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Hace 1 día · Allosaurus (/ ˌ æ l ə ˈ s ɔːr ə s /) is an extinct genus of large carnosaurian theropod dinosaur that lived 155 to 145 million years ago during the Late Jurassic period (Kimmeridgian to late Tithonian ages).The name "Allosaurus" means "different lizard", alluding to its unique (at the time of its discovery) concave vertebrae.It is derived from the Greek words ἄλλος (allos ...
Hace 2 días · The Cretaceous (IPA: / k r ɪ ˈ t eɪ ʃ ə s / krih-TAY-shəs) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest.At around 79 million years, it is the longest geological period of the entire Phanerozoic.The name is derived from the Latin creta, "chalk", which is abundant in the latter ...
Hace 4 días · Megalodon teeth have been excavated and used since ancient times. They were a valued artifact amongst pre-Columbian cultures in the Americas for their large sizes and serrated blades, from which they were modified into projectile points, knives, jewelry, and funeral accessories. At least some, such as the Panamanian Sitio Conte societies, seemed to have used them primarily for ceremonial purposes.
Hace 6 días · Supporters. Boneyard Pets 3D dinosaur skeleton puzzle toys 0; CollectA CollectA produce a wide range of dinosaur and other prehistoric animal toys in a range of scales 0; Dan's Dinosaurs Dan has a wide range of figures available. He has also written several DTB reviews. 0; Happy Hen Toys A highly recommended online toy store featuring a wide variety of Papo, Schleich, Safari Ltd., CollectA ...
Hace 1 día · The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years.. The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and ...
Hace 4 días · Squamata (/ s k w æ ˈ m eɪ t ə /, Latin squamatus, 'scaly, having scales') is the largest order of reptiles, comprising lizards and snakes.With over 12162 Species, it is also the second-largest order of extant (living) vertebrates, after the perciform fish. Squamates are distinguished by their skins, which bear horny scales or shields, and must periodically engage in molting.
Hace 6 días · AMA Style. Ye R, Li W, Huo D, Zhao J, Huang X, He J, Chen F. Compositional Diversity of Early Mesozoic Granites in South Qinling: Derivation from Heterogenous Basement Rocks in the Orogenic Belt.
