New fossil discoveries illustrate the diversity of past terrestrial ecosystems in New Caledonia - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Scientific Reports Année : 2021

New fossil discoveries illustrate the diversity of past terrestrial ecosystems in New Caledonia

(1) , , , , , , , , , , , , , , , , ,
1
Dominique Cluzel
  • Fonction : Auteur
  • PersonId : 1065693
Romain Garrouste
Jérôme Munzinger
Andrew Leslie
  • Fonction : Auteur
Jessica Fisher
  • Fonction : Auteur
Nicolas Folcher
  • Fonction : Auteur
Emma Locatelli
  • Fonction : Auteur
Wyndy Foy
  • Fonction : Auteur
Thibault Chaillon
  • Fonction : Auteur
David Cantrill
  • Fonction : Auteur
Pierre Maurizot
  • Fonction : Auteur
Porter Lowry
  • Fonction : Auteur
Peter Crane
  • Fonction : Auteur
Jean-Jacques Bahain
Pierre Voinchet
  • Fonction : Auteur
Hervé Jourdan
  • Fonction : Auteur
Philippe Grandcolas
  • Fonction : Auteur
André Nel

Résumé

Abstract New Caledonia was, until recently, considered an old continental island harbouring a rich biota with outstanding Gondwanan relicts. However, deep marine sedimentation and tectonic evidence suggest complete submergence of the island during the latest Cretaceous to the Paleocene. Molecular phylogenies provide evidence for some deeply-diverging clades that may predate the Eocene and abundant post-Oligocene colonisation events. Extinction and colonization biases, as well as survival of some groups in refuges on neighbouring paleo-islands, may have obscured biogeographic trends over long time scales. Fossil data are therefore crucial for understanding the history of the New Caledonian biota, but occurrences are sparse and have received only limited attention. Here we describe five exceptional fossil assemblages that provide important new insights into New Caledonia’s terrestrial paleobiota from three key time intervals: prior to the submersion of the island, following re-emergence, and prior to Pleistocene climatic shifts. These will be of major importance for elucidating changes in New Caledonia’s floristic composition over time.

Dates et versions

hal-03524962 , version 1 (13-01-2022)

Identifiants

Citer

Dominique Cluzel, Romain Garrouste, Jérôme Munzinger, Andrew Leslie, Jessica Fisher, et al.. New fossil discoveries illustrate the diversity of past terrestrial ecosystems in New Caledonia. Scientific Reports, 2021, 11 (1), pp.18388. ⟨10.1038/s41598-021-97938-5⟩. ⟨hal-03524962⟩

Collections

UNC
11 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More