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Mostrando ítems 1-10 de 13
Plumsteadia pedicellata sp. nov.: A new glossopterid fructification from La Golondrina Formation (Guadalupian-Lopingian), Santa Cruz Province, Argentina
(Elsevier Science, 2009-09)
A new specimen of glossopterid fructification - Plumsteadia pedicellata - from the Permian of La Golondrina Basin, in Santa Cruz Province, Argentina, is described. The fructification has ?ovule scars, and is attached to a ...
Plant-insect interactions in a glossopteris flora from the la golondrina formation (Guadalupian-Lopingian), Santa Cruz Province, Patagonia, Argentina
(Asociacion Paleontologica Argentina, 2011-03)
Se presenta aquí la primera descripción de daño de insecto en una flora de Glossopteris del Pérmico de Argentina (Formación La Golondrina, Santa Cruz). Se describen 4 ejemplares de hojas de Glossopteris referidas a G. ...
The lycophytes of the La Golondrina Formation (Permian), Santa Cruz Province, Argentina: Systematic revision, biostratigraphy and palaeoecology
(Taylor & Francis, 2012-12)
The Permian lycophytes of the La Golondrina Formation (Santa Cruz province, Argentina) have remained unstudied for almost 50 years. This study reviews material described by Archangelsky in 1960 and increases the representation ...
Patterns of insect-mediated damage in a Permian Glossopteris flora from Patagonia (Argentina)
(Elsevier Science, 2018-10-15)
A total of 2523 fossil plant specimens from the La Golondrina Formation (Permian, Santa Cruz Province, Argentina) were examined in order to assess the diversity, frequency and representation of insect damage. Although no ...
New Glossopterid Polysperms from the Permian La Golondrina formation (Santa Cruz province, Argentina): potential affinities and biostratigraphic implications
(Sociedade Brasileira de Paleontologia, 2015-09)
Impression fossils of ovuliferous fructifi cations from the Permian La Golondrina Formation in Santa Cruz, Argentina, are described, their affi nities compared, and fi nally, assigned to the Arberiaceae (Glossopteridales). ...
Variables que afectan el peso de los huevos en la golondrina Ceja Blanca (Tachycineta Leucorrhoa)Variables affecting egg mass of White-rumped Swallow (Tachicyneta Leucorrhoa)
(Asociación Ornitológica del Plata, 2010-01)
Los recursos que asignan las hembras a sus huevos pueden tener importantes consecuencias en la vida de los pichones. La condición física de las hembras, la abundancia de alimento, las condiciones ambientales, la cantidad ...
Edad y rasgos petrográficos y geoquímicos de cuerpos subvolcánicos asignables a la Formación Cerro León, este del Macizo del Deseado, Santa CruzAge and petrography and geochemistry features of subvolcanic outcrops from Cerro León Formation, east of the Deseado Massif, Santa Cruz
(Sociedad Geológica Argentina, 2004-08)
Se presentan nuevos afloramientos de cuerpos subvolcánicos correlacionables con la Formación Cerro León en el sector oriental del Macizo del Deseado. Esta unidad aflora en dos sectores, en el bajo Leonardo y en el afloramiento ...
Kladistamuos golondrinensis nov. gen. et comb., a fertile foliage from the mid to late Permian of Patagonia, Argentina
(Elsevier, 2013-09)
Dichotomous rachises bearing Eremopteris golondrinensis Archangelsky foliage in organic connection with probable microsporangiate structures were collected in the mid to late Permian La Golondrina Formation at Laguna ...