New cyathealean tree fern, Yavanna chimaerica gen. et sp. nov., from the Early Cretaceous of Livingston Island, Antarctica

A new genus and species of cyathealean fern, Yavanna chimaerica gen. et sp. nov., is erected for several permineralized stems recovered from the Early Cretaceous (Aptian) Cerro Negro Formation, which crops out at the South Shetland Islands, Antarctica. The new species is characterized by solenosteli...

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Autor principal: Vera, E.I
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Publicado: 2013
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100 1 |a Vera, E.I. 
245 1 0 |a New cyathealean tree fern, Yavanna chimaerica gen. et sp. nov., from the Early Cretaceous of Livingston Island, Antarctica 
260 |c 2013 
270 1 0 |m Vera, E.I.; CONICET-Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Av. Ángel Gallardo 470, C1405DJR Buenos Aires, Argentina; email: evera@macn.gov.ar 
506 |2 openaire  |e Política editorial 
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504 |a Gould, R.E., Cibotium tasmanense sp. nov., a fossil tree-fern from the Tertiary of Tasmania (1972) Australian Journal of Botany, 20, pp. 119-126 
504 |a Hathway, B., Duane, A.M., Cantrill, D.J., Kelley, S.P., 40Ar/39Ar geochronology and palynology of the Cerro Negro Formation, South Shetland Islands, Antarctica: a new radiometric tie for Cretaceous terrestrial biostratigraphy in the Southern Hemisphere (1999) Australian Journal of Earth Sciences, 46, pp. 593-606 
504 |a Hernández, P.J., Azcárate, V., Estudio paleobotánico preliminar sobre restos de una tafoflora de la Península Byers (Cerro Negro), Isla Livingston, Islas Shetland del Sur, Antartica. Instituto Antártico Chileno (1971) Serie Científica, 2, pp. 15-50 
504 |a Korall, P., Pryer, K.M., Metzgar, J.S., Schneider, H., Conant, D.S., Tree ferns: monophyletic groups and their relationships as revealed by four protein-coding plastid loci (2006) Molecular Phylogenetics and Evolution, 39, pp. 830-845 
504 |a Kramer, K.U., Dicksoniaceae (1990) Volume I. Pteridophytes and Gymnosperms, pp. 94-99. , Springer-Verlag, Berlin, K.U. Kramer, P.S. Green (Eds.) The Families and Genera of Vascular Plants 
504 |a Lantz, T.C., Rothwell, G.W., Stockey, R.A., Conantiopteris schuchmanii, gen. et sp. nov., and the role of fossils in resolving the phylogeny of Cyatheaceae s.l (1999) Journal of Plant Research, 112, pp. 361-381 
504 |a Lucansky, T.W., Comparative studies of the nodal and vascular anatomy of neotropical Cyatheaceae. I. Metaxya and Lophosoria (1974) American Journal of Botany, 61, pp. 461-474 
504 |a Lucansky, T.W., Anatomical studies of Cyathea and Trichipteris (Cyatheaceae) (1977) American Journal of Botany, 64, pp. 253-259 
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504 |a Nishida, H., Lophosoriorhachis japonica n. gen. et sp., from the lower Cretaceous of Choshi, Chiba Prefecture, Japan (1982) Palaeontographica Abteilung B, 181, pp. 118-122 
504 |a Nishida, H., Anatomical studies of the frond axis of the Cyatheaceae, s.l. with a revision of permineralized frond axes from the Cretaceous of Japan (1984) Contributions to the Botany of the Andes I, pp. 5-80. , Academia Scientific Book Inc., Tokio, M. Nishida (Ed.) 
