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An elephant-sized Late Triassic synapsid with erect limbs
PAS, Inst Paleobiol, Twarda 51-55, PL-00818 Warsaw, Poland.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.ORCID iD: 0000-0002-4775-5254
2019 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 363, no 6422, p. 78-80Article in journal (Refereed) Published
Abstract [en]

Here, we describe the dicynodont Lisowicia bojani, from the Late Triassic of Poland, a gigantic synapsid with seemingly upright subcursorial limbs that reached an estimated length of more than 4.5 meters, height of 2.6 meters, and body mass of 9 tons. Lisowicia is the youngest undisputed dicynodont and the largest nondinosaurian terrestrial tetrapod from the Triassic. The lack of lines of arrested growth and the highly remodeled cortex of its limb bones suggest permanently rapid growth and recalls that of dinosaurs and mammals. The discovery of Lisowicia overturns the established picture of the Triassic megaherbivore radiation as a phenomenon restricted to dinosaurs and shows that stem-group mammals were capable of reaching body sizes that were not attained again in mammalian evolution until the latest Eocene.

Place, publisher, year, edition, pages
AMER ASSOC ADVANCEMENT SCIENCE , 2019. Vol. 363, no 6422, p. 78-80
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:uu:diva-375225DOI: 10.1126/science.aal4853ISI: 000455315800064PubMedID: 30467179OAI: oai:DiVA.org:uu-375225DiVA, id: diva2:1283715
Funder
Swedish Research Council, 2017-05248Available from: 2019-01-29 Created: 2019-01-29 Last updated: 2019-01-29Bibliographically approved

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Niedzwiedzki, Grzegorz

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