First cranial remains of a gondwanatherian mammal reveal remarkable mosaicism (original) (raw)

“…High Early to Middle Jurassic rates do not solely reflect evolution of the therian stem group, as elevated rates also occur in australosphenidans (the monotreme stem group) and multituberculates ( Figure 1A). Critically, analysis of the matrices of Yuan et al [33] and Krause et al [34], which primarily document the evolution of allotherians, including multituberculates (clades that are poorly sampled in our focal matrix), confirms that high Early to Late Jurassic rates of evolution were not confined solely to the therian stem lineage (DRYAD Figures S12-S17).…”

Section: Rates Of Morphological Evolutionsupporting

“…High Early to Middle Jurassic rates do not solely reflect evolution of the therian stem group, as elevated rates also occur in australosphenidans (the monotreme stem group) and multituberculates ( Figure 1A). Critically, analysis of the matrices of Yuan et al [33] and Krause et al [34], which primarily document the evolution of allotherians, including multituberculates (clades that are poorly sampled in our focal matrix), confirms that high Early to Late Jurassic rates of evolution were not confined solely to the therian stem lineage (DRYAD Figures S12-S17).…”

Section: Rates Of Morphological Evolutionsupporting

“…Our study revealed 37 new mandibular features of Haramiyavia. Most of these features were treated as unknown or inapplicable in two recent studies supporting the haramiyidan-multituberculate clade (18) or the haramiyidan-gondwanatherian-multituberculate clade (23). When these features are added into the matrices of these studies, our analyses of the improved datasets show that haramiyidans (including Haramiyavia) are a mammaliaform clade outside crown Mammalia, separated from multituberculates ( Fig.…”

Section: Phylogenetic Analyses and Implicationsmentioning

“…4A). A recent variant of this hypothesis is that haramiyids are closely related to the gondwanatherian-multituberculate clade (23). Including Late Triassic haramiyids in a clade with the geologically younger multituberculates would help extend the minimal age of their common ancestor, the basis for recent arguments in favor of a Late Triassic diversification of crown Mammalia (18,23) (Fig.…”

Section: Phylogenetic Analyses and Implicationsmentioning

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