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504 |a Nishida, H., Nishida, M., Thyrsopterorachis, gen. nov., a tree fern rachis from the Upper Cretaceous of Hokkaido, Japan (1979) Journal of Plant Research, 92, pp. 187-195 
504 |a Ogura, Y., On the structure of a fossil fern stem of Cibotium type from the Upper Cretaceous of Iwate (1933) Botanical Magazine, 47, pp. 748-754 
504 |a Ogura, Y., (1972) Comparative anatomy of vegetative organs of the Pteridophytes. Handbuch der Pflanzenanatomie, 7, p. 502. , Borntraeger, Berlin 
504 |a Párica, C., Salani, F.M., Vera, E., Remesal, M., Césari, S.N., Geología de la Formación Cerro Negro (Cretácico) en Isla Livingston: aportes a su geocronología y contenido paleontológico (2007) Revista de la Asociación Geológica Argentina, 62, pp. 553-567 
504 |a Sen, R., Rahaman, S., Anatomy of Thyrsopteris elegans Kunze (1999) Indian Fern Journal, 16, pp. 123-129 
504 |a Smith, A.R., Pryer, K.M., Schuettpelz, E., Korall, P., Schneider, H., Wolf, P.G., Aclassification for extant ferns (2006) Taxon, 55, pp. 705-731 
504 |a Stockey, R.A., Rothwell, G.W., Cretaceous tree ferns of western North America: Rickwoodopteris hirsuta (Cyatheaceae s.l) (2004) Review of Palaeobotany and Palynology, 132 (1-2), pp. 103-114 
504 |a Tidwell, W.D., Nishida, H., Anew fossilized tree fern stem, Nishidacaulis burgii gen. et sp. nov., from Nebraska-South Dakota, USA (1993) Review of Palaeobotany and Palynology, 78, pp. 55-67 
504 |a Tidwell, W., Nishida, H., Webster, N., Oguracaulis banksii gen. et sp. nov., a mid-Mesozoic tree-fern from Tasmania, Australia (1989) Papers and Proceedings of the Royal Society of Tasmania, 123, pp. 15-25 
504 |a Torres, T., Barale, G., Thevernard, F., Philippe, M., Galleguillos, H., Morfología y sistemática de la flora del Cretácico Inferior de President Head, Isla Show, archipiélago de las Shetland del Sur, Antártica. Instituto Antártico Chileno (1997) Serie Científica, 7, pp. 59-86 
504 |a Vera, E.I., Anew species of Ashicaulis Tidwell (Osmundaceae) from Aptian strata of Livingston Island, Antarctica (2007) Cretaceous Research, 28, pp. 500-508 
504 |a Vera, E.I., Alienopteris livingstonensis gen. et sp. nov., enigmatic petrified tree fern stem (Cyatheales) from the Aptian Cerro Negro Formation, Antarctica (2009) Cretaceous Research, 30, pp. 401-410 
504 |a Vera, E.I., Anew specimen of Millerocaulis (Osmundales: Osmundaceae) from the Cerro Negro Formation (Lower Cretaceous), Antarctica (2010) Revista del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", nueva serie, 12, pp. 41-46 
504 |a Vera, E.I., Oligocene ferns from the Rancahué Formation (Aluminé, Neuquén, Argentina): Cuyenopteris patagoniensis gen. et sp. nov. (Polypodiales: Blechnaceae/Dryopteridaceae) and Alsophilocaulis calveloi Menéndez emend. Vera (Cyatheales: Cyatheaceae) (2010) Geobios, 43, pp. 465-478 
504 |a Vera, E.I., Livingstonites gabrielae gen. et sp. nov., permineralized moss (Bryophyta: Bryales) from the Aptian Cerro Negro Formation of Livingston Island (South Shetland Islands, Antarctica) (2011) Ameghiniana, 48, pp. 122-128 
504 |a Vera, E.I., Millerocaulis tekelili sp. nov., new species of osmundalean fern from the Aptian Cerro Negro Formation (Antarctica) (2012) Alcheringa, 36, pp. 35-45 
520 3 |a A new genus and species of cyathealean fern, Yavanna chimaerica gen. et sp. nov., is erected for several permineralized stems recovered from the Early Cretaceous (Aptian) Cerro Negro Formation, which crops out at the South Shetland Islands, Antarctica. The new species is characterized by solenostelic erect stems with medullary bundles traversing the pith, and surrounded by persistent petiole bases and adventitious roots. Proximal petiole bases present a one-parted modified omega-shaped trace, which becomes three-parted distally. The anatomy of the new fern show similarities with both Thyrsopteris elegans Kunze and with the Cyatheaceae s.s., suggesting that it is a representative of an extinct lineage among the Cyatheales. © 2013 Elsevier Ltd.  |l eng 
593 |a CONICET-Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Av. Ángel Gallardo 470, (C1405DJR) Buenos Aires, Argentina 
593 |a Área de Paleontología, Departamento de Geología, Universidad de Buenos Aires, Pabellón 2 Ciudad Universitaria, (C1428EGA) Buenos Aires, Argentina 
690 1 0 |a ANTARCTICA 
690 1 0 |a APTIAN 
690 1 0 |a CERRO NEGRO FORMATION 
690 1 0 |a CYATHEALES 
690 1 0 |a LIVINGSTON ISLAND 
690 1 0 |a SOUTH SHETLAND ISLANDS 
690 1 0 |a ANATOMY 
690 1 0 |a CRETACEOUS 
690 1 0 |a FERN 
690 1 0 |a NEW GENUS 
690 1 0 |a NEW SPECIES 
690 1 0 |a ANTARCTICA 
690 1 0 |a LIVINGSTON ISLAND 
690 1 0 |a SOUTH SHETLAND ISLANDS 
690 1 0 |a CYATHEACEAE 
690 1 0 |a FILICOPHYTA 
690 1 0 |a THYRSOPTERIS ELEGANS 
773 0 |d 2013  |g v. 44  |h pp. 214-222  |p Cretaceous Res.  |x 01956671  |w (AR-BaUEN)CENRE-4335  |t Cretaceous Research 
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