What is the difference between ichthyosaur and ichthyosaur?
is that ichthyosaur is any of several extinct fishlike reptiles, of the order ichthyosauria , that had a body somewhat like a porpoise while ichthyosaurus is any of various extinct fishlike marine reptiles of the order ichthyosauria of the triassic period to the cretaceous period.
Why is ichthyosaur not a fish?
Although they superficially have a similar shape and they exploit similar environmental niches, we know that ichthyosaurs are reptiles and thus they are not dolphins (mammals) nor sharks (fish).
Why do ichthyosaurus look like dolphins?
During the Early Triassic epoch, ichthyosaurs evolved from a group of unidentified land reptiles that returned to the sea, in a development similar to how the mammalian land-dwelling ancestors of modern-day dolphins and whales returned to the sea millions of years later, which they gradually came to resemble in a case …
Is ichthyosaurus a fish?
Ichthyosaur, any member of an extinct group of aquatic reptiles, most of which were very similar to porpoises in appearance and habits. These distant relatives of lizards and snakes (lepidosaurs) were the most highly specialized aquatic reptiles, but ichthyosaurs were not dinosaurs.
Does the ichthyosaur still exist?
These remains were named in 2004 as a new species in the genus, called Shastasaurus sikanniensis. Fully grown, these massive ichthyosaurs stretched 21 meters in total length, and are the only extinct marine reptiles that come close to matching the largest modern whales in size.
Who found the first ichthyosaur?
Mary Anning
Mary Anning has been credited with the first discovery of ichthyosaur fossils. Although this is not entirely true, she did help to discover the first specimen of Ichthyosaurus to be known by the scientific community of London.
What is the largest creature in history?
blue whale
Far bigger than any dinosaur, the blue whale is the largest known animal to have ever lived. An adult blue whale can grow to a massive 30m long and weigh more than 180,000kg – that’s about the same as 40 elephants, 30 Tyrannosaurus Rex or 2,670 average-sized men.
What was bigger than the megalodon?
Megalodon was also far bigger than the great white shark, which would only be around half of Megalodon’s size. Megalodon has also been found to be far larger than the gigantic theropod dinosaurs such as Spinosaurus, T-Rex, as well as the large ocean going marine reptiles such as Basilosaurus, and Tylosaurus.
Is Ammonite true?
Ammonite is based on a true story, in the sense that Winslet’s character, Mary Anning, and Saoirse Ronan’s character, Charlotte Murchison, are both real people. Charlotte Murchison was a real-life geologist as well, and the wife of fellow geologist, Roderick Murchison (played by James McArdle in the film).
