Search results
Results From The WOW.Com Content Network
A revision of the known material assigned to the genus Haplocanthosaurus is published by Boisvert et al. (2025). [42] Fossil material of lithostrotian titanosaurs assigned to two morphotypes, including caudal vertebrae preserved with rare pathological features, is described from the Upper Cretaceous Cambambe Basin by Lacerda et al. (2025). [43]
A study on the diversification of non-avian dinosaurs, inferred from available dinosaur phylogenies, is published by Allen et al. (2024), who find it impossible to decisively conclude whether dinosaurs experienced a decline in diversity before the Cretaceous–Paleogene extinction event on the basis of available data, noting the impact of the ...
The smallest known non-avialan dinosaurs were about the size of pigeons and were those theropods most closely related to birds. [160] For example, Anchiornis huxleyi is currently the smallest non-avialan dinosaur described from an adult specimen, with an estimated weight of 110 g (3.9 oz) [ 161 ] and a total skeletal length of 34 centimeters (1 ...
By Will Dunham. WASHINGTON (Reuters) - Dinosaurs long dominated Earth's land ecosystems with a multitude of forms including plant-eating giants like Argentinosaurus, meat-eating brutes like ...
The discovery, made public Wednesday, includes well-preserved footprints of reptiles and amphibians that scientists say date back 280 million years to a geologic period known as the Permian period.
The asteroid that killed most dinosaurs 66 million years ago left behind traces of its own origin. Researchers think they know where the Chicxulub impactor came from based on levels of ruthenium.
Probable tracks of large sauropodomorphs dinosaurs, potentially representing the largest known tracks belonging to the ichnogenus Eosauropus reported to date, are described from the Upper Triassic (likely Rhaetian) Blue Anchor Formation (Penarth, south Wales, United Kingdom) by Falkingham et al. (2021). [218]
Fossils may be found either associated with a geological formation or at a single geographic site. Geological formations consist of rock that was deposited during a specific period of time. They usually extend for large areas, and sometimes there are different important sites in which the same formation is exposed.