18684
Grupo: Plesiosauros
Familia / clado: Elasmosauridae4
Clasificación: Plesiosauria > Elasmosauridae > Sauropterygia4
Idade das rochas: de 94 a 72 millóns de anos (Turonian / Campanian)4
Formacións rochosas: Pierre Shale4
Países: Xapón, EUA4
Rexistros fósiles: 9 na Paleobiology Database4
Descubrimento: Elasmosaurus was named in 1868 by American paleontologist Edward Drinker Cope, based on a partial skeleton found in Kansas. The fossil was dug out of shale and shipped to Philadelphia in crates.1
Aínda en debate: Scientists are still not sure exactly what Elasmosaurus used its extremely long neck for, though it may have helped it catch prey on the seafloor or surprise fish.1

De onde veñen os datos

Elasmosaurus (en.wikipedia.org)
BBC - Science & Nature - Sea Monsters - Fact File: Elasmosaurus (bbc.co.uk)
Fossil Focus: Elasmosaurs – PALAEONTOLOGY[online] (palaeontologyonline.com)
Elasmosaurus in The Paleobiology Database (CC BY 4.0): idade, lugares, formacións rochosas, clasificación.

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