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TOPIC: Ancient Marine Reptiles
Blobrana


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RE: Ancient Marine Reptiles
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Prehistoric Marine Reptile Discovered by Field Museum Scientists

When most people get tired and worn out they take naps. Field Museum scientist Jim Holstein however, discovers fossils.
On a fossil dig in Nevada, Holstein stumbled upon the fossil bones of a Thalattoarchon saurophagis, or "lizard-eating ruler of the seas," on a slow walk back to his base camp.
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Blobrana


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Freshwater Reptile
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First freshwater 'gigantic marine lizard' discovered

Scientists have discovered a huge aquatic lizard in Hungary that 'terrorised' European rivers 84-million-years ago.
A new mosasaur species discovered in Hungary is the first known example of this group of scaled reptiles to have lived in freshwater river environments similar to modern freshwater dolphins, researchers said.
They were the biggest and most dangerous predators in the water and occupied a similar niche to freshwater dolphins of today.
The new species probably adapted to freshwater environments similarly to river dolphins, such as those now inhabiting the Amazon, Ganges and Yangtze rivers.
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Blobrana


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Pliosaurus funkei
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Paleontologists demystify most fearsome monster

Predator X, a gigantic, big-headed marine reptile 50-foot long and hailed as the most fearsome prehistoric creature, has finally been named and described, while the hype overshadowed the facts.
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Blobrana


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RE: Ancient Marine Reptiles
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Triassic turtle fossil discovered in Poland

Scientists have discovered a rare early turtle fossil in a landfill site in Poland, possibly dating back to the late Triassic period around 215 million years ago.
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Blobrana


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ichthyosaurus
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'Dinosaur bends' caused by prolonged diving.

A recent study identified bone deformities on the fossilized remains of Ichthyosarians, which were giant dolphin-like reptiles that first appeared about 245 million years ago.
The lesions were similar to those human divers develop as a result of changes in body pressure, and suggest the reptiles suffered from a version of 'the bends'.
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Blobrana


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RE: Ancient Marine Reptiles
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Turtles killed as they were having sex and then fossilised in position have been described by scientists.
The remains of the 47-million-yearold animals were unearthed in the famous Messel Pit near Darmstadt, Germany.
They were found as male-female pairs. In two cases, the males even had their tails tucked under their partners' as would be expected from the coital position.
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Blobrana


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Carbonemys cofrinii
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 Ancient Giant Turtle Fossil Revealed

Picture a turtle the size of a Smart car, with a shell large enough to double as a kiddie pool. Palaeontologists from North Carolina State University have found just such a specimen - the fossilised remains of a 60-million-year-old South American giant that lived in what is now Colombia.
The turtle in question is Carbonemys cofrinii, which means "coal turtle," and is part of a group of side-necked turtles known as pelomedusoides. The fossil was named Carbonemys because it was discovered in 2005 in a coal mine that was part of northern Colombia's Cerrejon formation.
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Blobrana


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Polysternon isonae
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New species of turtle that lived with dinosaurs found in Spain

Researchers have discovered and described a new species of turtle from the end of the age of dinosaurs.
They have named this new species as Polysternon isonae, in recognition of the municipality of Isona I Conca Della (Catalonia, Spain), where the fossil remains of the specimen type have been found.
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Blobrana


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Mosasaurs
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Fossilised Skin Reveals Ancient Predator's Sharklike Moves

More than 80 million years ago, a giant reptile called a mosasaur likely glided gracefully through the water with the help of tiny scales covering its tough skin, and a powerful tail to boot, suggests the soft-tissue remains of one such aquatic beast.
The fossilised pieces of mosasaur skin, discovered in Kansas in the 1950s but not analysed thoroughly until now, give researchers a view of ancient lizard skin, inside and out. The marine animal's skin was pulled taut around the upper end of its body, which would have restricted its swimming motion to the lower half, they found.
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Blobrana


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Plesiosaurs
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Ancient sea reptile gave birth, didn't lay eggs

The remains of a giant sea creature are providing the first proof that these prehistoric reptiles gave birth to their young rather than laying eggs.
Plesiosaurs, which lived at the time of dinosaurs, were large carnivorous sea animals with broad bodies and two pairs of flippers. Researchers have long questioned whether they would have been able to crawl onto land and lay eggs like other reptiles or gave birth in the water like whales.
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