[dinosaur] Fossil record of Antarctic land mammals + Seymour Island fossil vertebrates (free pdfs)

Ben Creisler
[email protected]

New papers with free pdfs:



Javier N. GELFO, Francisco J. GOIN, Nicolás BAUZÁ & Marcelo REGUERO (2019)
The fossil record of Antarctic land mammals: commented review and
hypotheses for future research.
Advances in Polar Science 30(3): 251-273
doi: 10.13679/j.advps.2019.0021
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.aps-2Dpolar.org_paper_2019_30_03_A190814000002&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=EybPGF3TApoqXAtUpYG0nE7VVx6wYhunTdskQ9TGpdg&s=oUpfxW_tH9q4mVZYAp6nRYSEGBx78jEZq_FmtwsxrGY&e= 

Free pdf:
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.aps-2Dpolar.org_paper_2019_30_03_A190814000002_full&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=EybPGF3TApoqXAtUpYG0nE7VVx6wYhunTdskQ9TGpdg&s=HgZZRkWsUuzoC-aa0ipB60t4-oLTZ6OM03M_AfpWTIY&e= 


The fossil record of terrestrial mammals in Antarctica is temporally and
geographically constrained to the Eocene outcrops of La Meseta and
Submeseta formations in Seymour (Marambio) Island in West Antarctica. The
faunal assemblage indicates a clear South American imprint since all the
groups have a close phylogenetic relationship with Cretaceous and Paleogene
mammals from Patagonia. Despite the presence of several mammalian taxonomic
groups: Dryolestida, Gondwanatheria, Eutheria and Metatheria, the presence
of other major mammalian taxa should be expected and will probably be
confirmed by new findings. Placental mammals with an inferred body mass
between 10 to 400 kg in size, are represented by xenarthrans, and two
groups of the so called South American native ungulates: Astrapotheria and
Litopterna. The Metatheria are the smaller (less than 1 kg) and most
abundant components of the fauna. Marsupials are represented by
derorhynchid ameridelphians, several microbiotherian australidelphians
(both microbiotheriids and woodburnodontids), and ?glasbiid prepidolopod
and polydolopid polydolopimorphians. Plus, there are remains of several
mammalian teeth of indeterminate phylogenetic affinities. The present
knowledge of the Southern Hemisphere mammalian evolution and
paleogeographic change through time, indicates that Antarctica played a
major role for land mammals, at least since the Jurassic. The actual
representation of Paleogene terrestrial mammals in Antarctica is most
probably biased, as all the evidence indicates that australosphenidan
mammals should be present in this continent since the Jurassic.

======

Marcelo A. REGUERO (2019)
Antarctic Paleontological Heritage: Late Cretaceous-Paleogene vertebrates
from Seymour (Marambio) Island, Antarctic Peninsula.
Advances in Polar Science 30(3): 328-355
doi: 10.13679/j.advps.2019.0015
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.aps-2Dpolar.org_paper_2019_30_03_A190814000004&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=EybPGF3TApoqXAtUpYG0nE7VVx6wYhunTdskQ9TGpdg&s=JUx_ZLDJ8te3ceQNgSEMWLvX_i0BnwzaOaqRWTIC1tQ&e= 

Free pdf:
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.aps-2Dpolar.org_paper_2019_30_03_A190814000004_full&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=EybPGF3TApoqXAtUpYG0nE7VVx6wYhunTdskQ9TGpdg&s=RU4iTB2fQPMPWeN4Kx-hkwq-jnd0uHQk3eVIexhn66M&e= 


Antarctica has significant environmental, scientific, historic, and intrinsic
values, all of which are worth protecting into the future. This continent
has a discrete number of places of scientific interest that exhibit great
potential as natural heritage sites; its geodiversity is of fundamental
importance to scientific values of the continent, and the pursuit of
geological and paleontological knowledge has had a strong influence on its
historical values. Seymour Island was once called the 'Rosetta Stone' of
Southern Hemisphere paleobiology, because this small island provides the
most complete and richly fossiliferous Late Cretaceous–Paleogene sequence
in Antarctica. In particular, fossil vertebrates form part of the evidence
used in reconstructing the history of life on Antarctica. Paleontological
heritage is considered a subset of geo-heritage that embodies both natural
and historical components which has received only indirect recognition.
Seymour Island is an outstanding paleontological area with high heritage
value of its Late Cretaceous/Paleogene vertebrates and should be considered
for geo-conservation and protection. This paper reviews vertebrate fossil
occurrences and outcrops on Seymour Island and discusses some threats to
these fossil sites.


<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.avg.com_email-2Dsignature-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dlink-26utm-5Fcampaign-3Dsig-2Demail-26utm-5Fcontent-3Dwebmail&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=EybPGF3TApoqXAtUpYG0nE7VVx6wYhunTdskQ9TGpdg&s=5Lh9JYUZfbpfx8Fkn_ONTNzXkREXDrQBRMIxFPvCuBo&e= >
Virus-free.
www.avg.com
<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.avg.com_email-2Dsignature-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dlink-26utm-5Fcampaign-3Dsig-2Demail-26utm-5Fcontent-3Dwebmail&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=EybPGF3TApoqXAtUpYG0nE7VVx6wYhunTdskQ9TGpdg&s=5Lh9JYUZfbpfx8Fkn_ONTNzXkREXDrQBRMIxFPvCuBo&e= >
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>