Fossil Land Mammal from Antarctica

  title={Fossil Land Mammal from Antarctica},
  author={Michael O. Woodburne and William J. Zinsmeister},
  pages={284 - 286}
A fossil land mammal, apparently the first found in Antarctica, belongs to the extinct marsupial family Polydolopidae. The fossils were recovered from rocks about 40 million years old on Seymour Island, in the northern Antarctic Peninsula. The newly discovered marsupials support theories that predicted their former presence in Antarctica and strengthen proposals that Australian marsupials perhaps originated from South American species that dispersed across Antarctica when Australia still was… Expand
Antarctodolops dailyi, a new genus and species of Polydolopidae, a group of marsupial mammals heretofore known only from strata of Early Tertiary age in South America, is described from rocks aboutExpand
An Antarctic Mammalian Community
This is a description of an Eocene Antarctic mammalian assemblage and illustrates the faunal connection that existed between Antarctic and South America, since all of these ancient Eocene AntarcticExpand
Cenozoic High Latitude Heterochroneity of Southern Hemisphere Marine Faunas
Observations of Antarctic marine invertebrates corroborate those recently made about terrestrial mammals and plants in the Arctic. Expand
The fossil record of Antarctic land mammals: commented review and hypotheses for future research
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 WestExpand
New mammalian and avian records from the late Eocene La Meseta and Submeseta formations of Seymour Island, Antarctica
New fossils from Seymour Island collected by the Antarctic Peninsula Paleontology Project provide support for previously proposed, but contentious, earliest occurrence records of these clades of Gruiformes and Xenarthra on Antarctica. Expand
New records of the sharks Isurus and Hexanchus from the Eocene of Seymour Island, Antarctica
Most of the information about the Tertiary ichthyofauna in the peri-Antarctic Ocean comes from Seymour Island, close to the tip of the Antarctic Peninsula. We present here new records which improveExpand
Dispersal, vicariance, and the Late Cretaceous to early tertiary land mammal biogeography from South America to Australia
A review of paleontological, phyletic, geophysical, and climatic evidence leads to a new scenario of land mammal dispersal among South America, Antarctica, and Australia in the Late Cretaceous toExpand
Terrestrial bird or dinosaur phalanx from the New Zealand Cretaceous
A phalanx of Haumurian age found near the Mangahouanga Stream, Hawke's Bay, North Island, New Zealand, probably pertains to either a land bird or a theropod dinosaur, and further demonstrates the existence of an insular terrestrial vertebrate fauna in New Zealand well after the land mass had become separated from East Gondwanaland. Expand
A reassessment of Antarctic polydolopid marsupials (Middle Eocene, La Meseta Formation)
Abstract New polydolopid marsupial specimens have been recovered from the La Meseta Formation, a late early Eocene to probably early Oligocene unit cropping out in the northern third of SeymourExpand
First fossil frog from Antarctica: implications for Eocene high latitude climate conditions and Gondwanan cosmopolitanism of Australobatrachia
The results demonstrate that Eocene freshwater ecosystems in Antarctica provided habitats favourable for ectothermic vertebrates, at a time when there were at least ephemeral ice sheets existing on the highlands within the interior of the continent. Expand


Cretaceous and Tertiary dinoflagellates from Seymour Island, Antarctica
THE marine sediments on Seymour Island, north-eastern Antarctica Peninsula, have produced numerous plant, invertebrate, and vertebrate remains over the past 80 yr (ref. 1). These strata have beenExpand
Review of fossil penguins from Seymour Island
  • G. Simpson
  • Biology
  • Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1971
Two collections of fossil penguins have been made from Seymour Island, off the north-eastern end of the Antarctic Peninsula, and the ecological similarity and some indirect evidence suggest that despite the presence of relative gigantism these penguins lived in considerably warmer waters than those of the present Antarctic coast. Expand
The Fossil Mammal Fauna of South America
Of the three southern continents, South America was more isolated during the Tertiary than Africa, less isolated than Australia. Its record of Cenozoic mammalian life is better than that of either.Expand
The distribution of the present-day, shallow-water benthic faunas of the southern circum- Pacific in large part, is the result of a series of environmental perturbations and changes in geographyExpand
South American Geochronology: Radiometric Time Scale for Middle to Late Tertiary Mammal-Bearing Horizons in Patagonia
Radiometric (potassium-argon) age determinations for basalts and tuffs associated with middle to late Tertiary mammal-bearing horizons in Patagonia, southern Argentina, permit refinement ofExpand
Condensation of the Planets
The early overluminous phase, during the condensation of the Sun can be a great help in understanding why the inner planets are largely made up of iron and magnesium silicate.
Boulder; palynology)
    Chatteree (The Museum, Texas Tech University, Lubbock; fossil reptiles and fish)
      Department of Earth Sciences, University of California, Riverside; fossil mammals and birds)