New records of Devonian plants from southern Victoria Land, Antarctica

McLoughlin, Stephen; Long, John A.

doi:10.1017/s0016756800010517

Cited by 33 publications

(21 citation statements)

References 20 publications

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“…4; Table 1) shows that this genus was most common in South America, Scotese et al (1985) and with some record of Haplostigma based on Edwards (1990). For locality numbers see Table 1 Lycopsids from the Upper Devonian of northern Chile 237 but it has also been described from the Antarctic (Plumstead 1962;Grindley et al 1980;McLoughlin and Long 1994), South Africa (Anderson and Anderson 1985) and Australia (Walkom 1928 (Morel and Gutiérrez 2000). Malanzania nana has previously been described with certainty only from the Middle-Upper Carboniferous of Argentina, namely the Malanzán, El Trampadero and Jejenes formations (Archangelsky et al 1981), the Guandacol Formation (Cesari et al 1989) and most recently from the Claromecó Basin (Morel and Gutiérrez 2000).…”

Section: Discussionmentioning

confidence: 96%

“…with spine-like appendages and no true leaves. This has been done for Devonian material from all over Gondwana (Plumstead 1967;McLoughlin and Long 1994;Gutiérrez 1996;Gutiérrez and Archangelsky 1997;Cingolani et al 2002;Di Pasquo et al 2009). …”

Section: Discussionmentioning

confidence: 99%

“…Malanzania has subsequently also been described from the Middle Devonian of Antarctica (McLoughlin and Long 1994) and the Falkland Islands (Archangelsky 1983), and from the Upper Carboniferous in Argentina (Morel and Gutiérrez 2000).…”

Section: Introductionmentioning

confidence: 99%

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Lycopsids from the Upper Devonian of northern Chile with remarks on the geographical distribution of the morphogenus Haplostigma Seward

2011

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We here present the first systematic description of Devonian plant fossils from Chile. The material was collected from the Upper Devonian El Toco Formation in the Coastal Cordillera of northern Chile. Plant fossils occur as impressions of lycopsid axes in marine turbiditic greywacke beds and comprise Haplostigma furquei (Frenguelli) Gutiérrez, Malanzania cf. nana Archangelsky, Azcuy and Wagner, and further unidentifiable remains. The biostratigraphic ranges of these taxa agree well with previous age assessments for this sequence, based on conodonts and radiometric data. Haplostigma was widely distributed in the middle-to-high latitude, cool-temperate biome of southern Gondwana, providing further evidence that Middle to Late Devonian extra-tropical floras of Gondwana were dominated by low-diversity associations of herbaceous lycopsids.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

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Lycopsids from the Upper Devonian of northern Chile with remarks on the geographical distribution of the morphogenus Haplostigma Seward

2011

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“…Plumstead, 1967;Anderson & Anderson, 1985;McLoughlin & Long, 1994), and therefore, despite the profusion of form genera and species, these plants cannot be attributed to well-founded genera which are recognized on the basis of leaf morphology. There are two exceptions: firstly, a stem fragment with attached leaves from Port Alfred, Kowie, South Africa, which, although the leaves are broken, is very similar to Colpodexylon (Seward, 1903(Seward, , 1909Berry, 1997); and secondly, a stem fragment from Brazil, the leaves of which were originally described as shaped like tuning forks named Protolepidodendron kegeli (Kräusel & Dolianiti, 1957) but which bears much resemblance to Colpodexylon and deserves reinvestigation (Berry & Edwards, 1995).…”

Section: Palaeogeographic Significancementioning

confidence: 99%

Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)

et al. 2002

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-Fossil plants are described from the upper part of the Devonian Lolén Formation, Sierra de la Ventana, Buenos Aires Province, Argentina, in the area of Estancia Las Acacias. The sequence is composed mainly of dark grey shales, and fossils were found in a single horizon where thin interlayered beds of fine reddish-brown micaceous sandstones appear where the environment of marine deposition became more shallow. The age of the Lolén Formation is presently established on the basis of brachiopods, these being characteristic elements of the Malvinokaffric realm from the Gondwana Lower Devonian (Emsian). The fossil plants are remarkably preserved given that they are in rocks that have undergone intense deformation. The plants are identified as Haplostigma sp. and Haskinsia cf. H. colophylla, and suggest a Middle Devonian age (Givetian) for the fossil-bearing levels. Haskinsia, identified on the basis of leaf morphology, is the first well-delimited Middle Devonian lycopsid genus described from Argentina, and the record from the most southerly palaeolatitude. During the Middle Devonian, Haskinsia was distributed in tropical, warm temperate and high southern latitude, ?cool temperate zones.

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“…Neste sentido, os autores têm utilizado o referido táxon como um morfogênero para caules de licófitas herbáceas com apêndices espiniformes ocorrentes no Devoniano do Gondwana (PLUMSTEAD, 1967;MCLOUGHLIN & LONG, 1994;GUTIÉRREZ, 1996;GUTIÉRREZ & ARCHANGELSKY, 1997;CINGOLANI et al, 2002;DI PASQUO et al, 2009;MOISAN et al, 2011), transformando-o em um saco de gatos taxonômico. …”

Section: Haplostigmaunclassified

Histórico e evolução do conhecimento sobre a paleoflora do Devoniano na Bacia do Paraná

2013

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Resumo: Nos últimos anos, a execução de trabalhos de campo no município de Tibagi-PR tem possibilitado a prospecção de fitofósseis bem preservados na Formação São Domingos (Bacia do Paraná), resgatando o interesse científico da paleobotânica nesta unidade. O presente trabalho objetivou caracterizar a evolução do conhecimento sobre a paleoflora devoniana da Bacia do Paraná, com base no histórico das pesquisas no Brasil e apresentar as perspectivas futuras a partir de novos achados em seções recentemente levantadas do Devoniano Médio no estado do Paraná. Foram identificados e descritos três táxons ocorrentes nos afloramentos Sítio Wolff e Itáytyba (Formação São Domingos), a saber: Spongiophyton, Palaeostigma e Haplostigma. A continuidade das pesquisas com este material fóssil pode colaborar na compreensão dos estudos evolutivos e paleoecológicos das plantas, além de fornecer dados relevantes para interpretações dos sistemas deposicionais e reconstituições paleofitogeográficas. Palavras-chave:Paleobotânica. Bacia do Paraná. Formação São Domingos. Devoniano.Abstract: Currently, the fieldwork developed in the Tibagi municipality, Paraná state, have enabled the prospection of phytofossils preserved in the São Domingos Formation (Paraná Basin), bringing back the scientific interest of paleobotany on this unit. The present study aimed to characterize the evolution of knowledge about Devonian paleoflora of the Paraná Basin, based on the history of research in Brazil and present future perspectives from new findings in sections recently described in the Middle

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New records of Devonian plants from southern Victoria Land, Antarctica

Cited by 33 publications

References 20 publications

Lycopsids from the Upper Devonian of northern Chile with remarks on the geographical distribution of the morphogenus Haplostigma Seward

Lycopsids from the Upper Devonian of northern Chile with remarks on the geographical distribution of the morphogenus Haplostigma Seward

Middle Devonian lycopsids from high southern palaeolatitudes of Gondwana (Argentina)

Histórico e evolução do conhecimento sobre a paleoflora do Devoniano na Bacia do Paraná

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