Results 91 to 100 of about 692 (139)

PALYNOLOGICAL STUDY OF PALEOZOIC SEDIMENTS OF THE CHAL-I-SHEH AREA, SOUTHWESTERN IRAN [PDF]

Journal of Sciences, Islamic Republic of Iran, 1993
The Paleozoic sediments of the Chal-i-Sheh area in southwestern Iran comprising of Mila Formation, Ilebek Formation and Faraghan Formation, were studied palynologically. The samples containing well-preserved palynomorphs include acritarchs, chitinozoans,
doaj  

Chitinozoa from Lower Ordovician strata of the Georgina Basin, Queensland (Australia)

, 1988
A chitinozoan faunule is reported from a shallow-marineLower Ordovician sequence in the subsurface of the southeastern Georgina Basin, Queensland (Australia).
Miller, M. A., Playford, G.
core   +1 more source

Chitinozoans from the Telychian (Llandovery, Silurian) Shenxuanyi Member, upper Ningqiang Formation of the northwestern Yangtze Platform, China

Swiss Journal of Palaeontology
Silurian strata are well-developed in the northwest margin of Yangtze Platform. A total of 117 densely spaced argillaceous samples were taken from the Shenxuanyi Member, upper Ningqiang Formation to the lowermost Chejiaba Formation of the Majia section ...
Yangui Li, Chunbo Yan, Chuanshang Wang, Jörg Maletz, Yan Liang, Huazhou Yao, Haizhi Wu, Weixiong Chen, Jingqing Cheng, Zichen Fang, Xiaofeng Wang   +10 more
doaj   +1 more source

Marine and non-marine palynomorphs from the Ordovician sequence of Takche Formation, Spiti, India

Journal of the Palaeontological Society of India
The palynological investigation of a sequence of the Takche Formation (Middle Ordovician–Early Silurian), Spiti region in the Tethyan Himalaya, reveals new perspectives into Ordovician micro-faunal and floral diversity, palaeoenvironments ...
HUSAIN SHABBAR, SUYASH GUPTA, ANJU SAXENA, KAMAL JEET SINGH   +3 more
doaj   +1 more source

Metal-induced malformations in early Palaeozoic plankton are harbingers of mass extinction. [PDF]

Nat Commun, 2015
Vandenbroucke TRA, Emsbo P, Munnecke A, Nuns N, Duponchel L, Lepot K, Quijada M, Paris F, Servais T, Kiessling W.   +9 more
europepmc   +1 more source

Evaluation of the Preservation of Chitinozoans in a Case Study of the Katian?—Hirnantian Succession, Eastern Precordillera of Argentina

The poor preservation state of chitinozoans recovered from samples of the La Pola (Sandbian–Katian) and Don Braulio formations (Hirnantian-Llandovery), after being processed with standard methods, required significant modifications in processing ...
Jessica Gómez, Leonardo Silvestri, Mercedes di Pasquo   +2 more
core   +1 more source

Palynological age constraint of Les Vilelles unit, Catalan Coastal Chain, Spain

Geologica Acta, 2015
Les Vilelles unit is a detrital sequence exposed at the southwestern margin of the Catalan Coastal Chain (CCC), NE Spain, below the Carboniferous turbiditic series.
F. GONZÁLEZ, C. MORENO, J.C. MELGAREJO, R. SÁEZ   +3 more
doaj  

UV-B radiation was the Devonian-Carboniferous boundary terrestrial extinction kill mechanism. [PDF]

Sci Adv, 2020
Marshall JEA, Lakin J, Troth I, Wallace-Johnson SM.   +3 more
europepmc   +1 more source

The nature of Ordovician limestone-marl alternations in the Oslo-Asker District (Norway): witnesses of primary glacio-eustasy or diagenetic rhythms? [PDF]

Sci Rep, 2016
Amberg CE, Collart T, Salenbien W, Egger LM, Munnecke A, Nielsen AT, Monnet C, Hammer Ø, Vandenbroucke TR.   +8 more
europepmc   +1 more source

Earth's Impact Events Through Geologic Time: A List of Recommended Ages for Terrestrial Impact Structures and Deposits. [PDF]

Astrobiology, 2020
Schmieder M, Kring DA.
europepmc   +1 more source