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Article

Environmental mutagenesis during the end-Permian ecological crisis.

Proceedings of the National Academy of Sciences of the United States of America - 31 Aug 2004

Visscher Henk, Looy Cindy V, Collinson Margaret E, Brinkhuis Henk, van Konijnenburg-van Cittert Johanna H A, Kürschner Wolfram M, Sephton Mark A

Abstract excerpt

During the end-Permian ecological crisis, terrestrial ecosystems experienced preferential dieback of woody vegetation. Across the world, surviving herbaceous lycopsids played a pioneering role in repopulating deforested terrain. We document that the microspores of these lycopsids were regularly released in unseparated tetrads indicative of failure to complete the normal process of spore development. Although...

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Identifiers

PMID: 15282373
DOI: 10.1073/pnas.0404472101
PMCID: PMC516500

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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