Pennsylvanian conodonts from the Tapajós Group (Amazonas Basin, Brazil)

Cardoso, Cassiane Negreiros; Sanz-López, Javier; Blanco-Ferrera, Silvia

doi:10.1016/j.geobios.2017.02.004

Cited by 8 publications

(6 citation statements)

References 32 publications

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“…In several studies of Lower to Middle Pennsylvanian conodonts (e.g., Ellison 1941;Dunn 1970a;Lane et al 1970;Lane & Straka 1974;Nemyrovska 1999;Fohrer et al 2007;Nemyrovska et al 2011;Sungatullina 2014;Qi et al 2015;Hu et al 2016;Cardoso et al 2017a;Barrick et al 2013), and as our assemblages, the coexistence and grouping of morphotypes in one or more stratigraphic levels ranging from the Morrowan to the Atokan are commonly documented in several localities of North America, South America as well as from the Bashkirian to the Moscovian in Europe. For example, Dunn (1970a;1970b) reports that the Bird Spring and Ely Limestone formations in Nevada, Round Valley Formation in Utah, and Bloyd Formation in Oklahoma include the coexistence of Adetognathus lautus, Idiognathoides convexus and Streptognathodus parvus within the Streptognathodus parvus -Adetognathus spathus Zone, which indicates a middle-upper Morrowan age.…”

Section: Biostratigraphic Considerationsmentioning

confidence: 69%

“…For example, Dunn (1970a;1970b) reports that the Bird Spring and Ely Limestone formations in Nevada, Round Valley Formation in Utah, and Bloyd Formation in Oklahoma include the coexistence of Adetognathus lautus, Idiognathoides convexus and Streptognathodus parvus within the Streptognathodus parvus -Adetognathus spathus Zone, which indicates a middle-upper Morrowan age. The coexistence of Adetognathus lautus and Streptognathodus parvus can also be recognized in the Itaituba Formation from the Tapajos Group in the Amazonia Basin (Cardoso et al 2017a). On the other hand, Idiognathodus corrugatus and Id.…”

Section: Biostratigraphic Considerationsmentioning

confidence: 97%

“…Thompson & Lambert 2017;Barrick et al 2022), South America (e.g. Cardoso et al 2017a), Ukraine (e.g. Nemyrovska 1999), and Russia (e.g.…”

Section: Biostratigraphic Considerationsmentioning

confidence: 99%

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Pennsylvanian Conodonts and Microfacies From Northeastern Mexico (Tamatán Group, Ciudad Victoria Block)

CASAS-PEÑA,

NAVAS-PAREJO,

JENCHEN

et al. 2024

RIPS

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The biostratigraphic analysis of the Paleozoic sedimentary successions in Mexico is crucial for understanding their age, depositional setting, and paleogeographic implications. This study examined conodonts and microfacies of calcareous strata within the Del Monte Formation of the Tamatán Group in northeastern Mexico. Field observations have led to the identification of three units within the Del Monte Formation: Unit 1, characterized by calcareous sandstone, bioclastic limestone, shale, occasional conglomerate, and dolomitized beds; Unit 2, consisting of conglomerate and/or breccia associated with debris flows; and Unit 3 including turbiditic sandstone and shale. Conodonts were only recognized in Unit 1, with such genera as Idiognathoides, Neognathodus, Idiognathodus and less frequently, Streptognathodus, Adetognathus, and Diplognathodus. The faunal associations include Idiognathoides cf. Id. corrugatus Harris & Hollingsworth, 1933, Idiognathoides sulcatus sulcatus Higgins & Bouckaert, 1968, Idiognathoides convexus (Ellison & Graves, 1941), Idiognathoides asiaticus Nigmadganov & Nemyrovskaya, 1992, Neognathodus cf. N. atokaensis Grayson, 1984, Neognathodus aff. bothrops Merrill, 1972, Neognathodus nataliae Alekseev & Gerelzezeg, 2001 (in Alekseev & Goreva 2001), Streptognathodus parvus Dunn, 1966, Idiognathodus incurvus Dunn, 1966, and Idiognathodus aff. delicatus Gunnell, 1931, suggesting Morrowan and Atokan (Pennsylvanian) ages for the dolomitic limestone and grainstone beds. Five types of microfacies (MF) and several marine facies zone (FZ) have been detected: MF1-bioclastic grainstone and MF2-wackestone deposited at the platform margin (FZ 6 and FZ 7), MF3-dolomitized wackestone representing an inner restricted platform (FZ 8), MF4-mudstone from a deeper water zone (FZ 4), and MF5-siliciclastic beds with bioclasts indicating a high-energy barrier associated with a platform margin (FZ 6). The findings confirm a shallow to deep platform and imply a connection among Mexican peri-Gondwanan basins, including the Tamatán Basin, indicating similarities in sedimentary facies and/or depositional environments linked to the Rheic Ocean during the Early to Middle Pennsylvanian.

