An Exceptionally Preserved Terrestrial Record of LIP Effects on Plants in the Carnian (Upper Triassic) Amber-Bearing Section of the Dolomites, Italy

Autor(en)
Guido Roghi, Piero Gianolla, Evelyn Kustatscher, Alexander R. Schmidt, Leyla J. Seyfullah
Abstrakt

The Carnian Pluvial Episode (CPE) has been recognized as a time of plant radiations and originations, likely related to observed swift changes from xerophytic to more hygrophytic floras. This suggests that the increasing humidity causally resulting from LIP volcanism was the trigger for these changes in the terrestrial realm. Understanding the cause and effects of the CPE on the plant realm, requires study of well-preserved floras that are precisely aligned with the CPE. We therefore focus on the best age-constrained section within the CPE for the terrestrial to marginal marine environment to understand the floristic composition at the early CPE. This is found in the Dolomites, Italy, and is remarkable for the preservation of the oldest fossiliferous amber found in the rock record. An integrated study of palynomorphs and macro-remains related to the conifer families of the fossil resin bearing level brings together the floral components from this section. This observed mixture of different taxa of extinct and modern conifer families underlines firmly the effects of the LIP-induced CPE on the evolution and radiation of conifers.

Organisation(en)
Institut für Paläontologie
Externe Organisation(en)
Consiglio Nazionale delle Ricerche, Universitá degli studi di Ferrara, Naturmuseum Südtirol, Ludwig-Maximilians-Universität München, Staatliche Naturwissenschaftliche Sammlungen Bayerns, Georg-August-Universität Göttingen
Journal
Frontiers in Earth Science
Band
10
ISSN
2296-6463
DOI
https://doi.org/10.3389/feart.2022.900586
Publikationsdatum
07-2022
Peer-reviewed
Ja
ÖFOS 2012
105118 Paläontologie
Schlagwörter
ASJC Scopus Sachgebiete
Allgemeine Erdkunde und Planetologie
Sustainable Development Goals
SDG 14 – Leben unter Wasser
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/7bc8e180-09b4-447f-90b0-fa1eb53c23bc