Vegaviidae, a new clade of southern diving birds that survived the K/T boundary

@article{Agnolin2017VegaviidaeAN,
  title={Vegaviidae, a new clade of southern diving birds that survived the K/T boundary},
  author={Federico L. Agnolin and Federico Briss{\'o}n Egli and Sankar Chatterjee and Jordi Alexis Garcia Mars{\`a} and Fernando Emilio Novas},
  journal={The Science of Nature},
  year={2017},
  volume={104},
  pages={1-9}
}
The fossil record of Late Cretaceous–Paleogene modern birds in the Southern Hemisphere includes the Maastrichtian Neogaeornis wetzeli from Chile, Polarornis gregorii and Vegavis iaai from Antarctica, and Australornis lovei from the Paleogene of New Zealand. [] Key Result This analysis resulted in the recognition of these taxa as a clade of basal Anseriformes that we call Vegaviidae.

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References

SHOWING 1-10 OF 74 REFERENCES
First diagnosable non-sphenisciform bird from the early Paleocene of New Zealand
A new avian taxon from the early Paleocene Waipara Greensand in Canterbury, New Zealand, is described. The holotype of Australornis lovei, gen. et sp. nov. includes wing and pectoral girdle bones,
An Avian Tarsometatarsus from Near the K-T Boundary of New Zealand
TLDR
This fossil demonstrates that birds other than penguins reached New Zealand by at latest the ear liest Paleocene, and suggests an aquatic ecology for the Waimakariri bird, but does not provide evidence for placement in any extant clade.
New Antarctic findings of Upper Cretaceous and lower Eocene loons (Aves: Gaviiformes)
The unexpected survival of an ancient lineage of anseriform birds into the Neogene of Australia: the youngest record of Presbyornithidae
TLDR
The morphological similarity between species of Wilaru and the Eocene South American presbyornithid Telmabates antiquus supports the hypothesis of a Gondwanan radiation during the evolutionary history of the PresbyORNithidae and underscores the temporal continuance of Australia’s vertebrates.
A Late Cretaceous (Maastrichtian) Avifauna from the Maevarano Formation, Madagascar
TLDR
Bird fossils recovered from the Maevarano Formation document one of the most size- and phylogenetically diverse Cretaceous-age Gondwanan avifaunas, including representative basal pygostylian, enantiornithine, nonenantiornithsine, ornithothoracine, and (4) ornithurine taxa.
New Selachian Records from the Upper Cretaceous of Southern Patagonia: Paleobiogeographical Implications and the Description of a New Taxon
ABSTRACT We describe isolated shark teeth collected in levels of the Calafate Formation (Maastrichtian, Late Cretaceous) on the southeast coast of Argentino Lake, Calafate City, Santa Cruz Province,
Flightless Diving Duck (Aves, Anatidae) from the Pleistocene of Shiriya, Northeast Japan
TLDR
Comparisons of these taxa and other flightless anatids with their relatives show that some of the apparently shared osteological features of Shiriyanetta and Chendytes are probably associated with flightlessness rather than reflecting a close relationship between the two genera.
Osteology Supports a Stem-Galliform Affinity for the Giant Extinct Flightless Bird Sylviornis neocaledoniae (Sylviornithidae, Galloanseres)
TLDR
Sylviornis neocaledoniae is found to be a stem galliform, distant from megapodiids, and the sister taxon to the extinct flightless Megavitiornis altirostris from Fiji, which is transferred to the family Sylviornithidae.
A reappraisal of the Cretaceous non-avian dinosaur faunas from Australia and New Zealand: evidence for their Gondwanan affinities
It has often been assumed that Australasian Cretaceous dinosaur faunas were for the most part endemic, but with some Laurasian affinities. In this regard, some Australasian dinosaurs have been
Bone microstructure of Vegavis iaai (Aves, Anseriformes) from the Upper Cretaceous of Vega Island, Antarctic Peninsula
Abstract Vegavis iaai is a neornithine bird coming from the Late Cretaceous Sandwich Bluff Member of the López de Bertodano Formation (Maastrichtian), Antarctic Peninsula. Vegavis constitutes the
...
1
2
3
4
5
...