ArticleScientific reports2020
First fossil frog from Antarctica: implications for Eocene high latitude climate conditions and Gondwanan cosmopolitanism of Australobatrachia.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Earth history and trait innovation drive the global radiation of modern toads.Proceedings. Biological sciences · 2025Article
- Eocene Shark Teeth From Peninsular Antarctica: Windows to Habitat Use and Paleoceanography.Paleoceanography and paleoclimatology · 2024Article
- Article
- Molecular Phylogeny Reveals the Past Transoceanic Voyages of Drywood Termites (Isoptera, Kalotermitidae).Molecular biology and evolution · 2022Article
- Antarctica as an evolutionary arena during the Cenozoic global cooling.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Probing the Ecology and Climate of the Eocene Southern Ocean With Sand Tiger SharksPaleoceanography and paleoclimatology · 2020Article
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Authors and funding
3 authors.
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Abstract
Cenozoic ectothermic continental tetrapods (amphibians and reptiles) have not been documented previously from Antarctica, in contrast to all other continents. Here we report a fossil ilium and an ornamented skull bone that can be attributed to the Recent, South American, anuran family Calyptocephalellidae or helmeted frogs, representing the first modern amphibian found in Antarctica. The two bone fragments were recovered in Eocene, approximately 40 million years old, sediments on Seymour Island, Antarctic Peninsula. The record of hyperossified calyptocephalellid frogs outside South America supports Gondwanan cosmopolitanism of the anuran clade Australobatrachia. Our results demonstrate that Eocene freshwater ecosystems in Antarctica provided habitats favourable for ectothermic vertebrates (with mean annual precipitation ≥900 mm, coldest month mean temperature ≥3.75 °C, and warmest month mean temperature ≥13.79 °C), at a time when there were at least ephemeral ice sheets existing on the highlands within the interior of the continent.
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