Mapping monstrosity: Malformed sporomorphs across the Smithian/Spathian boundary interval and beyond (Salt Range, Pakistan)
نویسندگان
چکیده
In the last 500 million years, Earth's biota experienced periods of crises with extinctions on a large scale and significant turnover events, one them being Permian/Triassic boundary extinction event. The following Early Triassic was critical time marked by series biological environmental changes complex recovery pattern marine faunas ecosystems. Generally, animals plants respond to stress using different strategies that help tolerate or recover from unfavourable conditions. this contribution, we quantitatively qualitatively describe variety malformations spores pollen grains extensively studied Nammal section (Salt Range, Pakistan) across Smithian/Spathian interval (Early Triassic). High dominance malformed sporomorphs is recorded throughout interval, indicating stressful conditions for Indian margin during Triassic. One highest abundances coincides spore spike negative carbon isotope excursion middle Smithian, emphasising intense biotic stress. Either cocktail volcanic gases, acid rains, soil acidification, heavy metal pollution as consequence late pulse Siberian Traps igneous province climatic extremes might have been responsible these malformations. Here teratology used tool/means assess severity in plant kingdom, its potential value signal ecological disturbance.
منابع مشابه
Vegetation history across the Permian–Triassic boundary in Pakistan (Amb section, Salt Range)
a Palaeoecology, Institute of Environmental Biology, Faculty of Science, Laboratory of Palaeobotany and Palynology, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands b Department of Geosciences, University of Oslo, P.O. Box 1047, Blindern, N-0316 Oslo, Norway c Forschungsstelle für Paläobotanik am Institut für Geologie und Paläontologie, Westfälische Wilhelms-Universität Müns...
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ژورنال
عنوان ژورنال: Global and Planetary Change
سال: 2022
ISSN: ['0921-8181', '1872-6364']
DOI: https://doi.org/10.1016/j.gloplacha.2022.103975