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Bivalves and evolutionary resilience: old skills and new strategies to recover from the P/T and T/J extinction events

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Bivalves and evolutionary resilience: old skills and new strategies to recover from the P/T and T/J extinction events

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dc.contributor.author Ros Franch, Sonia
dc.contributor.author Echevarría, Javier
dc.date.accessioned 2022-12-21T14:10:10Z
dc.date.available 2022-12-21T14:10:10Z
dc.date.issued 2011
dc.identifier.citation Ros Franch, Sonia Echevarría, Javier 2011 Bivalves and evolutionary resilience: old skills and new strategies to recover from the P/T and T/J extinction events Historical Biology 23 4 411 429
dc.identifier.uri https://hdl.handle.net/10550/84847
dc.description.abstract Diversity dynamics among bivalves during the Triassic and Early Jurassic provides the opportunity to analyse the recovery patterns after two mass extinctions: Permian/Triassic and Triassic/Jurassic (T/J). The results presented here are based on a newly compiled worldwide genus-level database and are contrasted to the main morphological characters of the different taxonomical (orders and their constituent families and genera) and ecological groups. Many of such morphological characters are innovations appearing during the time span considered. Diversity and evolutionary rates were assessed and compared between these groups. During the Early Triassic there was a slow recovery, dominated by epifaunal taxa, the order Pectinida being the most diverse. The major post-Permian radiation took place during the Anisian, with several morphological and ecological innovations appearing and/or diversifying. The Late Triassic was a time of great diversification and ecological specialisation. Although the T/J was a true mass extinction for bivalves, it was not indiscriminate as its impact was stronger on specialised orders and not all ecological categories were equally affected. Recovery during earliest Jurassic was fast, confirming the high-evolutionary resilience of bivalve molluscs, except for groups with thick shells and tropical distribution, probably because of a biocalcification crisis.
dc.language.iso eng
dc.relation.ispartof Historical Biology, 2011, vol. 23, num. 4, p. 411-429
dc.subject Mol·luscos
dc.subject Evolució (Biologia)
dc.title Bivalves and evolutionary resilience: old skills and new strategies to recover from the P/T and T/J extinction events
dc.type journal article es_ES
dc.date.updated 2022-12-21T14:10:10Z
dc.identifier.doi 10.1080/08912963.2011.578744
dc.identifier.idgrec 155964
dc.rights.accessRights open access es_ES

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