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Palaeobiogeography of the genus Latochara (fossil Charophyta) in the Upper Jurassic of Southern Europe. New data from Oléron Island (France)

Carles Martín-Closas ; Departament d’Estratigrafi a, Paleontologia i Geociències Marines, Facultat de Geologia, Universitat de Barcelona
Jean-Paul Colin
Jean-Paul Billon-Bruyat ; Section d’archéologie et paléontologie, Office de la Culture, République et Canton du Jura
Abder El-Albani ; UMR 6531 Hydrasa, UFR SFA Bâtiment Sciences Naturelles, Université de Poitiers
Jean-Michel Mazin ; UMR 5125 PEPS CNRS, France; Université Lyon 1
Johann Schnyder ; UPMC-Université Paris 06, CNRS, UMR Tectonique

Sažetak

A charophyte assemblage including Latochara tenuicostata (PECK 1937) and Mesochara gr. voluta (PECK 1937) was found in the Lower Tithonian bone-bed 148 of the stratigraphic section at the Pointe de Chassiron, Oléron Island (Charente-Maritime, Southwestern France). This bed, which is well known for its rich and diverse fauna of tetrapods, was deposited in a margino-littoral environment of Purbeckian facies in the Late Jurassic Charente palaeogulf. The occurrence of Latochara at Oléron Island is the most southern location known in the distribution of this genus during the Late Jurassic. This suggests that the boundary between the charophyte Boreal and Tethyan provinces, defined on the basis of this distribution, is not solely determined by latitudinal (i.e. thermal) factors. Ecological factors such as salinity and competition with other charophyte families are hypothesized as alternative explanations.

Ključne riječi

Charophytes; ostracods; vertebrates; Tithonian; France; bioprovinces

Hrčak ID:

30649

URI

https://hrcak.srce.hr/30649

Datum izdavanja:

22.12.2008.

Posjeta: 1.865 *