How long was the Cretaceous Period? Answer and Explanation:1 The Cretaceous Period is one segment of the Mesozoic Era in the geologic time scale. The other periods in the Mesozoic Era are the Jurassic and... Learn more about this topic: ...
How long did the Ordovician period last?Question:How long did the Ordovician period last?Answer and Explanation: The Ordovician period is one of the divisions of Paleozoic Era, which is one of the major divisions of the geologic history of the Earth. The word...Become...
The making of Gondwana was a long process, most likely through three major mountain building events driven by the movement of Earth's tectonic plates. "During the interval from about 650 to 550 million years ago, various pieces of Africa and South America collided along an ancient mountain chai...
The absence of quill barbs doesn't prove that an animal was featherless, and feathers decompose long before bone turns fossil. However, fossils discovered in China have feather impressions in the surrounding rocks. All this evidence suggests that, in terms of appearance, dinosaurs had some avian ...
These ancient trees persisted for nearly 200 million years until they all but vanished. Now they line city streets.
From massive, long-necked sauropods to swift and cunning predators like Tyrannosaurus rex, each one sparks our imaginations and deepens our understanding of the incredible creatures that once ruled the prehistoric world. But how did they get so big? And what was their demise? In this article, ...
Skeleton: It possessed a combination of reptilian features, such as teeth and a long bony tail, and avian features, such as a wishbone and lightweight bones. Flight Capability: While not a strong flier by modern standards, Archaeopteryx likely had the ability to glide and make short powered ...
Early pterosaurs — informally called "pterodactyls"— had long tails with thin, leaf-shaped flaps of tissue on the end called vanes. This vane would have compromised their flight if it were floppy and fluttered like a flag, so paleontologists knew it was stiff, but they didn...
How long ago did the Triassic Period end?Triassic Period:The Triassic period marked the beginning of the Mesozoic era, and belong to the Phanerozoic eon. The Triassic period can be divided into three epochs: the lower/early, middle, and upper/late epochs. Each epoch can also be divided ...
How long was the Triassic-Jurassic mass extinction? What dominated life before the Permian extinction? What kind of new organisms evolved after the Triassic extinction? Did dinosaurs go extinct in the Permian or Cretaceous period? How were the Jurassic and Cretaceous different?