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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.
The Tamu Massif was formed about 145 million years ago during the Late Jurassic to Early Cretaceous period [1] over a relatively short period of time (a few million years) and then became extinct. [1] Tamu Massif was formed during a single geologically brief eruptive period, which scientists had previously thought was impossible on Earth.
The Late Jurassic spans from 163 to 145 million years ago. [19] During this epoch, the first avialans, such as Archaeopteryx, evolved from small coelurosaurian dinosaurs. The increase in sea levels opened up the Atlantic seaway, which has grown continually larger until today.
The early Cretaceous period stretched from 100 to 145 million years ago. The fossilized dinosaur "trackways," as scientists call them, were first found in the 1980s by Italian priest and ...
A new analysis of three-toed fossil footprints that date back more than 210 million years reveals that they were created by bipedal reptiles with feet like a bird’s. ... (201.3 million to 145 ...
Camarasaurus (/ ˌ k æ m ər ə ˈ s ɔː r ə s / KAM-ər-ə-SOR-əs) was a genus of quadrupedal, herbivorous dinosaurs and is the most common North American sauropod fossil. Its fossil remains have been found in the Morrison Formation, dating to the Late Jurassic epoch (Kimmeridgian to Tithonian stages), between 155 and 145 million years ago.
The Jurassic (/ dʒ ʊ ˈ r æ s ɪ k / juurr-ASS-ik [2]) is a geologic period and stratigraphic system that spanned from the end of the Triassic Period 201.4 million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya.
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 ...