The origin and early evolution of metatherian mammals: the Cretaceous record
Por um escritor misterioso
Descrição
Metatherians, which comprise marsupials and their closest fossil relatives, were one of the most dominant clades of mammals during the Cretaceous and are the most diverse clade of living mammals after Placentalia. Our understanding of this group has increased greatly over the past 20 years, with the discovery of new specimens and the application of new analytical tools. Here we provide a review of the phylogenetic relationships of metatherians with respect to other mammals, discuss the taxonomic definition and diagnosis of Metatheria, outline the Cretaceous history of major metatherian clades, describe the paleobiology, biogeography, and macroevolution of Cretaceous metatherians, and provide a physical and climatic background of Cretaceous metatherian faunas. Metatherians are a clade of boreosphendian mammals that must have originated by the Late Jurassic, but the first unequivocal metatherian fossil is from the Early Cretaceous of Asia. Metatherians have the distinctive tightly interlocking occlusal molar pattern of tribosphenic mammals, but differ from Eutheria in their dental formula and tooth replacement pattern, which may be related to the metatherian reproductive process which includes an extended period of lactation followed by birth of extremely altricial young. Metatherians were widespread over Laurasia during the Cretaceous, with members present in Asia, Europe, and North America by the early Late Cretaceous. In particular, they were taxonomically and morphologically diverse and relatively abundant in the Late Cretaceous of western North America, where they have been used to examine patterns of biogeography, macroevolution, diversification, and extinction through the Late Cretaceous and across the Cretaceous-Paleogene (K-Pg) boundary. Metatherian diversification patterns suggest that they were not strongly affected by a Cretaceous Terrestrial Revolution, but they clearly underwent a severe extinction across the K-Pg boundary.
Mesozoic mammals -- what do we know from Chin
Palaeos Vertebrates Eutheria
File:The-origin-and-early-evolution-of-metatherian-mammals-the-Cretaceous- record-zookeys-465-001-g011.jpg - Wikimedia Commons
Cenozoic Metatherian Evolution in the Americas
Wikisource:WikiProject Open Access/Programmatic import from PubMed Central/The origin and early evolution of metatherian mammals the Cretaceous record - Wikisource, the free online library
Mesozoic mammals — early mammalian diversity and ecomorphological adaptations
Palaeos Vertebrates Eutheria
Athena Review 5-1 Records of Life 25: Jurassic + Cretaceous Mammals
File:The-origin-and-early-evolution-of-metatherian-mammals-the-Cretaceous- record-zookeys-465-001-g002.jpg - Wikimedia Commons
A large carnivorous mammal from the Late Cretaceous and the North American origin of marsupials
The Evolution of Marsupials
The Opossum's Tale
origin of mammals, The Pterosaur Heresies
Wikisource:WikiProject Open Access/Programmatic import from PubMed Central/The origin and early evolution of metatherian mammals the Cretaceous record - Wikisource, the free online library
de
por adulto (o preço varia de acordo com o tamanho do grupo)
