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

Mantilla, Andrés Felipe Rojas; Scomazzon, Ana Karina; Nascimento, Sara; Alvarenga, Renata dos Santos; Lemos, Valesca Brasil; Souza, Paulo Alves de

doi:10.1016/j.geobios.2022.10.002

Cited by 2 publications

(2 citation statements)

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“… 16 fossil site Pirabas Formation: benthic foraminifera, bryozoans, calcareous algae, echinoderms, molluscs, crustaceans, ichnofossils and fish assemblages [ 67 ] Pebas Fm. 17 fossil site Pebas Formation: glochidia [ 68 ] 18 fossil site Pebas Formation: molluscs [ 69 ] 19 fossil site Pebas Formation: ichnofossils [ 70 ] Tapajós Group 20 fossil sites Tapajós Group: Neognathodus [ 71 ] mineral occurrences 21 Lago Grande Complex [ 72 ] 22 Grão Pará Group [ 73 ] 23 Águas Claras Formation [ 74 ] 24 Canaã and Rio Maria region [ 75 ] 25 Jaguar hydrothermal nickel sulfite deposit [ 76 ] 26 Cerro Manomó [ 77 ] 27 Morro dos Seis Lagos [ 78 ] 28 Paragominas-Capim...…”

Section: Methodsmentioning

confidence: 99%

“…Examples of Neogene fossil sites include the Pirabas [67], Solimões and Pebas formations [62][63][64][65]68,69,130], which contain many easily observable macro-and microfossils, but also trace fossils (ichnofacies) [70] and evidence of different types of marine and fluvial conditions in past eras. These sites provide evidence for quick assessment of the age and circumstances of the formation of sediment deposits [69,71], as well as understanding palaeoclimatic changes and transitions between geological eras [66], which is especially important regarding the archival function of geodiversity. The types of fossils that are found at these sites are listed in table 2.…”

Section: (Ii) Other Types Of Geological Diversity In the Amazon Drain...mentioning

confidence: 99%

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Geodiversity in the Amazon drainage basin

Alsbach,

Seijmonsbergen,

Hoorn

2024

Phil. Trans. R. Soc. A.

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The Amazon is the largest drainage basin on Earth and contains a wide variety of abiotic landscape features. In spite of this, the geodiversity in this basin has not yet been objectively evaluated. We address this knowledge gap by combining a meta-analysis of an existing global geodiversity map and its components with a systematic literature review, to identify the key characteristics of geodiversity in the Amazon drainage basin (ADB). We also evaluate how these global geodiversity component maps, that are based on the geology, geomorphology, soils and hydrology, could be refined to better reflect geodiversity in the basin. Our review shows that geology—through lithological diversity and geological structures—and hydrology—through hydrological processes that influence geomorphology and soil diversity—are the main determinants of geodiversity. Based on these features, the ADB can be subdivided into three principal regions: (i) the Andean orogenic belt and western Amazon, (ii) the cratons and eastern Amazon, and (iii) the Solimões-Amazon river system. Additional methods to map geomorphological and hydrological diversity have been identified. Future research should focus on investigating the relationship between the geodiversity components and assess their relationship with biodiversity. Such knowledge can enhance conservation plans for the ADB. This article is part of the Theo Murphy meeting issue ‘Geodiversity for science and society’.

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