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Há 1 dia · Spinosauridae (or spinosaurids) is a clade or family of tetanuran theropod dinosaurs comprising ten to seventeen known genera. Spinosaurid fossils have been recovered worldwide, including Africa, Europe, South America and Asia. Their remains have generally been attributed to the Early to Mid Cretaceous . Spinosaurids were large bipedal carnivores.
- List of dinosaur genera
Aerosteon. Aetonyx – junior synonym of Massospondylus....
- List of dinosaurs
List of dinosaurs. The following is a list of dinosaurs....
- List of dinosaur genera
Há 3 dias · Among the best-known sauropods, Diplodocus were very large, long-necked, quadrupedal animals, with long, whip-like tails. Their forelimbs were slightly shorter than their hind limbs, resulting in a largely horizontal posture. The skeletal structure of these long-necked, long-tailed animals supported by four sturdy legs have been compared with ...
Há 6 dias · Tyrannosauroidea (meaning 'tyrant lizard forms') is a superfamily (or clade) of coelurosaurian theropod dinosaurs that includes the family Tyrannosauridae as well as more basal relatives. Tyrannosauroids lived on the Laurasian supercontinent beginning in the Jurassic Period.
16 de mai. de 2024 · Dinosaur, the common name given to a group of reptiles, often very large, that first appeared roughly 245 million years ago and thrived worldwide for nearly 180 million years. Most died out by the end of the Cretaceous Period. Many lines of evidence show that one lineage evolved into birds about 155 million years ago.
- Dinosaurs are a diverse group of reptiles that were the dominant terrestrial life form on Earth during the Mesozoic Era, about 245 million years ag...
- The decline of dinosaurs was most likely caused by many different factors. A popular theory is that an asteroid crashed into the Yucatán Peninsula...
- Some species of dinosaurs, such as the dromaeosaur, have fossil records of their feathers. Early feathers were not evolved for flight; instead, sci...
- It is generally accepted that modern birds are descendents of dinosaurs. Evidence for this theory first arose from the fossil records of the Archae...
- Although estimates vary, one of the contenders for the largest dinosaur is the Argentinosaurus. Discovered in Argentina in 1987, the Argentinosauru...
- Dinosaur fossils and tracks have been discovered throughout human history. The first description of dinosaurs as a separate group of life forms (kn...
Há 1 dia · Paleopathology. Paleoecology. References. External links. Allosaurus ( / ˌæləˈsɔːrəs /) [2] [3] 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 ).
