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The Placental Mammal Ancestor and the Post–K-Pg Radiation of Placentals
A phylogenetic tree shows that crown clade Placentalia and placental orders originated after the K-Pg boundary, but phenomic signals overturn molecular signals to show Sundatheria (Dermoptera + Scandentia) as the sister taxon of Primates, a close link between Proboscidea and Sirenia (sea cows), and the monophyly of echolocating Chiroptera (bats).
THE OSTEOLOGY OF RHOMBOMYLUS (MAMMALIA, GLIRES): IMPLICATIONS FOR PHYLOGENY AND EVOLUTION OF GLIRES
This study consists of a taxonomic revision of the genus, a detailed description of the osteological morphology, extensive analyses on morphological characters, analyses on phylogeny, discussions on divergence time of the Glires, and analyses on functional morphology of mastication and locomotion.
Osseous inner ear structures and hearing in early marsupials and placentals
Qualitative and quantitative analyses show that, with a typical therian inner ear, Late Cretaceous marsupials and placentals were probably capable of high-frequency hearing.
Stem Lagomorpha and the Antiquity of Glires
The results support the hypothesis that rodents and lagomorphs radiated during the Cenozoic and diverged from other placental mammals close to the Cretaceous-Tertiary boundary.
Three new Jurassic euharamiyidan species reinforce early divergence of mammals
The phylogeny suggests that allotherian mammals evolved from a Late Triassic Haramiyavia-like ancestor and diversified into euharamiyidans and multituberculates with a cosmopolitan distribution, implying homologous acquisition of many craniodental and postcranial features in the two groups.
Faunal turnovers of Palaeogene mammals from the Mongolian Plateau
Most orders and many families of modern mammals were established during the Palaeogene. Mammalian evolution during this period of time has been correlated with global climatic events, although the…
Transitional mammalian middle ear from a new Cretaceous Jehol eutriconodont
This transitional mammalianmiddle ear narrows the morphological gap between the mandibular middle ear in basal mammaliaforms and the definitive mammalian middle ear of extant mammals; it reveals complex changes contributing to the detachment of ear ossicles during mammalian evolution.
The Morphology of Tribosphenomys (Rodentiaformes, Mammalia): Phylogenetic Implications for Basal Glires
The results of the analyses confirm the outgroup placement of Tribosphenomys relative to Rodentia (in the crown-clade restricted sense of that name), and include a sister-group pairing of lagomorphs and rodents (Glires), with various extinct taxa interposed as sequential outgroups to each of these crown clades.
The oldest known primate skeleton and early haplorhine evolution
A nearly complete and partly articulated skeleton of a primitive haplorhine primate from the early Eocene of China, about 55 million years ago, is reported, the oldest fossil primate of this quality ever recovered and further constrains the age of divergence between tarsiiforms and anthropoids.
A Mesozoic gliding mammal from northeastern China
- J. Meng, Yaoming Hu, Yuanqing Wang, Xiaolin Wang, Chuankui Li
- Environmental Science, BiologyNature
- 14 December 2006
A new Mesozoic mammal from Inner Mongolia, China, is reported that represents a previously unknown group characterized by a highly specialized insectivorous dentition and a sizable patagium (flying membrane) for gliding flight.