Melbourne, Leanne; Schmidt, Daniela N; Sarkar, Suman (2025): Sporolithon sp1 structural integrity responses across the PETM [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.979401, In: Melbourne, L et al. (2025): Assessing structural integrity responses of coralline algae across the PETM [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.978487
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Published: 2025-04-29 • DOI registered: 2025-05-28
Abstract:
This dataset contains cell measurements (length, width and wall thickness) for an unidentified coralline alga of the genus Sporolithon, labelled Sporolithon sp1. Samples were extracted from limestone collected in 2015 and 2020 in Meghalaya, NE India (Eastern Tethys), corresponding to a time before and during the Palaeocene-Eocene Thermal Maximum, PETM (~55.8 Ma).
Keyword(s):
Funding:
The Royal Society, grant/award no. NIF\R1\181330: Royal Society-SERB Newton International Fellowship
Coverage:
Latitude: 25.261783 * Longitude: 91.710433
Date/Time Start: 2015-12-03T00:00:00 * Date/Time End: 2020-02-19T00:00:00
Minimum DEPTH, sediment/rock: 15.85 m * Maximum DEPTH, sediment/rock: 27.80 m
Event(s):
Comment:
Samples were prepared into thin sections, images were taken using a Hitachi S-3500N variable pressure scanning electron microscope and then measurements made on images using imageJ.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Time point, descriptive | Time point | Melbourne, Leanne | Time | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Melbourne, Leanne | Geocode | |
| 3 | Cell, length | Cell l | µm | Melbourne, Leanne | ||
| 4 | Cell, width | Cell w | µm | Melbourne, Leanne | ||
| 5 | Coralline algae, wall thickness, inter filament | Wall thick inter | µm | Melbourne, Leanne | ||
| 6 | Coralline algae, wall thickness, intra filament | Wall thick intra | µm | Melbourne, Leanne |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
416 data points
Data
| 1 Time point | 2 Depth sed [m] | 3 Cell l [µm] | 4 Cell w [µm] | 5 Wall thick inter [µm] | 6 Wall thick intra [µm] |
|---|---|---|---|---|---|
| PPP | 15.85 | 11 | 10 | 3.0 | 2.8 |
| PPP | 15.85 | 12 | 10 | 2.8 | 2.7 |
| PPP | 15.85 | 12 | 10 | 3.0 | 2.7 |
| PPP | 15.85 | 12 | 10 | 2.8 | 2.7 |
| PPP | 15.85 | 13 | 12 | 2.9 | 2.8 |
| PPP | 15.85 | 9 | 6 | 2.8 | 2.8 |
| PPP | 15.85 | 12 | 11 | 2.5 | 2.5 |
| PPP | 15.85 | 12 | 10 | 3.1 | 2.9 |
| PPP | 15.85 | 13 | 10 | 2.9 | 2.7 |
| PPP | 15.85 | 14 | 12 | 3.1 | 2.8 |
| PPP | 15.85 | 10 | 8 | 2.9 | 2.7 |
| PPP | 15.85 | 10 | 11 | 2.9 | 2.7 |
| PPP | 15.85 | 12 | 11 | 3.0 | 2.6 |
| PPP | 15.85 | 14 | 10 | 3.0 | 2.8 |
| PPP | 15.85 | 14 | 10 | 2.8 | 2.6 |
| PPP | 15.85 | 8 | 6 | 2.9 | 2.7 |
| PPP | 15.85 | 14 | 12 | 2.8 | 2.6 |
| PPP | 15.85 | 14 | 10 | 2.9 | 2.6 |
