Cretaceous period

During the Ice Ages of the Quaternary Period, most of the land was covered with ice, and vegetation included mosses, sedges, shrubs, lichens and low-lying grasses. During warmer periods, most of the soil was not covered with ice, and woodlands and coniferous forests existed. The emergence of tropical rainforests occurred during the Holocene. This habitat allowed many animals and plants to thrive and evolve. Savannas also emerged where herbivores grazed and flourished.

The Cretaceous period of the Mesozoic era was the final and longest period. It occurred from 14.5 million years ago to 65.5 million years ago (Bagley). There was a minor mass extinction that marks …

Rocks gathered from the impact site provide a glimpse into the catastrophically destructive minutes and hours after the fateful strike.

An artist’s vision of Sauropods and Iguanodons during the late Jurassic. Image taken from Wikipedia Commons here. def. Jurassic: 1. A geologic period spanning from approximately 200 to 145 million years ago. 2. A cool adjective to use in everyday life to describe something or someone ancient and/or gargantuan. For example, “My Jurassic professor doesn’t even know how to use a computer. He does all of his lectures in chalk …

Tarbosaurus catching Deinocheirus juveniles off guard. Illustration created for book project by Mike Kelly, "Super Predator: The World Of Tyrannosaurus rex" .

Illustration of the aftermath of Cretaceous-Paleogene (K/Pg) impact event, the comet or asteroid that ended the Cretaceous Period, heralding the Palaeogene and the Cainozoic Era. Among the first plants to recover are the pteridophytes (ferns) and seedlings of trees.

The newly discovered Probrachylophosaurus bergei has been found in the Judith River Formation in north central Montana, and dated to around 80 million years ago.

Amazon.com: Larsen Puzzles Dinosaurs 65 Piece Children's Jigsaw Puzzle : Toys & Games

Illustration about Silhouettes of dinosaurs of cretaceous period of mesozoic era with names. Illustration of epoch, raptor, dinosaur - 77252036

The asteroid in question is widely believed to have slammed into Earth around 66 million years ago off the Yucatán Peninsula