Marine influence in western Amazonia during the late Miocene

Espinosa, Bruno S.; D’Apolito, Carlos; Silva-Caminha, Silane A.F. da

doi:10.1016/j.gloplacha.2021.103600

Cited by 16 publications

(5 citation statements)

References 62 publications

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“…Its arrival in South America is dated as 14.2 to 11.6 Ma, and it was observed in almost all of the sedimentary basins in northern South America (Regali 1971, Wijmstra 1971, Lorente 1986, Muller et al 1987, Jaramillo et al 2011, Parra et al 2020. Instead, G. magnaclavata shows two dispersal phases: a phase between 16.1 to 14.2 Ma, prior to the arrival of C. vanraadshooveni, which was observed in the Subandean basins ( Jaramillo et al 2011) and the western Amazon (d'Apolito 2016, Espinosa et al 2021), and a phase from 11.9 to 9.7 Ma, after the appearance of C. vanraadshooveni, observed in the Venezuelan coastal basins (Germeraad et al 1968, Lorente 1986, Muller et al 1987, the Amazon submarine fan (Regali 1971), and western Amazon (Hoorn 1993;Leite et al 2017Leite et al , 2021Linhares et al 2017Linhares et al , 2019Leandro et al 2019Leandro et al , 2022.…”

Section: Middle Miocene (1597 To 1163 Ma) the Andes As A Major Sedime...mentioning

confidence: 99%

“…On the left is a summary of the lithological changes in the Solimões and Içá formations, with the top of the Solimões Formation marked by a red line (adapted from d 'Apolito et al 2021, Kern et al 2020. Marine incursions are marked in blue (adapted from Jaramillo et al 2017, Espinosa et al 2021, Leandro et al 2022). The biozonation is from Jaramillo et al (2011).…”

Section: Figurementioning

confidence: 99%

“…Pelliciera), and the mangrove fern Deltoidospora adriennis (aff. Acrostichum) (Hoorn 1993;Boonstra et al 2015;d'Apolito 2016;Jaramillo et al 2017;Linhares et al 2017Linhares et al , 2019d'Apolito et al 2021;Espinosa et al 2021;Leandro et al 2022). The nearest living relatives of these species are nowadays common on the coastal mudflats of Colombia and Brazil (Germeraad et al 1968).…”

Section: Early Miocene (2303 To 1597 Ma) a Fluvial Landscape With Sed...mentioning

confidence: 99%

“…In the Eastern Cordillera (Northern and Central Andes), mountain uplift accelerated (see Boschman 2021), while subsidence in both the Subandean and Amazon sedimentary basins increased (Roddaz et al 2010). These geological events, and the eastward shift of the center of subsidence due to the changes in dynamic topography (Shephard et al 2010), led to changes from lacustrine (Pebas phase) to fluvial (Acre phase) deposition in the western Amazon (Latrubesse et al 2007(Latrubesse et al , 2010Hoorn et al 2010;Da Silveira & de Souza 2015; see also overview in Espinosa et al 2021), and the trans-continentalization of the Amazon River (Figueiredo et al 2009(Figueiredo et al , 2010Hoorn et al 2017;Albert et al 2018).…”

Section: Late Miocene To Pliocene (1163 To 26 Ma) Transition To the A...mentioning

confidence: 99%

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Neogene History of the Amazonian Flora: A Perspective Based on Geological, Palynological, and Molecular Phylogenetic Data

