Late Jurassic - Wikipedia
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata. [2] In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. [3]
Dinosaurs from the Late Jurassic Period - Natural History Museum
Explore dinosaurs from the Late Jurassic in the Natural History Museum Dino Directory.
Late Jurassic - The Malm Epoch - Palaeos
2002年4月9日 · The late Jurassic period sees the evolution of some of the greatest dinosaurs of all. The sauropods continue to flourish and to diversify, as the older Mid-Jurassic cetiosaurids are replaced by a diverse Late Jurassic fauna of camarasaurs , Brachiosaurs , and diplodocids .
Jurassic Period | Climate, Plants, Animals, & Facts | Britannica
2024年11月27日 · Extending from 201.3 million to 145 million years ago, the Jurassic was a time of global change in the continents, oceanographic patterns, and biological systems. On land, dinosaurs and flying pterosaurs dominated, and birds made their first appearance.
Jurassic - Wikipedia
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 Jurassic constitutes the middle period of the Mesozoic Era as well as the eighth period of the Phanerozoic Eon and is named after the Jura ...
The Jurassic Period: How did dinosaurs go from basal to bulky?
Archaeopteryx, sometimes known as the first bird, is a Late Jurassic dinosaur. But Susie notes that there’s a growing body of evidence that suggests birds may actually have been around much earlier.
Jurassic Period - Geology, Fossils, Climate | Britannica
2024年11月27日 · The Jurassic Period is divided into three epochs: Early Jurassic (201.3 million to 174.1 million years ago), Middle Jurassic (174.1 million to 163.5 million years ago), and Late Jurassic (163.5 million to 145 million years ago).
Jurassic Dinosaurs - U.S. National Park Service
2023年5月30日 · By the Late Jurassic, conditions were right to preserve large numbers of dinosaur fossils in a rock unit called the Morrison Formation. Many of the most famous dinosaurs of North America are from the Morrison Formation, such as Allosaurus, Apatosaurus, Brontosaurus, Diplodocus, and Stegosaurus.
Late Jurassic Epoch | geochronology | Britannica
Triconodon, genus of extinct mammals found in European deposits of the late Jurassic Period (about 161 million–146 million years ago). Triconodon is representative of the triconodonts, known from fossils throughout North America, Europe, Africa, and China.
Jurassic Period—201.3 to 145.0 MYA - U.S. National Park Service
Most paleontologists are convinced that birds evolved from dinosaurs, in particular from theropods. This well-substantiated scientific idea was born with the discovery of a 150-million-year-old (Late Jurassic) fossil bird, Archaeopteryx, which was first described by Richard Owen in 1863 (Owen 1863). The fossil has the skull, teeth, and bony ...