Revision and biostratigraphic implications of Thore Halle’s Permian plant fossils from the Falkland (Malvinas) Islands

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dc.contributor.authorMcLoughlin, Stephen
dc.contributor.authorPrevec, Rose
dc.contributor.authorCariglino, Bárbara
dc.contributor.authorPhilippe, Marc
dc.date.accessioned2024-12-02T12:56:50Z
dc.date.available2024-12-02T12:56:50Z
dc.date.issued2024-12
dc.departmentEvolutionary Studies Institute ESI
dc.description.abstractThe Permian fossil plant assemblages from the Lafonia Group on the Falkland (Malvinas) Islands collected by Thore Gustav Halle on the 1907–1909 Swedish Expedition to Patagonia and Tierra del Fuego are re-described and their systematic placement revised. Two species of sphenophytes based on foliage and one on axial remains are recognized. Eight morphotypes of Glossopteris are differentiated using more rigorously defined criteria than Halle’s original character sets. A single species each of cordaitaleans and conifers are recognized. The absence of ferns and lycophytes may indicate significant taphonomic filters on the composition of the plant assemblages. Re-assessment of the characters of the fossil woods and their nomenclatural and taxonomic problems suggests that only a single species is recognizable in the assemblage. Several of the wood and leaf species bear evidence of fungal degradation along with a broad array of arthropod herbivory and oviposition damage that add to the diversity of biotic interactions documented in the middle–high southern latitude Glossopterid Biome of the late Paleozoic. The ages of the various fossiliferous units on the Falkland (Malvinas) Islands remain equivocal, but similarities with chronostratigraphically constrained leaf assemblages from the Karoo Basin, South Africa, suggest that the Bay of Harbours Formation (uppermost unit of the Lafonia Group) is referable to the upper Guadalupian to lowermost Lopingian.
dc.description.sponsorshipPalaeontological Scientific Trust Swedish Research Council (VR grant numbers 2018-04527 and 2022-03920). Genus (DST-NRF Centre of Excellence in Palaeosciences; Grant). CONICET Postdoctoral External Scholarship Program for Young Researchers, Resolution D.N° 4279/2016.
dc.description.submitterJNC
dc.facultyFaculty of Science
dc.identifierS. McLoughlin: R. Prevec: B. Cariglino: M. Philippe: orcid.org/0000-0001-6723-239X orcid.org/0000-0001-6674-1547 orcid.org/0000-0002-4346-3502 orcid.org/0000-0002-4658-617X
dc.identifier.issn2410-4418
dc.identifier.urihttps://hdl.handle.net/10539/43014
dc.journal.titlePalaeontologia africana
dc.language.isoen
dc.publisherThe Evolutionary Studies Institute
dc.rightsCopyright 2024 the Authors. This is an open-access article published under the Creative Commons Attribution 4.0 Unported License (CC BY4.0). To view a copy of the license, please visit http://creativecommons.org/licenses/by/4.0/. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.schoolSchool of Geosciences
dc.subjectGlossopteris, sphenopsids, conifers, Lopingian, Lafonia Group, Karoo Basin.
dc.subject.otherSDG-15: Life on land
dc.titleRevision and biostratigraphic implications of Thore Halle’s Permian plant fossils from the Falkland (Malvinas) Islands
dc.typeArticle
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