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7 gru 2021 · Global sea levels were high during the Mesozoic period in which dinosaurs ruled the earth. While the animals that delighted our childhood like the Stegosaurus or the Tyrannosaurus rex roamed the land, the sea was also teeming with cool and unusual life.
13 lut 2019 · In fact, warm temperatures and dead zones (areas of water with depleted oxygen) are places where sea jellies thrive; and because their natural predators (sea turtles, fish and sharks) struggle in these changing environments, their numbers will only continue to grow.
The skull of a colossal sea monster has been extracted from the cliffs of Dorset's Jurassic Coast. It belongs to a pliosaur, a ferocious marine reptile that terrorised the oceans about 150...
The higher sea level during the Jurassic and Cenozoic created large areas of shallow seas where toothed fish, reptiles, birds, and flying pterosaurs stalked their prey. The first teleost fishes, fish with mobile jaws, evolved and their gaping, flexible mouths were effective for gulping prey.
These extinct sea creatures were cephalopods, making them relatives of today’s octopuses, squids and nautiluses. About 199 million years ago, during the Earth’s Jurassic Period, ammonites would have been found in abundance in shallow, tropical ocean waters.
See some of the most complete fossils of these prehistoric sea animals, including ichthyosaurs and plesiosaurs, and learn about the work of pioneering palaeontologist Mary Anning. Plus, look out for the skeleton cast of the giant ground sloth, a land mammal often mistaken for a dinosaur.
10 sty 2022 · A newly found fossil skeleton of a marine reptile called an ichthyosaur helps reveal the evolutionary history of one of the largest predators in the prehistoric ocean.
