Eventos biológicos da Formação Pirabas (Mioceno Inferior)

Távora, Vladimir de Araújo; Santos, André Augusto Rodrigues dos; Neto, Ignácio de Loiola Alvares Nogueira

doi:10.25249/0375-7536.2010402256264

Cited by 14 publications

(22 citation statements)

References 12 publications

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“…marinhos ou dulcícolas, de águas rasas ou profundas etc). Como todos os grupos fósseis desta formação têm representantes viventes, as necessidades ecológicas de cada um foram fornecidas a partir das formas atuais, tendo como base o Princípio do Atualismo, que pressupõe que o presente é a chave para o passado (TEIXEIRA et al, 2000), ou seja, que o modo de vida dos animais fósseis seria similar ao das formas atuais. Ao final do desafio, espera-se que os alunos reconheçam que aquele bloco de rocha, devido à diversidade de animais preservados e às necessidades ecológicas destes, tenha sido formado num ambiente marinho, próximo ao continente, de águas rasas, quentes e límpidas.…”

Section: Atividades Propostasunclassified

Kit paleontológico: um material didático com abordagem investigativa

Bergqvist¹,

Prestes²

2014

Ciênc. educ. (Bauru)

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Resumo: Neste trabalho apresentamos um kit para aulas práticas que possibilitará, aos estudantes do Ensino Fundamental, conhecer mais sobre a Paleontologia e compreender a utilidade dos fósseis para a interpretação dos ambientes pretéritos e para a datação das camadas sedimentares. A quase totalidade das escolas do Ensino Fundamental II não dispõe de material para aulas práticas sobre temas relacionados à Paleontologia. O kit consiste em réplicas de fósseis brasileiros e de uma cartilha com as informações necessárias para o desenvolvimento das atividades práticas. Com esse intuito, foram utilizadas réplicas de fósseis procedentes da Bacia de Itaboraí, no estado do Rio de Janeiro, de idade paleocênica, e um bloco de rochas da Formação Pirabas, nos estados do Maranhão, Piauí e Pará, de idade miocênica. Este material também representa uma forma de divulgar a paleontologia brasileira e desmistificar o uso de fósseis de dinossauro como recurso único no ensino e divulgação da Paleontologia.Palavras-chave: Ensino Fundamental. Material didático-instrucional. Paleontologia. Divulgação científica. Abstract:In this work we present a kit for laboratory classes for Junior High schools students seeking to teach them more about paleontology and the importance and usefulness of fossils to identify past environments and dating of the sedimentary layers. Almost all Junior High schools do not have satisfactory material for laboratory classes on topics related to Paleontology. The kit consists of replicas of Brazilian fossils and a booklet with the necessary information for the practical activities. For this purpose we used replicas of fossils coming from Itaboraí Basin, Rio de Janeiro state, of Paleocene age, and a block of rock from Pirabas Formation, Maranhão, Piauí and Pará States, of Miocene age. This material is also a way to spread the knowledge Brazilian paleontology and demystify the use of dinosaur fossils as the unique source of paleontological teaching and dissemination.

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Section: Atividades Propostasunclassified

Kit paleontológico: um material didático com abordagem investigativa

Bergqvist¹,

Prestes²

2014

Ciênc. educ. (Bauru)

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“…Many plant remains were also identified along the coastal deposits of the Pirabas Formation (Toledo 1989;Arai 1997;Leite et al 1997a, b;Fernandes 1984;Távora et al 2010), suggesting deposition in a tidal flat and lagoon environments (Rossetti 2006;Rossetti and Santos 2004). Leite et al (1997a, b) proposed that the paleovegetation of the Pirabas Formation is marked by the predominance of Zonocostites ramonae Gemeraad et al 1968, a Miocene species that inhabited mangrove-type environments.…”

Section: Introductionmentioning

confidence: 99%

“…There are at least 27 outcrop localities recorded from the Pirabas Formation (Távora et al 2010). However, the exposures are restricted in thickness to a few meters along the tidal zone.…”

