Megalneusaurus
Megalneusaurus was a giant marine reptile that swam in the shallow Sundance Sea during the Late Jurassic. It was one of the biggest predators in North America at that time, with four flippers and a big head.1
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Megalneusaurus was one of the largest pliosaurs in North America, measuring about 7 to 9 meters (23 to 30 feet) long.1
Its back flippers were bigger than its front flippers, which is unusual for plesiosaurs.1
It lived in the Sundance Sea, a shallow sea that covered parts of North America during the Jurassic.1
Scientists think it was an ambush predator, waiting to surprise its prey.1
A specimen from Alaska suggests it could also live in colder waters.1

Mibvunzo inonyanya kubvunzwa nezve Megalneusaurus
?How big was Megalneusaurus?
Megalneusaurus was about 7 to 9 meters (23 to 30 feet) long. Some estimates say it could reach around 13 meters (43 feet).1
?What did Megalneusaurus eat?
It ate squid-like animals and fish, based on hooklets and fish bones found in its stomach. It may also have eaten other plesiosaurs.12
?Could Megalneusaurus live in cold water?
Yes. A specimen found in Alaska shows it could live in colder waters, where there were fewer animals.1
?Was Megalneusaurus a dinosaur?
No, it was a marine reptile called a pliosaur, not a dinosaur. It lived in the sea.1
Mubvisi wengano
Ngano: Some people think Megalneusaurus was a dinosaur.
Chokwadi: It was a plesiosaur, a marine reptile, not a dinosaur.1
Zvevanyanzvi vemadhino
- Zita resainzi
- Megalneusaurus
- Akaripa zita:
- Knight 18983
- Boka
- Mapresiosauro
- Mhuri / boka
- Plesiosauria3
- Kurongwa kwemhuka
- Plesiosauria > Sauropterygia3
- Zera rematombo
- makore mamiriyoni 162 kusvika 155 (Oxfordian)3
- Mapoka ematombo
- Sundance3
- Nyika
- Amerika3
- Zvinyorwa zvemafosiri
- 1 mu The Paleobiology Database3
- Kuwanikwa
- Wilbur Clinton Knight found and described the first fossils in 1895, near Ervay, Wyoming. He first called it Cimoliosaurus rex, then gave it its own genus name in 1898.12
- Zvichiri kupokanwa
- Scientists debate whether Megalneusaurus is a valid genus because many of the original fossils were lost.1
Kunobva chokwadi
- Megalneusaurus (en.wikipedia.org)
- REDISCOVERY OF WILBUR KNIGHT’S MEGALNEUSAURUS REX SITE: NEW MATERIAL FROM AN OLD PIT (wyomingdinosaurcenter.org)
- Megalneusaurus in The Paleobiology Database (CC BY 4.0): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.
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