Case study of acid fracturing of Ordovician geothermal reservoir in Taiyun area by Feng Xingwu, Hu Ruohan, Xing Degang, Yu Qingzhong, Chen Jiawei, Zhang Liping

“…The thermal reservoir in Taiyun area mainly consists of Ordovician and Cambrian carbonate formations. The target interval of example well contains more than 95% carbonate, being thick, argilliferous and have well-developed natural fissures and rich hot water. …”
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Phylogenetic Clustering of Origination and Extinction across the Late Ordovician Mass Extinction. by Andrew Z Krug, Mark E Patzkowsky

“…Here, we test whether there was phylogenetic selectivity in extinction and origination using brachiopod genera from the Middle Ordovician through the Devonian. Using an index of taxonomic clustering (RCL) as a proxy for phylogenetic clustering, we find that A) both extinctions and originations shift from taxonomically random or weakly clustered within families in the Ordovician to strongly clustered in the Silurian and Devonian, beginning with the recovery following the Late Ordovician mass extinction, and B) the Late Ordovician mass extinction was itself only weakly clustered. …”
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Morphology and ontogeny of some Middle Ordovician gonambonitid brachiopods from Baltoscandia by Anna A. Madison

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Small faecal pellets in Ordovician shelly fossils from Estonia, Baltoscandia by Ursula Toom, Olev Vinn, Mare Isakar, Anna Madison, Olle Hints

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Paleobiodiversity in the Darriwilian (Middle Ordovician) of the Naturtejo UNESCO Global Geopark (Portugal) by Sofia Pereira, Jorge Colmenar, Cristiana Esteves, Ícaro Dias da Silva, Miguel Pires, Carlos Neto de Carvalho

“…Middle Ordovician successions occur at Naturtejo UNESCO Global Geopark in five Variscan-folded, kilometer- to tens of kilometer-long structures. …”
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Analysis of the Ordovician Carbonate Hydrothermal Process in Tadong Area, Xinjiang, China by Wancang Tan, Yuanlin Meng, Zihui Feng, Qi'an Meng, Qiang Li, Xiandong Wang, Guorong Li, Yaguang Li

“…Hydrothermal activity played an important part in the formation of the Ordovician dolostone reservoirs in Tadong area (eastern Tarim Basin). …”
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Ordovician collections stored at the National Museum of Natural History of the NAS of Ukraine by Galyna Anfimova, Volodymyr Grytsenko

Subjects: “…ordovician…”
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The problematic lingulate brachiopod Aulonotreta from the Ordovician (Dapingian–Darriwilian) of Baltoscandia by Lars E. Holmer, Liang Yue, Zhiliang Zhang, Zhifei Zhang

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Upper Ordovician hardgrounds – from localized surfaces to global biogeochemical events by Timothy R. Paton, Patrick I. McLaughlin, Poul Emsbo, Thijs R. A. Vandenbroucke, Carlton E. Brett

Subjects: “…ordovician…”
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Ordovician conodonts from the Ban Tha Kradan area, Western Thailand by Zhongyang Chen, Wenjie Li, Xiang Fang, Chao Li, Clive Burrett, Mongkol Udchachon, Yuandong Zhang

“…During the Ordovician period, Western Thailand was part of the Sibumasu Block. …”
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Conodont biostratigraphy of the Oandu Stage (Katian, Upper Ordovician) in NE Estonia by Peep Männik

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The lower boundary of the Haljala Regional Stage (Sandbian, Upper Ordovician) in Estonia by Tõnn Paiste, Peep Männik, Jaak Nõlvak, Tõnu Meidla

“…Multi-proxy correlation is used to address the boundary of the Kukruse and Haljala regional stages across the Estonian part of the Baltoscandian Ordovician Palaeobasin. New biostratigraphic information on conodonts, chitinozoans and ostracods from the Peetri outcrop, northwestern Estonia, integrated with micropalaeontological data from five core sections all over Estonia, allows justification of the position of the stage boundary and correlation between conodont and chitinozoan biozones. …”
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Editorial: Insights on the rise of animal life from Cambrian and Ordovician Lagerstätten by Farid Saleh, Allison C. Daley, Bertrand Lefebvre, Khadija El Hariri

Subjects: “…Ordovician…”
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Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observation by P. Budil, J. Bruthansová

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Recent developments in the Upper Ordovician and lower Silurian conodont biostratigraphy in Estonia by Männik, Peep

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Mercury spikes suggest volcanic driver of the Ordovician-Silurian mass extinction by Qing Gong, Xiangdong Wang, Laishi Zhao, Stephen E. Grasby, Zhong-Qiang Chen, Lei Zhang, Yang Li, Ling Cao, Zhihong Li

“…Abstract The second largest Phanerozoic mass extinction occurred at the Ordovician-Silurian (O-S) boundary. However, unlike the other major mass extinction events, the driver for the O-S extinction remains uncertain. …”
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Possible metazoan egg fossils from the Darriwilian (Middle Ordovician) of Baltoscandia by Olle Hints, Jaak Nõlvak, Yan Liang

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The ontogeny of the Ordovician trilobite Ovalocephalus and its bearing on the affinity and evolution of the genus by Yuan, W, Zhou, Z, Siveter, D, Zhou, Z

“…Ontogenetic material of Ovalocephalus primitivus has been recovered from the Ordovician Dawan Formation (Arenig Series) of Anhui, South China. …”

Extinction intensity during Ordovician and Cenozoic glaciations explained by cooling and palaeogeography by Saupe, E, Qiao, H, Donnadieu, Y, Farnsworth, A, Kennedy-Asser, A, Ladant, J, Lunt, D, Pohl, A, Valdes, P, Finnegan, P

“…Our results support the hypothesis that intense extinction in the Late Ordovician is partially attributable to exceptionally rapid and severe cooling compared to Cenozoic events.…”

Ostracods from Upper Ordovician (Katian) carbonate lithofacies in southwest Scotland by Mohibullah, M, Afzal, J, Williams, M, Meidla, T, Siveter, D, Zalasiewicz, J

“…The Ordovician Craighead Limestone Formation of southwest Scotland was formed on a carbonate platform on the eastern tropical margin of the Laurentia palaeocontinent during the early Katian (c. 456 Ma). …”