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The Placental Mammal Ancestor and the Post–K-Pg Radiation of Placentals
TLDR
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).
Implications of Deltatheridium specimens for early marsupial history
TLDR
The presence of specialized marsupial patterns of tooth replacement and cranial vascularization in Deltatheridium and the basal phylogenetic position of this taxon indicate that these features are characteristic of Metatheria as a whole.
The earliest known eutherian mammal
TLDR
The skeleton of a eutherian (placental) mammal found in northeastern China has limb and foot features that are known only from scansorial and arboreal extant mammals, in contrast to the terrestrial or cursorial features of other Cretaceous eutherians.
An Early Cretaceous Tribosphenic Mammal and Metatherian Evolution
TLDR
New data from this fossil support the view that Asia was likely the center for the diversification of the earliest metatherians and eutherians during the Early Cretaceous.
The Eutherian Mammal Maelestes gobiensis from the Late Cretaceous of Mongolia and the phylogeny of cretaceous eutheria
TLDR
Maelestes is only the seventh Late Cretaceous eutherian known from the skull and the upper and lower dentitions, and the fifth known from some postcranial elements, and is identified as a member of Cimolestidae sensu Kielan-Jaworowska et al. (2007).
Cretaceous eutherians and Laurasian origin for placental mammals near the K/T boundary
TLDR
The discovery of a new well-preserved mammal from the Late Cretaceous of Mongolia and a broad-scale phylogenetic analysis that includes all well-known CRETaceous fossils and a wide sample of morphology among Tertiary and recent placentals are reported.
Petrosals of Late Cretaceous marsupials from North America, and a cladistic analysis of the petrosal in therian mammals
ABSTRACT Ten isolated petrosals of Late Cretaceous marsupials belonging to three types—A, B, and C—are described from the Lance Formation of Wyoming and the Bug Creek Anthills of Montana. These are
Stem Lagomorpha and the Antiquity of Glires
TLDR
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.
Reconstruction of the cranial vessels in the Early Cretaceous mammal Vincelestes neuquenianus: implications for the evolution of the mammalian cranial vascular system
TLDR
Vincelestes neuquenianus from the Early Cretaceous of Argentina is the earliest therian mammal known from nearly complete crania and has an enlarged anterior lamina of the petrosal (=lamina obturans), through the base of which ran the ramus superior of the stapedial artery.
The eutherian stapedial artery: character analysis and implications for superordinal relationships
Evidence from outgroups, ontogeny, neontology, and fossils is used to distinguish primitive and derived character states for the major components of the eutherian stapedial artery in 17 modern
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