| PPP | 19.00 | 12 | 10 | 3.1 | 2.7 |
| PPP | 19.00 | 11 | 10 | 2.9 | 2.8 |
| PPP | 19.00 | 12 | 10 | 3.1 | 2.6 |
| PPP | 19.00 | 12 | 10 | 2.9 | 2.6 |
| PPP | 19.00 | 12 | 10 | 2.8 | 2.6 |
| PPP | 19.00 | 10 | 10 | 3.0 | 2.7 |
| PPP | 19.00 | 12 | 8 | 2.6 | 2.5 |
| PPP | 19.00 | 12 | 10 | 3.0 | 2.9 |
| PPP | 19.00 | 13 | 11 | 3.0 | 2.9 |
| PPP | 19.00 | 14 | 9 | 3.0 | 2.9 |
| PPP | 19.00 | 10 | 6 | 3.0 | 2.7 |
| PPP | 19.00 | 10 | 11 | 2.9 | 2.7 |
| PPP | 19.00 | 12 | 11 | 3.0 | 2.7 |
| PPP | 19.00 | 14 | 10 | 2.8 | 2.5 |
| PPP | 19.00 | 12 | 10 | 2.8 | 2.6 |
| PPP | 19.00 | 10 | 10 | 2.9 | 2.7 |
| PPP | 19.00 | 13 | 11 | 2.8 | 2.6 |
| PPP | 19.00 | 15 | 12 | 2.9 | 2.7 |
| PPP | 19.00 | 12 | 10 | 2.8 | 2.6 |
| PPP | 19.00 | 12 | 11 | 3.0 | 2.5 |
| baseline | 20.80 | 9 | 7 | ||
| baseline | 20.80 | 13 | 11 | ||
| baseline | 20.80 | 13 | 11 | ||
| baseline | 20.80 | 12 | 12 | ||
| baseline | 20.80 | 12 | 10 | ||
| baseline | 20.80 | 10 | 9 | ||
| baseline | 20.80 | 11 | 11 | 3.0 | 2.8 |
| baseline | 20.80 | 13 | 12 | ||
| baseline | 20.80 | 12 | 11 | ||
| baseline | 20.80 | 11 | 9 | ||
| baseline | 20.80 | 12 | 12 | ||
| baseline | 20.80 | 12 | 11 | ||
| baseline | 20.80 | 13 | 10 | ||
| baseline | 20.80 | 12 | 10 | 2.8 | 2.6 |
| baseline | 20.80 | 9 | 8 | ||
| baseline | 20.80 | 15 | 12 | ||
| baseline | 20.80 | 15 | 12 | ||
| baseline | 20.80 | 11 | 11 | 2.8 | 2.6 |
| baseline | 20.80 | 13 | 9 | ||
| baseline | 20.80 | 12 | 9 | ||
| PETM | 26.20 | 9 | 7 | 3.0 | 2.9 |
| PETM | 26.20 | 13 | 11 | 2.9 | 2.6 |
| PETM | 26.20 | 17 | 13 | 2.8 | 2.5 |
| PETM | 26.20 | 10 | 6 | 3.0 | 2.9 |
| PETM | 26.20 | 17 | 12 | 2.8 | 2.6 |
| PETM | 26.20 | 10 | 10 | 3.0 | 2.9 |
| PETM | 26.20 | 14 | 11 | 2.6 | 2.4 |
| PETM | 26.20 | 12 | 10 | 3.0 | 2.9 |
| PETM | 26.20 | 11 | 11 | 2.9 | 2.8 |
| PETM | 26.20 | 15 | 13 | 3.0 | 2.8 |
| PETM | 26.20 | 13 | 9 | 2.9 | 2.7 |
| PETM | 26.20 | 15 | 12 | 2.9 | 2.7 |
| PETM | 26.20 | 13 | 10 | 3.0 | 2.6 |
| PETM | 26.20 | 16 | 12 | 2.8 | 2.8 |
| PETM | 26.20 | 10 | 7 | 2.8 | 2.6 |
| PETM | 26.20 | 13 | 8 | 2.9 | 2.7 |
| PETM | 26.20 | 10 | 9 | 2.9 | 2.5 |
| PETM | 26.20 | 16 | 13 | 2.9 | 2.7 |
| PETM | 26.20 | 14 | 8 | 2.5 | 2.6 |
| PETM | 26.20 | 12 | 8 | 2.9 | 2.7 |
| PETM | 27.80 | 10 | 8 | ||
| PETM | 27.80 | 12 | 12 | ||
| PETM | 27.80 | 11 | 11 | ||
| PETM | 27.80 | 11 | 10 | ||
| PETM | 27.80 | 11 | 8 | ||
| PETM | 27.80 | 9 | 7 | ||
| PETM | 27.80 | 10 | 10 | ||
| PETM | 27.80 | 14 | 13 | ||
| PETM | 27.80 | 11 | 10 | ||
| PETM | 27.80 | 11 | 12 | ||
| PETM | 27.80 | 11 | 11 | ||
| PETM | 27.80 | 12 | 11 | ||
| PETM | 27.80 | 11 | 11 | ||
| PETM | 27.80 | 11 | 10 | ||
| PETM | 27.80 | 10 | 8 | ||
| PETM | 27.80 | 11 | 8 | ||
| PETM | 27.80 | 12 | 10 | ||
| PETM | 27.80 | 14 | 13 | ||
| PETM | 27.80 | 9 | 8 | ||
| PETM | 27.80 | 9 | 9 |