Titre
Good genes and good luck: Ammonoid diversity and the end-Permian mass extinction
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Brayard, A.
Auteure/Auteur
Escarguel, G.
Auteure/Auteur
Bucher, H.
Auteure/Auteur
Monnet, C.
Auteure/Auteur
Bruehwiler, T.
Auteure/Auteur
Goudemand, N.
Auteure/Auteur
Galfetti, T.
Auteure/Auteur
Guex, J.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0036-8075
Statut éditorial
Publié
Date de publication
2009
Volume
325
Première page
1118
Dernière page/numéro d’article
1121
Peer-reviewed
Oui
Langue
anglais
Résumé
The end-Permian mass extinction removed more than 80% of marine genera.
Ammonoid cephalopods were among the organisms most affected by this
crisis. The analysis of a global diversity data set of ammonoid genera
covering about 106 million years centered on the Permian-Triassic
boundary (PTB) shows that Triassic ammonoids actually reached levels of
diversity higher than in the Permian less than 2 million years after the
PTB. The data favor a hierarchical rather than logistic model of
diversification coupled with a niche incumbency hypothesis. This
explosive and nondelayed diversification contrasts with the slow and
delayed character of the Triassic biotic recovery as currently
illustrated for other, mainly benthic groups such as bivalves and
gastropods.
Ammonoid cephalopods were among the organisms most affected by this
crisis. The analysis of a global diversity data set of ammonoid genera
covering about 106 million years centered on the Permian-Triassic
boundary (PTB) shows that Triassic ammonoids actually reached levels of
diversity higher than in the Permian less than 2 million years after the
PTB. The data favor a hierarchical rather than logistic model of
diversification coupled with a niche incumbency hypothesis. This
explosive and nondelayed diversification contrasts with the slow and
delayed character of the Triassic biotic recovery as currently
illustrated for other, mainly benthic groups such as bivalves and
gastropods.
PID Serval
serval:BIB_CE193C9EB37C
Date de création
2012-10-19T14:47:39.946Z
Date de création dans IRIS
2025-05-21T04:05:36Z