Nova briófita do Carbonífero inferior da Bolívia

Cardoso, Nelsa

doi:10.4072/rbp.2004.2.03

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…metzgerioides Walton, 1928), all dating to the Carboniferous (Table 2). Two species are known from Gondwana: H umariensis Chandra, 1995 (from the Permian in India) and H simpliciformis Cardoso and Iannuzzi, 2004 (from the Carboniferous in Bolivia). The material studied here is different from those species however, since here they are smaller and have more branchings.…”

Section: Discussionmentioning

confidence: 99%

Hepaticites iporangae n. sp., Rio Bonito Formation, Early Permian (Sakmarian), Paraná Basin, Brazil, Western Gondwana

et al. 2011

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The formal description of a liverwort from the Paraná Basin is presented. The fossil was found in the Rio Bonito Formation, Early Permian (Sakmarian), and is identified as a new species of the genus Hepaticites, named H. iporangae n. sp. The samples studied were collected from the macrofossil-rich roof-shale layer of the Quitéria Outcrop in the municipality of Encruzilhada do Sul, state of Rio Grande do Sul, Brazil. H. iporangae is one of the oldest liverworts reported from South America. The fossil described here provides more evidence of the relative diversity of liverworts in Paleozoic Gondwana despite the severe climatic conditions during the glaciations of the Permo-Carboniferous.

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Section: Discussionmentioning

confidence: 99%

Hepaticites iporangae n. sp., Rio Bonito Formation, Early Permian (Sakmarian), Paraná Basin, Brazil, Western Gondwana

et al. 2011

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“…Marchantites hallei Lundblad (Lundblad, 1955), a thalloid liverwort from the Early Cretaceous of Argentina, is the only other unequivocal fossil liverwort known from South America (Oostendorp, 1987; Tomescu et al, 2018). However, three additional compression fossils from the Carboniferous of Bolivia and the Mesozoic of Argentina that lack cellular detail have also been compared with thalloid liverworts (Jain & Delevoryas, 1967; Cardoso & Iannuzzi, 2004; Coturel & Savoretti, 2018).…”

Section: Discussionmentioning

confidence: 99%

Fossil fern rhizomes as a model system for exploring epiphyte community structure across geologic time: evidence from Patagonia

Bippus

Escapa

Wilf

et al. 2019

PeerJ

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BackgroundIn extant ecosystems, complex networks of ecological interactions between organisms can be readily studied. In contrast, understanding of such interactions in ecosystems of the geologic past is incomplete. Specifically, in past terrestrial ecosystems we know comparatively little about plant biotic interactions besides saprotrophy, herbivory, mycorrhizal associations, and oviposition. Due to taphonomic biases, epiphyte communities are particularly rare in the plant-fossil record, despite their prominence in modern ecosystems. Accordingly, little is known about how terrestrial epiphyte communities have changed across geologic time. Here, we describe a tiny in situ fossil epiphyte community that sheds light on plant-animal and plant-plant interactions more than 50 million years ago.MethodsA single silicified Todea (Osmundaceae) rhizome from a new locality of the early Eocene (ca. 52 Ma) Tufolitas Laguna del Hunco (Patagonia, Argentina) was studied in serial thin sections using light microscopy. The community of organisms colonizing the tissues of the rhizome was characterized by identifying the organisms and mapping and quantifying their distribution. A 200 × 200 µm grid was superimposed onto the rhizome cross section, and the colonizers present at each node of the grid were tallied.ResultsPreserved in situ, this community offers a rare window onto aspects of ancient ecosystems usually lost to time and taphonomic processes. The community is surprisingly diverse and includes the first fossilized leafy liverworts in South America, also marking the only fossil record of leafy bryophyte epiphytes outside of amber deposits; as well as several types of fungal hyphae and spores; microsclerotia with possible affinities in several ascomycete families; and evidence for oribatid mites.DiscussionThe community associated with the Patagonian rhizome enriches our understanding of terrestrial epiphyte communities in the distant past and adds to a growing body of literature on osmundaceous rhizomes as important hosts for component communities in ancient ecosystems, just as they are today. Because osmundaceous rhizomes represent an ecological niche that has remained virtually unchanged over time and space and are abundant in the fossil record, they provide a paleoecological model system that could be used to explore epiphyte community structure through time.

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“…Comparaciones. Este espécimen se asemeja a la especie Hepaticites simpliciformis Cardoso y Iannuzzi 2004, proveniente del Carbonífero inferior de Bolivia (Cardoso y Iannuzzi, 2004). Estos autores propusieron que esta especie fósil se aproxima mucho a las hepáticas actuales, en especial a los representantes del orden Metzgeriales.…”

Section: Materials Estudiado Mhin-unsl-geo-p616unclassified

Asociación de Briofitas de la Formación la Cantera, Aptiano Tardío, Cuenca de San Luis, Argentina

2012

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Se ilustran y describen esporas de los géneros Aequitriradites (Delcourt y Sprumont) emend. Cookson y Dettmann y Couperisporites Pocock, junto a diversos morfotipos vegetales correspondientes a Bryophyta, recuperadas de los mismos niveles fosilíferos, aunque no en conexión orgánica. Como resultado de este nuevo análisis de la asociación vegetal fósil obtenida (esporas dispersas y macrorrestos), se deduce un evidente predominio de esporas y megaflora con afinidad a las hepáticas, entre las briofitas. La ocurrencia de esporas y macrorrestos en los mismos sedimentos, pertenecientes al grupo de las hepáticas, y musgos, es indicativa del desarrollo in situ (no hay evidencias de transporte) de este grupo de plantas bajo condiciones de humedad local, relacionadas a un cuerpo de agua dulce en este sector de la Cuenca de San Luis, durante el Aptiano tardío.

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Nova briófita do Carbonífero inferior da Bolívia

Cited by 7 publications

References 7 publications

Hepaticites iporangae n. sp., Rio Bonito Formation, Early Permian (Sakmarian), Paraná Basin, Brazil, Western Gondwana

Hepaticites iporangae n. sp., Rio Bonito Formation, Early Permian (Sakmarian), Paraná Basin, Brazil, Western Gondwana

Fossil fern rhizomes as a model system for exploring epiphyte community structure across geologic time: evidence from Patagonia

Asociación de Briofitas de la Formación la Cantera, Aptiano Tardío, Cuenca de San Luis, Argentina

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