Heitor Francischini

Universidade Federal do Rio Grande do Sul

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Paula Dentzien‐Dias

Universidade Federal do Rio Grande do Sul

César Leandro Schultz

Universidade Federal do Rio Grande do Sul

Agustín G. Martinelli

Bernardino Rivadavia Natural Sciences Museum

Marina Bento Soares

Universidade Federal do Rio Grande do Sul

Spencer G. Lucas

New Mexico Museum of Natural History and Science

Lorenzo Marchetti

Università Campus Bio-Medico

Marcelo Adorna Fernandes

Universidade Federal de São Carlos

Voltaire D. Paes Neto

Universidade Federal do Pampa

André Barcelos-Silveira

Universidade Federal do Rio Grande do Sul

Leonardo Kerber

Universidade Federal de Santa Maria

Cooperative Institutions

Universidade Federal do Rio Grande do Sul

Instituto de Geociencias

Universidade Federal do Rio Grande

Universidade Estadual Paulista (Unesp)

Universidade Federal do Rio de Janeiro

Consejo Nacional de Investigaciones Científicas y Técnicas

Universidade Federal do Triângulo Mineiro

Universidade de São Paulo

Centro Científico Tecnológico - Tucumán

Centro Científico Tecnológico - San Juan

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A MIDDLE PERMIAN (ROADIAN) LUNGFISH AESTIVATION BURROW FROM THE RIO DO RASTO FORMATION (PARANÁ BASIN, BRAZIL) AND ASSOCIATED U-Pb DATING

Palaios (2018)

Heitor Francischini Paula Dentzien‐Dias Margôt Guerra-Sommer Rualdo Menegat João Orestes Schneider Santos

Research Article| February 27, 2018 A MIDDLE PERMIAN (ROADIAN) LUNGFISH AESTIVATION BURROW FROM THE RIO DO RASTO FORMATION (PARANÁ BASIN, BRAZIL) AND ASSOCIATED U-Pb DATING HEITOR FRANCISCHINI; HEITOR FRANCISCHINI 1Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Porto Alegre, Caixa Postal 15.001, CEP 91501-970, Brazil Search for other works by this author on: GSW Google Scholar PAULA DENTZIEN-DIAS; PAULA DENTZIEN-DIAS 2Instituto de Oceanografia, Universidade Federal do Rio Grande, Avenida Itália Km 8, Rio Grande, CEP 96201-900, Brazil Search for other works by this author on: GSW Google Scholar MARGOT GUERRA-SOMMER; MARGOT GUERRA-SOMMER 1Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Porto Alegre, Caixa Postal 15.001, CEP 91501-970, Brazil Search for other works by this author on: GSW Google Scholar RUALDO MENEGAT; RUALDO MENEGAT 1Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Porto Alegre, Caixa Postal 15.001, CEP 91501-970, Brazil Search for other works by this author on: GSW Google Scholar JOÃO ORESTES SCHNEIDER SANTOS; JOÃO ORESTES SCHNEIDER SANTOS 3Centre for Global Targeting, University of Western Australia, 35 Stirling Highway, Perth, 6009, Australia Search for other works by this author on: GSW Google Scholar JOSELINE MANFROI; JOSELINE MANFROI 4Programa de Pós-Graduação em Ambiente e Desenvolvimento, Centro Universitário UNIVATES, Lajeado, CEP 95900-000, Brazil Search for other works by this author on: GSW Google Scholar CESAR LEANDRO SCHULTZ CESAR LEANDRO SCHULTZ 1Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Porto Alegre, Caixa Postal 15.001, CEP 91501-970, Brazil Search for other works by this author on: GSW Google Scholar Author and Article Information HEITOR FRANCISCHINI 1Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Porto Alegre, Caixa Postal 15.001, CEP 91501-970, Brazil PAULA DENTZIEN-DIAS 2Instituto de Oceanografia, Universidade Federal do Rio Grande, Avenida Itália Km 8, Rio Grande, CEP 96201-900, Brazil MARGOT GUERRA-SOMMER 1Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Porto Alegre, Caixa Postal 15.001, CEP 91501-970, Brazil RUALDO MENEGAT 1Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Porto Alegre, Caixa Postal 15.001, CEP 91501-970, Brazil JOÃO ORESTES SCHNEIDER SANTOS 3Centre for Global Targeting, University of Western Australia, 35 Stirling Highway, Perth, 6009, Australia JOSELINE MANFROI 4Programa de Pós-Graduação em Ambiente e Desenvolvimento, Centro Universitário UNIVATES, Lajeado, CEP 95900-000, Brazil CESAR LEANDRO SCHULTZ 1Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Porto Alegre, Caixa Postal 15.001, CEP 91501-970, Brazil email: heitorfrancischini@hotmail.com Publisher: SEPM Society for Sedimentary Geology First Online: 27 Feb 2018 Online Issn: 1938-5323 Print Issn: 0883-1351 Copyright © 2018, SEPM (Society for Sedimentary Geology) PALAIOS (2018) 33 (2): 69–84. https://doi.org/10.2110/palo.2017.050 Article history First Online: 27 Feb 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation HEITOR FRANCISCHINI, PAULA DENTZIEN-DIAS, MARGOT GUERRA-SOMMER, RUALDO MENEGAT, JOÃO ORESTES SCHNEIDER SANTOS, JOSELINE MANFROI, CESAR LEANDRO SCHULTZ; A MIDDLE PERMIAN (ROADIAN) LUNGFISH AESTIVATION BURROW FROM THE RIO DO RASTO FORMATION (PARANÁ BASIN, BRAZIL) AND ASSOCIATED U-Pb DATING. PALAIOS 2018;; 33 (2): 69–84. doi: https://doi.org/10.2110/palo.2017.050 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyPALAIOS Search Advanced Search Abstract The Permian Rio do Rasto Formation (Paraná Basin) crops out in southern Brazil and was deposited under fluvio-lacustrine settings. A singular outcrop located in the Aceguá municipality (Rio Grande do Sul State) represents a sequence of three distinct levels of paleosols in which rhizoliths and a single vertebrate burrow were recovered. The latter has a sub-vertical orientation, a slightly curved shape and a gross morphology and simple architecture that are consistent with aestivation burrows produced by lungfishes. The occurrence of this structure, in association with the features of the paleosols, indicates a seasonal climate with drought events. Additionally, a tonstein layer is interbedded in the paleosol sequence, indicating the influence of volcanic ash falls in the paleoenvironment. Zircons were collected from this level and dated using U-Pb techniques and the obtained age is 270.61 +1.76/-3.27 Ma (Roadian). The paleoenvironmental context of this outcrop is in accordance with a dry, seasonal climate of southwestern Pangaea during the early Guadalupian. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

