Did ichthyosaurs live with dinosaurs?

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.

What is a ichthyosaur fossil?

Ichthyosaurs (Greek for “fish lizard” – ιχθυς or ichthys meaning “fish” and σαυρος or sauros meaning “lizard”) are large extinct marine reptiles. In 1834, the order Ichthyosauria was named. Later that century, many excellently preserved ichthyosaur fossils were discovered in Germany, including soft-tissue remains.

Are ichthyosaurs related to mosasaurus?

Mosasaurs (98–66 million years ago) are giant marine lizards that could reach 15 m in body length, whereas ichthyosaurs (250–94 million years ago) could become even larger. Both ichthyosaurs and mosasaurs died out during the Cretaceous Period, but leatherback turtles are still around today.

Where are ichthyosaur fossils found?

For more than a century, people have found ichthyosaur fossils with traces of soft tissue, a consequence of the animals’ deep-sea burials in low-oxygen sediments. The best-known of these fossils come from the shale quarries of Holzmaden, Germany.

Why are ichthyosaurs dinosaurs?

Ichthyosaurs were not dinosaurs, but represent a separate group of marine vertebrates. Because ichthyosaurs were so specialized and modified for life in the ocean, we don’t really know which group of vertebrates were their closest relatives.

What was the biggest fossil ever found?

Fossils of oldest titanosaur discovered in Argentina Titanosaurs are a group of dinosaurs that may have been the largest animals ever to walk the Earth. “It is the oldest record known, not only from Argentina but worldwide.” The new discovery meant titanosaurs lived longer ago than previously thought.

Are there any new ichthyosaurs in the UK?

A new ophthalmosaurid ichthyosaur, Thalassodraco etchesi gen. et sp. nov., from the Upper Jurassic Kimmeridge Clay Formation of Dorset, UK is described.

Where was an ophthalmosaurid skull and thorax found?

The specimen, a partial, articulated skull and anterior thorax in the Etches Collection of Kimmeridge, Dorset, is exceptionally well preserved on a slab of laminated coccolith limestone and has been expertly prepared.

How big was the Ophthalmosaurus eye lizard?

Ophthalmosaurus. Ophthalmosaurus (meaning “eye lizard” in Greek) is an ichthyosaur of the Middle Jurassic period (165-160 million years ago), named for its extremely large eyes. It had a graceful 6 m (19.5 ft) long dolphin-shaped body, and its almost toothless jaw was well adapted for catching squid.

Is the Ophthalmosaurus part of the genus Arthropterygius?

Ophthalmosaurus chrisorum Russell, 1993 was moved to its own genus Arthropterygius in 2010 by Maxwell. On the other hand, Paraophthalmosaurus and Yasykovia are apparently valid and distinct from Ophthalmosaurus.