Is Kronosaurus still valid?
Kronosaurus (/ˌkrɒnoʊˈsɔːrəs/ KRON-oh-SOR-əs; meaning “lizard of Kronos”) is a potentially dubious genus of extinct short-necked pliosaur. With an estimated length of 9 to 10.9 meters (30 to 36 ft), it was among the largest pliosaurs, and is named after the leader of the Greek Titans, Kronos.
Is the Kronosaurus real?
Kronosaurus fossils have been found in the rocks deposited by the inland seas and it ranges in age from 112-98 Million years, during the Early Cretaceous Period. Kronosaurus is a pliosaur, a short-necked marine reptile. It is though to have grown up to 11 metres in length, and its skull alone is nearly two metres long.
Why is Elasmosaurus not a dinosaur?
Like most of the so called ‘swimming dinosaurs’, Elasmosaurus wasn’t really a dinosaur at all! It was a reptile. It did breathe air. Their necks were so long they wouldn’t have been able to lift more than its head above the water.
Is Elasmosaurus extinct?
Elasmosaurus lived during the late Cretaceous period, and went extinct during the K-T mass extinction (65 million years ago). Elasmosaurus lived in the open oceans and breathed air.
Did Kronosaurus lay eggs?
They probably laid eggs in beach sand (like modern-day sea turtles). Kronosaurus may have laid eggs in nests that they dug into the sand, much as modern-day sea turtles do. Kronosaurus ate ammonites and other cephalopods. Fossilized plesiosaurs and turtles have been found in the stomach cavity of Kronosaurus.
When did the Kronosaurus go extinct?
around 80 million years ago
When did the Kronosaurus become extinct? The K. queenslandicus went extinct around 80 million years ago.
Is the Kronosaurus a dinosaur?
Kronosaurus was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs. The first Kronosaurus fossil was discovered in 1924.
Was Elasmosaurus real?
Elasmosaurus (/ɪˌlæzməˈsɔːrəs, -moʊ-/;) is a genus of plesiosaur that lived in North America during the Campanian stage of the Late Cretaceous period, about 80.5 million years ago.
Is a Elasmosaurus a dinosaur?
Elasmosaurus was a Late Cretaceous dinosaur that existed 80.5 million years ago and died 65 million years ago. Plated lizard is the name given to Elasmosaurus.
Did live birth or eggs come first?
Egg laying almost certainly came before live birth; the armored fish that inhabited the oceans half a billion years ago and were ancestral to all land vertebrates seem to have laid eggs.