Altered River Morphology in South Africa Related to the Permian-Triassic Extinction. Ward, P. D., Montgomery, D. R., & Smith, R. Science, 289(5485):1740–1743, 2000.
doi  abstract   bibtex   
The Permian-Triassic transition in the Karoo Basin of South Africa was characterized by a rapid and apparently basin-wide change from meandering to braided river systems, as evidenced by preserved sedimentary facies. This radical changeover in river morphology is consistent with geomorphic consequences stemming from a rapid and major die-off of rooted plant life in the basin. Evidence from correlative nonmarine strata elsewhere in the world containing fluvial Permian-Triassic boundary sections suggests that a catastrophic terrestrial die-off of vegetation was a global event, producing a marked increase in sediment yield as well as contributing to the global $\delta$13C excursion across the Permian-Triassic boundary.
@article{wardAlteredRiverMorphology2000,
  title = {Altered River Morphology in {{South Africa}} Related to the {{Permian}}-{{Triassic}} Extinction},
  author = {Ward, Peter D. and Montgomery, David R. and Smith, Roger},
  year = {2000},
  volume = {289},
  pages = {1740--1743},
  issn = {1095-9203},
  doi = {10.1126/science.289.5485.1740},
  abstract = {The Permian-Triassic transition in the Karoo Basin of South Africa was characterized by a rapid and apparently basin-wide change from meandering to braided river systems, as evidenced by preserved sedimentary facies. This radical changeover in river morphology is consistent with geomorphic consequences stemming from a rapid and major die-off of rooted plant life in the basin. Evidence from correlative nonmarine strata elsewhere in the world containing fluvial Permian-Triassic boundary sections suggests that a catastrophic terrestrial die-off of vegetation was a global event, producing a marked increase in sediment yield as well as contributing to the global {$\delta$}13C excursion across the Permian-Triassic boundary.},
  journal = {Science},
  keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-14007168,sediment-yield,system-catastrophe,vegetation,water-resources},
  lccn = {INRMM-MiD:c-14007168},
  number = {5485}
}

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