The placental mammal ancestor and the post-KPg radiation of placentals (project)

O’Leary, Maureen A.; Bloch, Iwan; Flynn, Jullien M; Gaudin, Jérémy; Giallombardo, G; Giannini, P; Goldberg, Louis J.; Kraatz, P; Luo, Lili; Meng, Manfred; Ni, Nuzhdin; Nováček, Jan; Perini, Anna; Randall, Stephen K.; Rougier, W; Sargis, J; Silcox, T; Simmons, Breana L.; Spaulding, Sarah A.; Velazco, Maria Inés; Weksler, W; Wible, R; Cirranello, L

doi:10.7934/p773

Cited by 15 publications

(14 citation statements)

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“…This combination is the signature pattern of the rodent skull and it is nicely reconstructed at the root of the rodent tree (Table ). So far we can say that it was already present in ancestral rodents, and it is significant to note that this point in time is, at the very least, 55 my old in the Paleocene epoch (O'Leary et al, ), but see Fabre et al () for significantly older estimates that extend well into the Cretaceous. This may compose an allometric pattern shared with lagomorphs (which together with Rodentia compose the unranked clade Glires), so the evolution of this rostral configuration, modeled by the particular allometries just described, need more distant mammalian outgroups to be fully appreciated.…”

Section: Discussionmentioning

confidence: 97%

Quantitative developmental data in a phylogenetic framework

Giannini

2014

J Exp Zool Pt B

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Following the embryonic period of organogenesis, most development is allometric growth, which is thought to produce most of the evolutionary morphological divergence between related species. Bivariate or multivariate coefficients of allometry are used to describe quantitative developmental data and are comparable across taxa; as such, these coefficients are amenable to direct treatment in a phylogenetic framework. Mapping of actual allometric coefficients onto phylogenetic trees is supported on the basis of the evolving nature of growth programs and the type of character (continuous) that they represent. This procedure depicts evolutionary allometry accurately and allows for the generation of reliable reconstructions of ancestral allometry, as shown here with a previously published case study on rodent cranial ontogeny. Results reconstructed the signature allometric patterns of rodents to the root of the phylogeny, which could be traced back into a (minimum) Paleocene age. Both character and statistical dependence need to be addressed, so this approach can be integrated with phylogenetic comparative methods that deal with those issues. It is shown that, in this particular sample of rodents, common ancestry explains little allometric variation given the level of divergence present within, and convergence between, major rodent lineages. Furthermore, all that variation is independent of body mass. Thus, from an evolutionary perspective, allometry appears to have a strong functional and likely adaptive basis.

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Section: Discussionmentioning

confidence: 97%

Quantitative developmental data in a phylogenetic framework

Giannini

2014

J Exp Zool Pt B

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“…The anatomy of the stapedial artery and its branches (or their osteological correlates) has served as an important character in numerous phylogenetic studies of mammalian relationships (e.g., Novacek, 1986Novacek, , 1993Wible, 1986, 1987, Diamond, 1991Luo and Wible, 2005;O'Leary et al, 2013). It has long been the consensus view among morphologists that the stapedial system is lost early in the history of the xenarthran lineage, and the artery has not been recorded as present in the adult of any living…”

Section: Discussionmentioning

confidence: 99%

“…xenarthrans were among the more characteristic faunal elements of the South American Cenozoic and successfully invaded North America and the West Indies (McDonald and De Iuliis, 2008). They comprise one of the major clades of placental mammals (Asher and Helgen, 2011;O'Leary et al, 2013) and include Pilosa (sloths and anteaters) and…”

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confidence: 99%

EucholoeopsAmeghino, 1887 (Xenarthra, Tardigrada, Megalonychidae) from the Santa Cruz Formation, Argentine Patagonia: implications for the systematics of Santacrucian sloths

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Toledo³

et al. 2014

Geodiversitas

503

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“…The order Chiroptera is diverse and consists of over 1300 species of bats that are distributed across every continent except Antarctica (18). Chiroptera consists of two suborders, Yinpterochiroptera (which comprises megabats and several families of microbats) and Yangochiroptera (comprising all remaining microbat families) that diverged over 50 million years ago (19)(20)(21). Within these suborders, bat species display tremendous diversity in size, morphology, ecological niches, diets, and social interactions.…”

Section: Introductionmentioning

confidence: 99%

Novel Insights Into Immune Systems of Bats

et al. 2020

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In recent years, viruses similar to those that cause serious disease in humans and other mammals have been detected in apparently healthy bats. These include filoviruses, paramyxoviruses, and coronaviruses that cause severe diseases such as Ebola virus disease, Marburg haemorrhagic fever and severe acute respiratory syndrome (SARS) in humans. The evolution of flight in bats seem to have selected for a unique set of antiviral immune responses that control virus propagation, while limiting self-damaging inflammatory responses. Here, we summarize our current understanding of antiviral immune responses in bats and discuss their ability to co-exist with emerging viruses that cause serious disease in other mammals. We highlight how this knowledge may help us to predict viral spillovers into new hosts and discuss future directions for the field.

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The placental mammal ancestor and the post-KPg radiation of placentals (project)

Cited by 15 publications

References 0 publications

Quantitative developmental data in a phylogenetic framework

Quantitative developmental data in a phylogenetic framework

EucholoeopsAmeghino, 1887 (Xenarthra, Tardigrada, Megalonychidae) from the Santa Cruz Formation, Argentine Patagonia: implications for the systematics of Santacrucian sloths

Novel Insights Into Immune Systems of Bats

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