Results 91 to 100 of about 893 (201)

A Hirnantian deep-water refuge for warm-water ostracods in Baltoscandia

, 2015
The latest Ordovician is marked by a severe climate change, the Hirnantian glaciation. This climatic event affected many marine taxa including ostracods. Rich and abundant ostracod assemblages of the Baltic Palaeobasin were severly impoverished.
Meidla, T., Truuver, K.
core  

Post-glacial Hirnantian (upper Ordovician) bryozoans from western Argentina: implications for survival and extinction patterns [PDF]

, 2014
Two bryozoan taxa occurring in the Hirnatian (Upper Ordovician) deposits in western Argentina document a first postglacial community associated with a mid-to high-latitude brachiopod assemblage, known as the typical Hirnantia fauna, in the Argentine ...
Halpern, Karen, Carrera, Marcelo Gabriel
core   +1 more source

The Hirnantian graptolites Normalograptus persculptus and 'Glyptograptus' bohemicus: stratigraphical consequences of their synonymy

, 1996
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Štorch, Petr, Loydell, David K
openaire   +2 more sources

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

Hirnantian Glaciation

, 2023
Chuanlong Mou, Xiuping Wang, Qiyu Wang, Xiangying Ge, Bowen Zan, Kenken Zhou, Xiaowei Chen, Wei Liang   +7 more
openaire   +1 more source

Lithofacies paleogeography of the Ordovician and its petroleum exploration potential in the Middle-Upper Yangtze Area, South China

Petroleum
Based on the drilling, logging and field analysis, this paper discusses the lithofacies paleogeography of the Ordovician and its petroleum potential in the Middle-Upper Yangtze Area, South China.
Wenzheng Li, Hua Jiang, Xiaodong Fu, Yuan He, Mingfeng Gu, Nan Su, Shiyu Ma, Shugen Liu, Yongxiao Wang, Xuefei Yang   +9 more
doaj   +1 more source

Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction. [PDF]

Sci Adv, 2022
Kozik NP, Young SA, Newby SM, Liu M, Chen D, Hammarlund EU, Bond DPG, Them TR, Owens JD.   +8 more
europepmc   +1 more source

High palaeolatitude (Hodh, Mauritania) recovery of graptolite faunas after the Hirnantian (end Ordovician) extinction event

Marine shales directly overlying lower Hirnantian (uppermost Ordovician) glacially related sediments in Mauritania (North-West Africa) have produced a rich graptolite fauna spanning the Ordovician-Silurian boundary in an area of high palaeolatitude.
Underwood, Charlie J., Ghienne, J.F., Deynoux, M.   +2 more
core  

Characteristics, distribution, and origin of ferruginous deposits within the Late Ordovician glaciogenic setting of Arabia. [PDF]

Sci Rep, 2023
Alqubalee A, Salisu AM, Bello AM, Al-Hussaini A, Al-Ramadan K.   +4 more
europepmc   +1 more source

Carbon and nitrogen isotope records of the Hirnantian glaciation [PDF]

, 2009
The Hirnantian mass extinction was the second largest of the Phanerozoic. A global sea level fall resulting from a glaciation on Gondwanaland caused significant changes in ocean circulation patterns and nutrient cycling that is recorded as a worldwide ...
LaPorte, Dan F
core