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| Main Authors: | , , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2013
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.797718 |
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| _version_ | 1867171803288305664 |
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| author | Romano, Carlo Goudemand, Nicolas Vennemann, Torsten W Ware, David Schneebeli-Hermann, Elke Hochuli, Peter A Brühwiler, Thomas Brinkmann, Winand Bucher, Hugo |
| author_facet | Romano, Carlo Goudemand, Nicolas Vennemann, Torsten W Ware, David Schneebeli-Hermann, Elke Hochuli, Peter A Brühwiler, Thomas Brinkmann, Winand Bucher, Hugo |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Recovery from the end-Permian mass extinction is frequently described as delayed, with complex ecological communities typically not found in the fossil record until the Middle Triassic epoch. However, the taxonomic diversity of a number of marine groups, ranging from ammonoids to benthic foraminifera, peaked rapidly in the Early Triassic. These variations in biodiversity occur amidst pronounced excursions in the carbon isotope record, which are compatible with episodes of massive CO2 outgassing from the Siberian Large Igneous Province. Here we present a high-resolution Early Triassic temperature record based on the oxygen isotope composition of pristine apatite from fossil conodonts. Our reconstruction shows that the beginning of the Smithian substage of the Early Triassic was marked by a cooler climate, followed by an interval of warmth lasting until the Spathian substage boundary. Cooler conditions resumed in the Spathian. We find the greatest increases in taxonomic diversity during the cooler phases of the early Smithian and early Spathian. In contrast, a period of extreme warmth in the middle and late Smithian was associated with floral ecological change and high faunal taxonomic turnover in the ocean. We suggest that climate upheaval and carbon-cycle perturbations due to volcanic outgassing were important drivers of Early Triassic biotic recovery. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_797718 |
| institution | PANGAEA |
| language | en |
| publishDate | 2013 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Oxygen isotope values from biogenic apatite (conodont elements and fish teeth) from the Lower Triassic Mianwali Formation (Salt Range, Pakistan) Romano, Carlo Goudemand, Nicolas Vennemann, Torsten W Ware, David Schneebeli-Hermann, Elke Hochuli, Peter A Brühwiler, Thomas Brinkmann, Winand Bucher, Hugo Ammonoid zone; Bed; Calculated average/mean values; Geologic age name; Geological sample; GEOS; Lithologic unit/sequence; nammal_gorge; Nammal Gorge, Salt Range, northern Pakistan; Phase; Sigma; Species; δ18O, conodonts; δ18O, fish teeth Recovery from the end-Permian mass extinction is frequently described as delayed, with complex ecological communities typically not found in the fossil record until the Middle Triassic epoch. However, the taxonomic diversity of a number of marine groups, ranging from ammonoids to benthic foraminifera, peaked rapidly in the Early Triassic. These variations in biodiversity occur amidst pronounced excursions in the carbon isotope record, which are compatible with episodes of massive CO2 outgassing from the Siberian Large Igneous Province. Here we present a high-resolution Early Triassic temperature record based on the oxygen isotope composition of pristine apatite from fossil conodonts. Our reconstruction shows that the beginning of the Smithian substage of the Early Triassic was marked by a cooler climate, followed by an interval of warmth lasting until the Spathian substage boundary. Cooler conditions resumed in the Spathian. We find the greatest increases in taxonomic diversity during the cooler phases of the early Smithian and early Spathian. In contrast, a period of extreme warmth in the middle and late Smithian was associated with floral ecological change and high faunal taxonomic turnover in the ocean. We suggest that climate upheaval and carbon-cycle perturbations due to volcanic outgassing were important drivers of Early Triassic biotic recovery. |
| title | Oxygen isotope values from biogenic apatite (conodont elements and fish teeth) from the Lower Triassic Mianwali Formation (Salt Range, Pakistan) |
| topic | Ammonoid zone; Bed; Calculated average/mean values; Geologic age name; Geological sample; GEOS; Lithologic unit/sequence; nammal_gorge; Nammal Gorge, Salt Range, northern Pakistan; Phase; Sigma; Species; δ18O, conodonts; δ18O, fish teeth |
| url | https://doi.org/10.1594/PANGAEA.797718 |