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Ameghiniana
versão On-line ISSN 1851-8044
Resumo
ARTABE, Analía E. et al. The Triassic paleoflora of Potrerillos, Mendoza Province, Argentina. Ameghiniana [online]. 2007, vol.44, n.2, pp.279-301. ISSN 1851-8044.
At the Bayo and Cocodrilo Hills (Potrerillos, northwestern Mendoza Province, Argentina) two stratigraphic logs were measured in detail and 16 plantiferous levels were determined. In this contribution the systematic study of the paleoflora is presented. The 23 taxa recognized belong to Sphenopsida (Equisetales), Filicopsida (Filicales) and Gymnospermopsida (Corystospermales, Peltaspermales, Cycadales, Ginkgoales, Petriellales and Gnetales). The following taxa are described and compared: Equisetites fertilis (Frenguelli) Frenguelli, Neocalamites carrerei (Zeiller) Halle, Cladophlebis mesozoica Kurtz ex Frenguelli, Cladophlebis mendozaensis (Geinitz) Frenguelli, Dicroidium argenteum (Retallack) Gnae-dinger and Herbst, Dicroidium dubium (Feistmantel) Gothan, Dicroidium odontopteroides (Morris) Gothan, Johnstonia stelzneriana (Geinitz) Frenguelli, Johnstonia coriacea (Johnston) Walkom, Xylopteris elongata (Carruthers) Frenguelli, Zuberia feistmanteli (Johnston) Frenguelli, Feruglioa samaroides Frenguelli, Pachydermophyllum praecordillerae (Frenguelli) Retallack, Kurtziana cacheutensis (Kurtz) Frenguelli emend. Petriella and Arrondo, Sphenobaiera argentinae (Kurtz) Frenguelli, Baiera cuyana Frenguelli, Baiera africana Baldoni, Rochipteris sp., Yabeiella mareyesiaca (Geinitz) Ôishi, Yabeiella spathulata Ôishi, Yabeiella brackebuschiana (Kurtz) Ôishi, Fraxinopsis andium (Frenguelli) Anderson and Anderson and Gontriglossa sp.
Palavras-chave : Paleobotany; Systematics; Potrerillos Formation; Triassic; Mendoza; Argentina.