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ピンもと:Live Science

Caught in the Act: Ancient Armored Fish Downs Flying Reptile

Link to "Live Science" article... "An ancient armored fish was fossilized in the…

The Titanoboa - In the pantheon of predators, it's one of the greatest discoveries since the T-Rex: a snake 48 feet long, weighing in at 2,500 pounds. Uncovered from a treasure trove of fossils in a Colombian coal mine, this serpent is revealing a lost world of giant creatures. Travel back to the period following the extinction of dinosaurs and encounter this monster predator.

Akantharges sp. Erfoud, Morocco アカンタルゲス・未定種 新種(Akantharges sp. New)

ピンもと:Live Science

Images: Stingray Sex, Mini-Horses & Other Curiosities of Fossil Lake

From Fossil Lake, which was teeming with life during the early Eocene, about 52 million years ago. Only one frog has ever been found at the formation. The single specimen pictured here measures just 1.6 inches (4 cm) long.

Compsognathus fossil specimen

Ancient reptile birth preserved in fossil

psephoderma - Triassic (220 - 205 mln)

Fish that swallowed a pterosaur that swallowed a fish. Image: Eberhard Frey, Helmut Tischlinger/PLoS One.

Superorden恐竜類,国立博物館,動物,フリー百科事典,History Dinosauria,Dinosauria Saurischia,Rex National,D Un Tyrannosaurus,Bras D Un

ピンもと:Live Science

Image Gallery: Dinosaur Fossils

According to some scientists, this 220-million-year-old fossil, from the late Triassic era. offers evidence that dinosaurs were not ancestral to birds. An archosaur called Longisquama insignis, a small reptile roughly the size of a mouse, has ignited scientific controversy due to the six vane-like appendages attached to either side of Longisquama's back. Some researchers believe the appendages were non-avian feathers and that early archosaurs were the ancestors of modern birds.