Paleoecologic trends of Devonian Malvinokaffric fauna from the Paraná Basin as evidenced by trace fossils

Sedorko, Daniel; Netto, Renata Guimarães; Scheffler, Sandro Marcelo; Horodyski, Rodrigo Scalise; Bosetti, Elvio Pinto; Ghilardi, Renato Pirani; Mauller, Paula Mendlowicz; Vargas, Mateus Rodrigues de; Videira-Santos, Roberto; Silva, Rafael Costa da; Myzynski-Junior, Lucinei

doi:10.1016/j.jsames.2021.103200

Cited by 35 publications

(20 citation statements)

References 54 publications

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“…[24]. The specimens studied are abundant and occur associated with some elements of the Malvinokaffric biota such as brachiopods and trilobites [26,27]. Details regarding its stratigraphic distribution are available in the electronic supplementary material.…”

Section: Resultsmentioning

confidence: 99%

“…These fossils are common in Lower Givetian strata ( post-Kacák event), although they are preserved in Eifelian strata, mostly in sections B and C of Sedorko et al [24]. The specimens studied are abundant and occur associated with some elements of the Malvinokaffric biota such as brachiopods and trilobites [26,27]. Details regarding its stratigraphic distribution are available in the electronic supplementary material.…”

Section: (A) Occurrence Morphology and Ecologymentioning

confidence: 99%

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Devonian agglutinated polychaete tubes: all in all it's just another grain in the wall

et al. 2021

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Biomineralized and organic metazoan tubular skeletons are by far the most common in the fossil record. However, several groups of organisms are also able to agglutinate particles to construct more rigid structures. Here we present a novel type of agglutinated tube from the austral and endemic palaeobiota of the Malvinokaffric realm (Devonian, Brazil). This fossil is characterized by an agglutinated tube made of silt-sized particles forming an unusual flanged morphology that is not known from the fossil record. Besides being able to select specific particles, these organisms probably lived partially buried and were detritus/suspension feeders. Comparisons across different modern groups show that these fossils are strongly similar to tubes made by polychaetes, specifically from the family Maldanidae. If this interpretation is correct, then an early divergence of the Sedentaria clade may have occurred before the Devonian.

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Section: Resultsmentioning

confidence: 99%

Section: (A) Occurrence Morphology and Ecologymentioning

confidence: 99%

Devonian agglutinated polychaete tubes: all in all it's just another grain in the wall

et al. 2021

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“…As amostras procedem de nove afloramentos situados no Mato Grosso do Sul (Tab. 2, datum WGS 84; para correlação e perfis ver Scheffler, Silva & Sedorko, 2020;Silva, 2020;Sedorko et al, 2021), detalhados a seguir:…”

Section: Materiais E Métodosunclassified

The Devonian Discinids of the Northwest Edge of the Paraná Basin (Ponta Grossa Formation, Mato Grosso do Sul), Brazil

Silva¹,

Comniskey²,

Scheffler³

2021

TerraPlural

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In Brazil, discinid brachiopods are found abundantly in the Devonian strata of the Paraná Basin, on the northwest and east edges. This work aims to describe species of discinids from the state of Mato Grosso do Sul, Brazil, at the northwest edge, that is lesser studied. Five taxa of discinids were recognized: Orbiculoidea baini, Orbiculoidea bodenbenderi, Orbiculoidea excentrica, Gigadiscina collis, and Rugadiscina sp. This paper expands the knowledge of the distribution of the discinids in the Devonian of Brazil, showing its high representativeness in Mato Grosso do Sul, especially during the Pragian-early Emsian.

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“…The Ponta Grossa Formation is characterized as a predominantly shale unit representing marine paleoenvironment, as attested by their rich paleofauna included in the context of the Malvinokaffric Realm (Richter, 1941). When compared to Furnas Formation, trace fossils from these deposits were mostly studied after 2000 (Tognoli et al, 2002;Netto, Tognoli & Gandini, 2012;Netto et al, 2014;Sedorko, Bosetti & Netto, 2018a;Sedorko, Netto & Savrda, 2018b;Sedorko, Netto & Horodyski, 2018c;2019;Sedorko et al, 2021;Bosetti et al, 2021), although early studies had been conducted before 2000 (Campanha, 1985;Fernandes, 1996). Recent updates to the Devonian strata of the Paraná State have identified expressions of Glossifungites, Skolithos, and Cruziana ichnofacies (Sedorko, Bosetti & Netto, 2018a).…”

Section: Ponta Grossa Formationmentioning

confidence: 99%

“…The early records of trace fossils for the Silurian-Devonian strata of Paraná State were made by Oliveira (1912), Clarke (1913), and Lange (1942), with references to the presence of "tubes of worms" for the Furnas and Ponta Grossa formations. However, ichnologic studies in that units were more frequent in the literature between the 1980s and 1990s (Ciguel & Aceñolaza, 1986;1989;Campanha, 1985;Fernandes & Melo, 1985;Assine, 1996;Fernandes, 1996), although recent studies are available in the literature (Netto, Tognoli, Assine & Nara, 2014;Sedorko et al, 2017, Sedorko, Bosetti & Netto, 2018aSedorko, Netto & Savrda 2018b;Sedorko, Netto & Horodyski, 2018c, 2019Sedorko et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Ichnological Research of Silurian–Devonian Strata and the Zoophycos Distribution in the Paraná Basin

2021

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The Silurian–Devonian strata of the Paraná Basin (southern Brazil) have a wide variety of ichnofossils. The first records date from the beginning of the last century, with pioneering studies in 1912 addressing the Furnas and Ponta Grossa formations. Significant advances in the ichnological knowledge of these units occurred between the 1980s and 1990s, emphasizing ichnotaxonomic characterizations. These ichnological studies were important for better understanding and describing the main depositional environments, ecological strategies, biostratigraphy, and the relation with the preserved paleofauna. In this contribution, we review this knowledge and analyze the distribution and paleoecological significance of Zoophycos, the most remarkable ichnotaxon in the Lower Paleozoic beds of the Paraná Basin.

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Paleoecologic trends of Devonian Malvinokaffric fauna from the Paraná Basin as evidenced by trace fossils

Cited by 35 publications

References 54 publications

Devonian agglutinated polychaete tubes: all in all it's just another grain in the wall

Devonian agglutinated polychaete tubes: all in all it's just another grain in the wall

The Devonian Discinids of the Northwest Edge of the Paraná Basin (Ponta Grossa Formation, Mato Grosso do Sul), Brazil

Ichnological Research of Silurian–Devonian Strata and the Zoophycos Distribution in the Paraná Basin

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