Section: Introductionmentioning

confidence: 99%

“…The heterotrophic carbonate producers, such as mollusks, echinoids and bryozoans, were abundant and diverse in the Pirabas Formation (Rossetti and Góes 2004;Távora et al 2010;Aguilera and Páes 2012). Oligotrophic corals are absent, except for isolated records of Agariciidae (Lalor and Távora 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Early contributions of White (1887) and Maury (1925), particularly on mollusk, bryozoan and coral research, and Petri (1954Petri ( , 1957 on foraminifera, Beurlen (1958), Brito (1971Brito ( , 1972Brito ( , 1977 and Martins-Neto (2001) on crustaceans, Santos (1958Santos ( , 1967 on echinoids, Santos and Travassos (1960) and Santos and Salgado (1971) on fishes, Paula-Couto (1967), Toledo (1989), and Toledo and Domning (1989) about sirenians, and Lalor and Távora (2006) on corals, as well as many further references summarized in Rossetti and Góes (2004) and in Távora et al (2010), provide additional descriptions, records and/or reviews of different fossils groups from the Pirabas Formation.…”

Section: Introductionmentioning

confidence: 99%

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Erratum to: Neogene eastern Amazon carbonate platform and the paleoenvironmental interpretation

2014

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The Early Miocene Pirabas Formation represents extensive carbonate and siliciclastic belts deposited in marine coastal environments along the eastern Amazon coast. This formation was studied in its palynological, crustacean decapods and sedimentary facies, to develop a model of its depositional processes, faunal and floral assemblages and the sedimentary environments, as observed in the B17 mine (Capanema, Pará). The sedimentary records consist mostly of light gray to greenish gray mudstones with tidal bedding, calciferous sandstones, stratified biocalcirudites and levels with conglomerates deposited in a carbonate/siliciclastic transitional system with lagoon, tidal flat, flood-tide delta and foreshore environments. 18 palynomorph species were identified in the tidal flat deposits including one alga, five pteridophytes and nine angiosperms. Among the latter, mangrove pollen and spores of Zonocostites ramonae, Zonocostites minor and Deltoidospora adriennis are reported. Nine species of crustacean decapods were recognized in the foreshore deposits, comprising one Callianassoidae, two Calappidae and six Portunidae, represented by Euphylax, Necronectes, Portunus and Scylla, the ecology of which is associated with beaches of marginal lagoons. The main factor in the formation of these carbonate environments is assumed to have been related to the lack of a large-scale drainage system such as the Amazon River basin in the transition Oligocene-Miocene, which may also have influenced carbonate production and resulted in a strong decrease of paleodischarges from incipient river systems along the Amazon coast.

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Sharks, rays and skates (Chondrichthyes, Elasmobranchii) from the Upper Marine Molasse (middle Burdigalian, early Miocene) of the Simssee area (Bavaria, Germany), with comments on palaeogeographic and ecological patterns

Villafaña

Marramà

Klug

et al. 2020

PalZ

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Elasmobranch remains are quite common in Miocene deposits and were the subject of numerous studies since the middle of the nineteenth century. Nevertheless, the taxonomic diversity of the Marine Molasse sharks, rays and skates is still largely unknown. Here, we describe 37 taxa from the lower Miocene of the Molasse Basin: 21 taxa could be identified at species level, whereas 15 taxa could only be assigned to genus and one taxon is left as order incertae sedis. The material was collected from deposits of the Auwiesholz Member of the Achen Formation (middle Burdigalian, middle Ottnangian age, ca. 17.8 Ma) exposed near Simssee, Upper Bavaria. This faunal assemblage is a mixture of shallow marine, near-coastal, pelagic and deep-water taxa. The fauna from Simssee displays different biogeographic dynamics at local and regional scales, possibly related to the intense climatic, oceanographic and tectonic events that occurred during the Eggenburgian–Ottnangian stages. The faunal relationships of the early Miocene chondrichthyan faunas from the Mediterranean Sea and Paratethys with others regions are established on the basis of qualitative (presence/absence) data. The beta diversity (Sørensen–Dice coefficient) of the Miocene Molasse elasmobranchs was used to characterize the taxonomic differentiation between localities and regions. According to our results, the fauna from Simssee shows close similarities with those from Switzerland, Austria, France and northern Germany. Faunal similarities and differences are mainly related to tectonic events and oceanographic variables (i.e. migration through seaway passages) or might represent collecting biases.

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Eventos biológicos da Formação Pirabas (Mioceno Inferior)

Cited by 14 publications

References 12 publications

Kit paleontológico: um material didático com abordagem investigativa

Kit paleontológico: um material didático com abordagem investigativa

Erratum to: Neogene eastern Amazon carbonate platform and the paleoenvironmental interpretation

Sharks, rays and skates (Chondrichthyes, Elasmobranchii) from the Upper Marine Molasse (middle Burdigalian, early Miocene) of the Simssee area (Bavaria, Germany), with comments on palaeogeographic and ecological patterns

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