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Section: Biostratigraphic Considerationsmentioning

confidence: 69%

Section: Biostratigraphic Considerationsmentioning

confidence: 97%

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Pennsylvanian Conodonts and Microfacies From Northeastern Mexico (Tamatán Group, Ciudad Victoria Block)

CASAS-PEÑA,

NAVAS-PAREJO,

JENCHEN

et al. 2024

RIPS

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“…2010; Cardoso et al . 2017a, b), four from Arctic Canada (Bender 1980), one from the Donets Basin (Fohrer et al . 2007), two from the Moscow Basin (Alekseev & Goreva 2001), three from New Mexico (Saelens 2014), three from Michigan (Landing & Wardlaw 1981), four from Oklahoma (Grayson 1984; Grubbs 1984), two from south‐western Missouri (Thompson & Lambert 2017), 56 from South China (this study), two from south‐east Alaska (Savage & Barkeley 1985), one from Cantabrian Mountains, Spain (van den Boogaard 1983), and 20 from the South Urals (Alekseev et al .…”

Section: Methodsmentioning

confidence: 99%

“…Conodont data from: AB , Amazonas Basin (Lemos 1992a; Cardoso et al . 2017a); AC , Arctic Canada (Bender 1980); AG , Algeria (T. I. Nemyrovska, unpub. data); AK , Alaska (Savage & Barkeley 1985); CM , Cantabrian Mountains, Spain (van den Boogaard 1983; Blanco‐Ferrera et al .…”

Section: Figurementioning

confidence: 99%

Evolution of the conodont Diplognathodus ellesmerensis from D. benderi sp. nov. at the Bashkirian–Moscovian (lower–middle Pennsylvanian) boundary in South China

Hogancamp

Lambert

et al. 2020

Papers in Palaeontology

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Conodont assemblages from the Bashkirian-Moscovian boundary interval in the Naqing section, South China have been studied in detail. A landmark-based geometric morphometric analysis of the evolution of Diplognathodus ellesmerensis is presented. This analysis helps demonstrate that a distinct new species, D. benderi sp. nov., is the direct evolutionary ancestor of D. ellesmerensis. The potential of using the first appearance datum (FAD) of D. ellesmerensis as the Bashkirian-Moscovian boundary marker is re-evaluated via biostratigraphic correlations of conodonts and other fossil groups between different palaeogeographical basins. The FAD of D. ellesmerensis from within the D. benderi sp. nov.-D. ellesmerensis lineage is an excellent potential marker to recognize a global Bashkirian-Moscovian boundary because of its global distribution, the abundance of supplementary marker species at similar stratigraphical levels, and the close stratigraphic proximity of the FAD to the traditional Bashkirian-Moscovian boundary, thus largely preserving the original concept of the base of the Moscovian Stage.

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The conodont genus Neognathodus Dunn, 1970, lower to middle Pennsylvanian, Amazonas Basin, Western Gondwana: Biostratigraphic and paleoenvironmental analysis

Mantilla

Scomazzon²,

Nascimento³

et al. 2022

Geobios

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Pennsylvanian conodonts from the Tapajós Group (Amazonas Basin, Brazil)

Cited by 8 publications

References 32 publications

Pennsylvanian Conodonts and Microfacies From Northeastern Mexico (Tamatán Group, Ciudad Victoria Block)

Pennsylvanian Conodonts and Microfacies From Northeastern Mexico (Tamatán Group, Ciudad Victoria Block)

Evolution of the conodont Diplognathodus ellesmerensis from D. benderi sp. nov. at the Bashkirian–Moscovian (lower–middle Pennsylvanian) boundary in South China

The conodont genus Neognathodus Dunn, 1970, lower to middle Pennsylvanian, Amazonas Basin, Western Gondwana: Biostratigraphic and paleoenvironmental analysis

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