Hoorn

Lohmann

Boschman

et al. 2023

Annual Review of Earth and Planetary Sciences

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The Amazon hosts one of the largest and richest rainforests in the world, but its origins remain debated. Growing evidence suggests that geodiversity and geological history played essential roles in shaping the Amazonian flora. Here we summarize the geo-climatic history of the Amazon and review paleopalynological records and time-calibrated phylogenies to evaluate the response of plants to environmental change. The Neogene fossil record suggests major sequential changes in plant composition and an overall decline in diversity. Phylogenies of eight Amazonian plant clades paint a mixed picture, with the diversification of most groups best explained by constant speciation rates through time, while others indicate clade-specific increases or decreases correlated with climatic cooling or increasing Andean elevation. Overall, the Amazon forest seems to represent a museum of diversity with a high potential for biological diversification through time. To fully understand how the Amazon got its modern biodiversity, further multidisciplinary studies conducted within a multimillion-year perspective are needed. ▪ The history of the Amazon rainforest goes back to the beginning of the Cenozoic (66 Ma) and was driven by climate and geological forces. ▪ In the early Neogene (23–13.8 Ma), a large wetland developed with episodic estuarine conditions and vegetation ranging from mangroves to terra firme forest. ▪ In the late Neogene (13.8–2.6 Ma), the Amazon changed into a fluvial landscape with a less diverse and more open forest, although the details of this transition remain to be resolved. ▪ These geo-climatic changes have left imprints on the modern Amazonian diversity that can be recovered with dated phylogenetic trees. ▪ Amazonian plant groups show distinct responses to environmental changes, suggesting that Amazonia is both a refuge and a cradle of biodiversity.

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Section: Middle Miocene (1597 To 1163 Ma) the Andes As A Major Sedime...mentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Early Miocene (2303 To 1597 Ma) a Fluvial Landscape With Sed...mentioning

confidence: 99%

Section: Late Miocene To Pliocene (1163 To 26 Ma) Transition To the A...mentioning

confidence: 99%

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Neogene History of the Amazonian Flora: A Perspective Based on Geological, Palynological, and Molecular Phylogenetic Data

Hoorn

Lohmann

Boschman

et al. 2023

Annual Review of Earth and Planetary Sciences

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“…during the Pliocene (Kachniasz and Silva-Caminha, 2016;Silveira and Souza, 2017;Espinosa et al, 2021).…”

Section: Evidence Of Miocene Marine Incursions In the Western Amazoniamentioning

confidence: 99%

Multi-proxy evidence of Caribbean-sourced marine incursions in the Neogene of Western Amazonia, Brazil

Leandro

Linhares

Mota

et al. 2022

Geology

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The timing of continental-scale marine flooding events in Western Amazonia during the Neogene is still an unsolved question. Despite broad proxy-based evidence of such events, the pathways and duration of late Miocene marine incursions remain controversial. We provide coupled calcareous and organic microfossil and geochemical data from six onshore cores from Neogene sequences of the Solimões Basin, Brazil. Our records support minor marine influence in the early Miocene (23.0, 21.1, 18.6, and 16.3 Ma), middle Miocene (14.9, 13.7, and 12.9 Ma) and early Pliocene (4.7, 4.2–4.1, and 3.8 Ma), and conspicuous marine incursions in the late Miocene (11.1–8.8 Ma) suggested by the consistent presence of salinity-indicative microfossils and geochemical data. Our findings challenge the view of major marine incursions in the early and middle Miocene in the studied area. We propose for the first time a new late Miocene incursion (LMI) event as the main marine flooding event in Western Amazonia during the Neogene. These onshore records are compared with three offshore cores from the Atlantic and Pacific Oceans. The similarity between microfossil assemblages of the Solimões Basin and the Caribbean Sea, and evidence of increased runoff from the Orinoco river drainage system, strongly suggest the Caribbean Sea as the primary source area of the marine incursions, supporting a Venezuelan seaway. We further show for the first time the potential linkage between Neogene marine incursions (mainly the LMI) into the Solimões Basin and major disturbances in the global carbon cycle.

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Paleogene and Neogene Palynological Record in Brazil and Its Paleoclimatic Significance

Garcia,

Akabane,

de Oliveira

et al. 2024

Brazilian Paleofloras

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Marine influence in western Amazonia during the late Miocene

Cited by 16 publications

References 62 publications

Neogene History of the Amazonian Flora: A Perspective Based on Geological, Palynological, and Molecular Phylogenetic Data

Neogene History of the Amazonian Flora: A Perspective Based on Geological, Palynological, and Molecular Phylogenetic Data

Multi-proxy evidence of Caribbean-sourced marine incursions in the Neogene of Western Amazonia, Brazil

Paleogene and Neogene Palynological Record in Brazil and Its Paleoclimatic Significance

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