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The Cretaceous (IPA: / k r ɪ ˈ t eɪ ʃ ə s / krih-TAY-shəss) [2] is a geological period that lasted from about 143.1 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 77 million years, it is the ninth and longest geological period of the entire Phanerozoic.
A map of Earth as it appeared 85 million years ago during the Late Cretaceous Epoch, Santonian Age ... −80 — – −70 — – ... Millions of years ago. Etymology;
Zealandia followed suit—roughly 80 million years ago, according to the latest theory. But unlike neighboring Australia or much of Antarctica, Zealandia largely sunk, ...
Earth formed in this manner about 4.54 billion years ago (with an uncertainty of 1%) [25] [26] [4] and was largely completed within 10–20 million years. [27] In June 2023, scientists reported evidence that the planet Earth may have formed in just three million years, much faster than the 10−100 million years thought earlier.
Most species of Ptychodus lived between 100 and 80 million years ago during the late Cretaceous period. The deposits in which the fossils were discovered — in Nuevo León near the municipality ...
The eggs date back more than 80 million years ago, making it a part of the Late Cretaceous period (66 to 100.5 million years ago). ... (100.5 to 145 million years ago). For a comparison, most ...
The Laramide orogeny was a time period of mountain building in western North America, which started in the Late Cretaceous, 80 to 70 million years ago, and ended 55 to 35 million years ago. The exact duration and ages of beginning and end of the orogeny are in dispute.
The place is called Sossusvlei in Namib-Naukluft National Park in the middle of what researchers consider the world’s oldest desert — formed between 55 and 80 million years ago when dinosaurs ...