Morphological clocks in paleontology, and a mid-Cretaceous origin of crown Aves.

@article{Lee2014MorphologicalCI,
  title={Morphological clocks in paleontology, and a mid-Cretaceous origin of crown Aves.},
  author={Michael S. Y. Lee and Andrea Cau and Darren Naish and Gareth J. Dyke},
  journal={Systematic biology},
  year={2014},
  volume={63 3},
  pages={
          442-9
        }
}
Birds are among the most diverse and intensivelystudied vertebrate groups, but many aspects of theirhigher-level phylogeny and evolution still remaincontroversial. One contentious issue concerns theantiquity of modern birds (=crown Aves): the ageof the most recent common ancestor of all livingbirds (Gauthier 1986). Very few Mesozoic fossilsare attributable to modern birds (e.g., Clarke et al.2005; Dyke and Kaiser 2011; Brocklehurst et al. 2012;Ksepka and Boyd 2012) suggesting that they diversi… 

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References

SHOWING 1-10 OF 38 REFERENCES
Mass extinction of birds at the Cretaceous–Paleogene (K–Pg) boundary
TLDR
A diverse avifauna from the latest Maastrichtian of western North America is described, which provides definitive evidence for the persistence of a range of archaic birds to within 300,000 y of the K–Pg boundary and shows that a major radiation of Ornithurae preceded the end of the Cretaceous.
A Jurassic avialan dinosaur from China resolves the early phylogenetic history of birds
TLDR
The complete skeleton of a new paravian from the Tiaojishan Formation of Liaoning Province, China is described and including it in a comprehensive phylogenetic analysis for basal Paraves recovers Archaeopteryx as the basal-most avialan and implies that the early diversification of Paraves and Avialae took place in the Middle–Late Jurassic period.
Multiple nuclear genes and retroposons support vicariance and dispersal of the palaeognaths, and an Early Cretaceous origin of modern birds
  • O. Haddrath, A. Baker
  • Biology, Environmental Science
    Proceedings of the Royal Society B: Biological Sciences
  • 2012
TLDR
A species tree for the major palaeognath lineages is presented using 27 nuclear genes and 27 archaic retroposon insertions, showing that rheas is sister to the kiwis, emu and cassowaries, and ratite paraphyly because tinamous are sister to moas.
THE AFFINITIES OF THE ENIGMATIC DINOSAUR ESHANOSAURUS DEGUCHIIANUS FROM THE EARLY JURASSIC OF YUNNAN PROVINCE, PEOPLE’S REPUBLIC OF CHINA
TLDR
Detailed consideration of the holotype specimen suggests that several features of the dentary and dentition exclude Eshanosaurus from Sauropodomorpha and support its inclusion within Therizinosauroidea.
Definitive fossil evidence for the extant avian radiation in the Cretaceous
TLDR
A rare, partial skeleton from the Maastrichtian of Antarctica is identified as the first Cretaceous fossil definitively placed within the extant bird radiation, and phylogenetic analyses supported by independent histological data indicate that a new species, Vegavis iaai, is a part of Anseriformes (waterfowl) and is most closely related to Anatidae, which includes true ducks.
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).
The osteology of Magnosaurus nethercombensis (Dinosauria, Theropoda) from the Bajocian (Middle Jurassic) of the United Kingdom and a re-examination of the oldest records of tetanurans
  • R. Benson
  • Environmental Science, Geography
  • 2010
Magnosaurus nethercombensis from the Lower Bajocian (Middle Jurassic) of Dorset, UK is a valid species, possessing a single autapomorphy: the presence of anteroposteriorly elongate foramina, inclined
Tempo and mode of modern bird evolution observed with large-scale taxonomic sampling
TLDR
This study uses both molecules (DNA hybridization and DNA sequence) and fossils to study a large set of avian taxa and shows that the Cretaceous–Tertiary transition witnessed a major ordinal diversification within extant birds.
Calculating the Tempo of Morphological Evolution: Rates of Discrete Character Change in a Phylogenetic Context
TLDR
This chapter will focus specifically on morphological evolution: changes in size, shape, and discrete anatomical features and how rates of change can be calculated.
Didactyl Tracks of Paravian Theropods (Maniraptora) from the ?Middle Jurassic of Africa
TLDR
The new ichnotaxon takes an important position in the ichnological fossil record of Gondwana and the mid-Jurassic biota worldwide, because it is among the earliest known records of paravian maniraptorans and of didactyl theropod tracks from Africa.
...
...