Results 171 to 180 of about 2,004 (204)

The first Silurian chitinozoans from Severnaya Zemlya, Russian Arctic

GFF, 2012
The chitinozoan Conochitina aff. emmastensis Nestor, 1982 has been identified from the Silurian Telychian Stage, Llandovery Series, of Severnaya Zemlya, the Russian Arctic. Its presence suggests an early to late Telychian age for the strata, which is in accordance with previous biostratigraphic dating based on graptolites and conodonts.
Olga K. Bogolepova, Alexander P. Gubanov, Florentin Paris   +2 more
openaire   +1 more source

Ordovician chitinozoan zonation of Quebec and western Newfoundland

Journal of Paleontology, 1989
The purpose of this paper is to propose a chitinozoan zonation of the Ordovician of Quebec and western Newfoundland. On the basis of chitinozoan assemblages previously described from various sections, covering almost the entire Ordovician System, 22 biozones, based on first appearance of index species, are distinguished.
openaire   +1 more source

Aeronian and early Telychian chitinozoans from Central Saudi Arabia

GEO 2008, 2008
Chitinozoan occurrences from three shallow boreholes penetrating the lower Silurian Qusaiba Member in central Saudi Arabia have been calibrated against graptolitebased age control. The age of the graptolite-bearing portion of the Qusaiba Member in the Qusaiba Depression is Aeronian and assigned to the Lituigraptus convolutus Biozone.
Merrell A. Miller, Florentin Paris, Jan Zalasiewicz and Mark Williams   +2 more
openaire   +1 more source

Late Tremadocian chitinozoans and acritarchs from northwestern Argentina (Western Gondwana)

Review of Palaeobotany and Palynology, 2009
Abstract Chitinozoans and acritarchs are recorded from the Saladillo and Parcha formations of the Pascha-Incamayo area (Salta Province), Cordillera Oriental, northwestern Argentina. These organic microfossils coexist with graptolites of the Kiaerograptus , Araneograptus murrayi and Hunnegraptus copiosus biozones of early late Tremadocian and ...
G. Susana de la Puente, Claudia V. Rubinstein   +1 more
openaire   +1 more source

Latest Ordovician jawed polychaetes, chitinozoans and depositional environments of the Levín section, Prague Basin, Czech Republic

Geobios, 2023
P. Tonarová, S. Vodrážková, O. Hints, J. Nõlvak, M. Kubajko, Pavel Čáp   +5 more
semanticscholar   +1 more source

The Ordovician chitinozoan biozones of the Northern Gondwana domain

Review of Palaeobotany and Palynology, 1990
Abstract A formal biozonation is proposed for the Ordovician chitinozoans of the Northern Gondwana Domain. This palaeogeographic province, located at rather high latitudes during the Ordovician, includes southwestern Europe, central Europe, Middle-East, northern Africa and Florida.
openaire   +1 more source

Chitinozoan stratigraphy in the Ashgill and Llandovery

1988
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Middle-Upper Ordovician chitinozoans from Songliang of Qiaojia, western South China, and their biostratigraphic implications

Palaeoworld, 2021
Yan Liang, Peng Tang, Guangxu Wang, Guanzhou Yan, Qian Wang   +4 more
semanticscholar   +1 more source

Aeronian and Telychian chitinozoans from Central Saudi Arabia.

2008
A total of 58 core samples from three shallow core holes (Qusaiba-1, Baq'a-3 and Baq'a-4) penetrating the Qalibah Formation in Central Saudi Arabia have been investigated. The core samples are grey-greenish hemipelagic shale or silty-shale and yield very well-preserved and abundant Early Silurian chitinozoans.
Paris, Florentin, Miller, Merrell, Al-Hajri, Sa'Id, Zalasiewicz, Jan, Williams, Mark   +4 more
openaire   +1 more source

Peri-Gondwanan acritarchs, chitinozoans, and miospores from Paleozoic succession in the High Zagros Mountains, southern Iran: Regional stratigraphic significance and paleogeographic implications

, 2021
M. Ghavidel-syooki
semanticscholar   +1 more source