Romano, Carlo; Goudemand, Nicolas; Vennemann, Torsten W; Ware, David; Schneebeli-Hermann, Elke; Hochuli, Peter A; Brühwiler, Thomas; Brinkmann, Winand; Bucher, Hugo (2013): Oxygen isotope values from biogenic apatite (conodont elements and fish teeth) from the Lower Triassic Mianwali Formation (Salt Range, Pakistan) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.797718, Supplement to: Romano, C et al. (2013): Climate and biotic upheavals following the end-Permian mass extinction. Nature Geoscience, 6, 57-60, https://doi.org/10.1038/ngeo1667
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Abstract:
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.
Coverage:
Latitude: 32.657222 * Longitude: 71.795278
Event(s):
Comment:
A print version of the table is available in pdf-format (A3) at "Other version:", the original excel-file as provided by the author is linked at hdl:10013/epic.40210.d002.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Geologic age name | Geol age | Romano, Carlo | |||
| 2 | Lithologic unit/sequence | Unit | Romano, Carlo | |||
| 3 | Ammonoid zone | Ammonoid zone | Romano, Carlo | |||
| 4 | Bed | Bed | Romano, Carlo | |||
| 5 | Species | Species | Romano, Carlo | measured conodont species | ||
| 6 | δ18O, conodonts | δ18O conod | ‰ VSMOW | Romano, Carlo | Calculated average/mean values | |
| 7 | Sigma | Sigma | Romano, Carlo | d18O conodonts | ||
| 8 | δ18O, fish teeth | δ18O fish t | ‰ VSMOW | Romano, Carlo | Calculated average/mean values | |
| 9 | Sigma | Sigma | Romano, Carlo | d18O whole fish teeth | ||
| 10 | Phase | Phase | Romano, Carlo | delta18O phase |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
381 data points