Late Eifelian and Early Givetian ostracod assemblages from Wellin, Hotton and On-Jemelle (Ardenne, Dinant Synclinorium, Belgium). Paleoenvironmental implications

Autor:	Jean-Georges Casier, Sébastien Maillet, Alain Préat, Rachida Kasimi
Rok vydání:	2015
Předmět:	Paleontology biology Carbonate platform Ostracod Paleoclimatology Paleoecology Eifelian Syncline Sedimentology biology.organism_classification Geology Devonian
Zdroj:	Revue de Micropaléontologie. 58:287-308
ISSN:	0035-1598
Popis:	The study of 3430 ostracods collected in the Lomme, Hanonet and Trois-Fontaines formations (Late Eifelian/Early Givetian) in four sections of the Dinant Synclinorium (Ardenne) allowed the recognition of more than 75 taxa. Their study displays the progressive evolution from an external mixed siliciclastic-carbonate ramp to a carbonate platform around the Eifelian/Givetian boundary. Ostracods from the Lomme Fm are published here for the first time. The leperditicopid ostracods are probably indicative of brackish water environments during the deposition of the Trois-Fontaines Fm, and consequently point to wet and warm climatic conditions during Early Givetian times in the Dinant Synclinorium. Their absence in widespread lagoonal environments in the upper part of the Givetian may be on the contrary related to very arid climate conditions. That important climatic change is probably in relation with the Taghanic Biocrisis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::72a1cd2199b793255bf2c4bddd658368 https://doi.org/10.1016/j.revmic.2015.04.002 Zobrazit plný text záznamu Full Text from ScienceDirect