Armstorff, Genevieve: A 320 MA Multi-Sphere Record of Biodiversity and Geodynamics Through Fungal Biomarkers [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993935 (dataset in review)
Abstract:
This study presents a high-resolution geochemical reconstruction of terrestrial biomarkers spanning the 320 Ma Carboniferous to 2026 AD Anthropocene. Utilizing a unified 800-sample matrix, I evaluated the evolutionary trajectory of wood-degrading fungal lineages—specifically the Paleancistrus-Phanerochaete transition—through the lens of Polycyclic Aromatic Hydrocarbon (PAH) molecular proxies. I introduce a multidimensional analytical framework that integrates the Combined PAH Flux Index (CPFI) and the Higher Plant Parameter (HPP) with planetary-scale drivers, including Inner Core Compositional Rayleigh Numbers (Rac), the Thermal Maturity Index (Im), and the Mathieu stability characteristic (a).
Our results identify a primary metabolic pulse at 318 Ma, where a surge in the CPFI correlates with a high-energy state characterized by a CPFI of 0.78 and a calculated reflectance (Rc) of 0.87. Time-series analysis reveals that modern geochemical signatures have bypassed Pleistocene stable baselines, exhibiting a rapid regression to Paleozoic thermal maturity levels (Rc ≈ 0.86+). However, 3D surface modeling of Time, CPFI/HPP ratios, and Phylogenetic Diversity Scores (PDS) uncovers a critical high-frequency lag in modern biological complexity compared to the 318 Ma baseline. These findings suggest that contemporary terrestrial metabolism is currently over-revving in response to orbital excitation (q) and intensified geodynamic conductivity, marking a fundamental departure from planetary equilibrium.
Keyword(s):
Biodiversity; biodiversity - ecosystem functioning; Biomarkers; Chemical/biological analysis; geochemical archives; geochemical conditions; geochemical cycles; geodynamic modeling; Geodynamics; Organic-binding ligands; Organic carbon; Paleoclimate; paleoclimate archive; paleoclimate proxy; Paleoclimate reconstructions; paleoclimatology
References:
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Further details:
Armstorff, Genevieve: ReadMe - A 320 MA Geochemical and Geodynamic Record Through Fungal PAH Biomarkers. ReadMe - A 320 MA Multi-Sphere Record of Biodiversity and Geodynamics Through Fungal Biomarkers.pdf
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Age | Age | Ma | Armstorff, Genevieve | ||
| 2 | AGE | Age | ka BP | Armstorff, Genevieve | Geocode | |
| 3 | Mathieu function | a | Armstorff, Genevieve | Calculated, according to Armstorff (2026) | Stability Characteristic | |
| 4 | Orbital excitation function | q | Armstorff, Genevieve | Calculated, according to Armstorff (2026) | ||
| 5 | Periodic forcing function | cos(2t) | Armstorff, Genevieve | Calculated, according to Armstorff (2026) | ||
| 6 | Fungi | Fungi | Armstorff, Genevieve | Modern | ||
| 7 | Uniform resource locator/link to reference | URL ref | Armstorff, Genevieve | |||
| 8 | Fungi | Fungi | Armstorff, Genevieve | Ancient | ||
| 9 | Carbon, organic, total | TOC | % | Armstorff, Genevieve | Calculated, according to Armstorff (2026) | |
| 10 | Retene | Retene | µg/g | Armstorff, Genevieve | Calculated, see abstract | |
| 11 | Cadinene | Cadinene | µg/g | Armstorff, Genevieve | Calculated, see abstract | |
| 12 | Higher plant parameter index | HPP index | Armstorff, Genevieve | Calculated, according to Armstorff (2026) | ||
| 13 | Higher plant parameter index | HPP index | Armstorff, Genevieve | Calculated, according to Armstorff (2026) | ||
| 14 | Higher plant parameter, magnitude | HPP magnitude | Armstorff, Genevieve | Calculated, according to Armstorff (2026) | ||
| 15 | Stability status | Stability | Armstorff, Genevieve | |||
| 16 | Conductivity, electrical | EC | S/m | Armstorff, Genevieve | Calculated, see abstract | |
| 17 | Phosphorus | P | µg/g | Armstorff, Genevieve | Calculated, see abstract | |
| 18 | 1-Methylphenanthrene | 1-Methylphenanthrene | µg/g | Armstorff, Genevieve | Calculated, see abstract | |
| 19 | 2-Methylphenanthrene | 2-Methylphenanthrene | µg/g | Armstorff, Genevieve | Calculated, see abstract | |
| 20 | 3-Methylphenanthrene | 3-Methylphenanthrene | µg/g | Armstorff, Genevieve | Calculated, see abstract | |
| 21 | 9-Methylphenanthrene | 9-Methylphenanthrene | µg/g | Armstorff, Genevieve | Calculated, see abstract | |
| 22 | Methylphenanthrene Index | Methylphenanthrene I | Armstorff, Genevieve | Calculated, see abstract | MPI-1 | |
| 23 | Rayleigh number | Ra | Armstorff, Genevieve | Calculated, according to Armstorff (2026) | ||
| 24 | Vitrinite reflectance | Ro | % | Armstorff, Genevieve | Calculated, according to Armstorff (2026) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
18400 data points
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