In order to understand and evaluate the phylogenetic position of the Tibetan woolly rhinoceros within the rhinoceros subfamily, Deng Tao et al. analyzed a group containing 17 species of Rhinoceros, including all 5 living species and 12 extinct species of rhinoceros. , including all four known...
Sabre-toothed cats were widely distributed in the Neogene and Quaternary periods of the New and Old Worlds. They are a long-lasting group of carnivores. They first appeared in the middle Miocene and coexisted with humans until the early Holocene. Extinction. There is evidence that the demise...
In the middle Devonian period, some more advanced bony fishes appeared. Part or all of their bones ossify into hard bone. The outer layer of the skull is made up of a large number of bone fragments joined together in a complex pattern, covering the top and sides of the head and back over the...
In the history of biological evolution, some major events have occurred. The significance of these major events exceeds the sum of various general events. They are revolutionary in nature and profoundly affect the subsequent direction of evolution. The first such revolution since the emergenc...
The earliest representative of lungfish is the bifin fish of the middle Devonian period. On this basis, lungfishes were relatively prosperous from the Late Devonian to the Carboniferous, and only a few extremely specialized representatives live in the equatorial regions of Africa, Australia,...
Hadrosaurs are a type of large terrestrial herbivorous ornithischian dinosaurs that lived in the late Cretaceous period. Their fossils are widely distributed and have been found on other continents except Oceania. The most obvious features of hadrosaurs are the long and flat head with...
When the American paleobotanist Letariak was analyzing and studying the Late Ordovician ancient soil in Pennsylvania, he discovered the fossilized footprints of some annelids or arthropods that entered deep into the soil from the surface. Based on these fossils, it is inferred that the terres...
In 2019, Nature published a cover article on the research results of Wang Min, Zou Jingmei, Xu Xing, Zhou Zhonghe from the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences: Jurassic ornithosaurs reveal the role of membranous wings in dinosaurs The evolut...