Lungfish

Burrow

10.2110/palo.2017.050

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Citations (18)

Introduction to journal of South American Earth sciences special issue on “Ichnology through the Phanerozoic: A Latin America perspective”

Journal of South American Earth Sciences (2021)

Pablo J. Pazos Diana Elizabeth Fernández Heitor Francischini

Conodont

10.1016/j.jsames.2021.103540

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A new actinomycete from a Guadalupian vertebrate coprolite from Brazil

Historical Biology (2016)

Paula Dentzien‐Dias George O. Poinar Heitor Francischini

Coprolites (fossil feces) are important sources of evidence of ancient food webs and ecosystems. Actinomycetes are a fundamental component in the decay of organic matter, and serve as catalysts for nutrient cycles. Recently, gas vesicles filled with numerous verrucose colonies of substrate mycelium of an actinomycete were discovered inside a fossilized spiral amphipolar fish coprolite recovered from mid–Permian deposits of Brazil. These colonies are composed of masses of substrate hyphae, some of which are undergoing segmentation. Arising from the colonies are chains of spores separated by narrow, elongate connectives. The fossil actinomycete is described below as Palaeostromatus diairetus gen. et sp. nov. and represents the oldest known actinomycete associated with vertebrate deposits. Since the colonies occur only inside the coprolite, either Palaeostromatus diairetus gen. et sp. nov. was part of the gut flora or it was acquired from a food source. The only other remains in the coprolite are eighteen paleoniscoid fish scales, which suggests that the producer was a carnivorous/omnivorous fish. This is the oldest record of a direct interaction between vertebrates and actinomycetes.

Vertebrate paleontology

Tetrapod (structure)

10.1080/08912963.2016.1241247

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Citations (19)

New dinosaur remains and the tetrapod fauna from the Upper Cretaceous of Mato Grosso State, central Brazil

Historical Biology (2017)

Marcos A. F. Sales Agustín G. Martinelli Heitor Francischini Rogério R. Rubert Leonardo P. Marconato

Mato Grosso State is the main area of paleontological investigations in central Brazil, especially regarding Upper Cretaceous beds. Fossil collection in the surroundings of the Morro do Cambambe started as early as late nineteenth century, but prospections and studies are still ongoing. This contribution presents new dinosaur specimens recovered from Upper Cretaceous outcrops of the southeastern portion of Mato Grosso State. These remains enabled the first report of a megaraptoran theropod based on a vertebral centrum and the description of abelisaurid (a fragmentary tooth) and titanosaur remains (a tooth and a fragment of a dorsal vertebra). Based on the amount of compiled reports of tetrapod remains from Mato Grosso, mainly from meeting abstracts and technical reports, the evidence at hand indicates a diverse Upper Cretaceous tetrapod assemblage still poorly explored in comparison to other Upper Cretaceous units of Brazil and Gondwana, in general.

Tetrapod (structure)

Outcrop

Chondrichthyes

10.1080/08912963.2017.1315414

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Citations (16)

A large-sized mammalian coprolite containing ground sloth osteoderms from the Upper Pleistocene Touro Passo Formation of Brazil

Journal of South American Earth Sciences (2023)

T. Jacob T. Jacob Débora Diniz Leonardo Kerber Paula Dentzien‐Dias Heitor Francischini

Sloth

Carnivore

Megafauna