Maastrichtian palaeoenvironments and palaeoclimate reconstruction in southern South America (Patagonia, Argentina) based on fossil fungi and algae using open data resources DOI
Noelia B. Nuñez Otaño, Egly Pérez Pincheira, Victoria Coll Moritan

et al.

Historical Biology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 15

Published: Oct. 24, 2024

The use of non-pollen palynomorphs (NPP), particularly fossil fungi and algae, as palaeobiological proxies for Late Cretaceous palaeoenvironmental palaeoclimatic reconstructions warm-to-hot greenhouse conditions, can enhance our understanding climate change impacts on modern Patagonian environments. This study aimed to reconstruct the Maastrichtian palaeoenvironment palaeoclimate in Cañadón Asfalto Basin (CAB, Chubut Province) by testing these NPPs using Nearest Living Relative method (NLR). Moreover, ecological requirements from open-source databases, such GBIF processing it with an open-source, cross-platform tool like QGIS, linked Köppen-Geiger shapefiles, provided evidence climate-driven palaeo-distribution patterns fungal algal diversity at CAB. Applying biogeographic distribution data, we reconstructed temperate evenly distributed precipitation warm summers, corresponding Cfb zone classifications. Additionally, methodology produced reliable results regarding Cenozoic floras' physiognomies based fungi, revealing a transition sparsely wooded areas palms prairies complex forest ecosystems palms, deciduous trees, shrubland. Furthermore, algae NLR method, first time, comprehensive insights into past water body characteristics, including trophic state quality.

Language: Английский

Maastrichtian palaeoenvironments and palaeoclimate reconstruction in southern South America (Patagonia, Argentina) based on fossil fungi and algae using open data resources DOI
Noelia B. Nuñez Otaño, Egly Pérez Pincheira, Victoria Coll Moritan

et al.

Historical Biology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 15

Published: Oct. 24, 2024

The use of non-pollen palynomorphs (NPP), particularly fossil fungi and algae, as palaeobiological proxies for Late Cretaceous palaeoenvironmental palaeoclimatic reconstructions warm-to-hot greenhouse conditions, can enhance our understanding climate change impacts on modern Patagonian environments. This study aimed to reconstruct the Maastrichtian palaeoenvironment palaeoclimate in Cañadón Asfalto Basin (CAB, Chubut Province) by testing these NPPs using Nearest Living Relative method (NLR). Moreover, ecological requirements from open-source databases, such GBIF processing it with an open-source, cross-platform tool like QGIS, linked Köppen-Geiger shapefiles, provided evidence climate-driven palaeo-distribution patterns fungal algal diversity at CAB. Applying biogeographic distribution data, we reconstructed temperate evenly distributed precipitation warm summers, corresponding Cfb zone classifications. Additionally, methodology produced reliable results regarding Cenozoic floras' physiognomies based fungi, revealing a transition sparsely wooded areas palms prairies complex forest ecosystems palms, deciduous trees, shrubland. Furthermore, algae NLR method, first time, comprehensive insights into past water body characteristics, including trophic state quality.

Language: Английский

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