Results 171 to 180 of about 1,784 (228)

Late Ordovician (late Katian) cryptospores and chitinozoans from the Mannan-1 borehole, south Tarim Basin, China [PDF]

Palaeoworld, 2017
Well-preserved cryptospore and chitinozoan assemblages were recovered from the Tierekawati Formation (late Katian, Late Ordovician) of the Mannan-1 borehole, south Tarim basin (Tarim Block), China.
Hong-He Xu, Qing Jiang, Xiao-Le Zhang
exaly   +2 more sources

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Shallow-water trilobites from the Koumenzi Formation (Katian, Upper Ordovician) of Qilian, northeastern Qinghai, China: Biogeographical links with Kazakh terranes

Palaeoworld
Ren-Bin Zhan
exaly   +2 more sources

Bryozoan fauna of the Upper Ordovician (Katian) of Alnif, Morocco

Palaeobiodiversity and Palaeoenvironments, 2015
Bryozoan fauna was discovered within the glaciogenic sediments of an Ordovician (Hirnantian) tunnel valley infill near Alnif, Morocco where it had been redeposited from the upper Tiouririne Formation (Ktaoa Group, Katian). This fauna contains four species—one esthonioporine, two trepostomes and one rhabdomesine cryptostome—of which three are new ...
Andrej Ernst, Andrea Jiménez-Sánchez, Lahssen Baidder   +2 more
openaire   +1 more source

PALEOECOLOGY AND DEPOSITIONAL ENVIRONMENT OF THE UPPER ORDOVICIAN (KATIAN) MARTINSBURG FORMATION ON THE SHAWANGUNK RIDGE

Geological Society of America Abstracts with Programs, 2023
Howard R. Feldman, Carl Brett, Robert B. Blodgett, Melanie J. Hopkins   +3 more
openaire   +2 more sources

The taphonomy of a trilobite fauna from an uppermost Katian echinoderm Lagerstätte in South West Wales [PDF]

Fossils and Strata, 2019
Summary: The uppermost Katian (Rawtheyan) Slade and Redhill Mudstone Formation, in the Llanddowror area of Carmarthenshire in South West Wales, contains an horizon yielding abundant, articulated crinoids, cystoids, mitrate ‘carpoids’, asteroids and ...
Patrick D Mcdermott
exaly   +2 more sources

Productivity and redox influences on the late Ordovician ‘Katian Extinction’ and ‘early Silurian Recovery’

Palaeogeography, Palaeoclimatology, Palaeoecology
Can Chen, Jiasheng Wang, Xiaohong Chen, Thomas J. Algeo, Zhou Wang, Wenwu Yang, Qiang Song   +6 more
openaire   +2 more sources

The oldest heliolitids from the early Katian of the East Baltic region

GFF, 2012
The earliest heliolitids appeared more or less simultaneously in the Late Ordovician shallow seas of different palaeocontinents. In this paper the early Katian heliolitids, represented by the genus Protaraea, are described from the East Baltic region (North Estonia and north-west Russia) and discussed in detail for the first time.
Mari-Ann Mõtus, Yury Zaika
openaire   +1 more source

Stromatoporoids from the Upper Ordovician (Katian) Koumenzi Formation of North Qilian Mountains, China

Palaeoworld
Juwan Jeon, Yu-Chen Zhang, Stephen Kershaw, Ren-Bin Zhan   +3 more
openaire   +2 more sources

Katian (Late Ordovician) trilobites of the North Qilian Mountains and their palaeogeographical implications for the Proto‐Tethys Archipelagic Ocean

Papers in Palaeontology, 2023
Trilobites from the middle Koumenzi Formation (Katian, Upper Ordovician) of the North Qilian Mountains, Menyuan, northeastern Qinghai Province are systematically documented for the first time.
Xin Wei, Xiaocong Luan, Yuchen Zhang, Guanzhou Yan, Renbin Zhan   +4 more
semanticscholar   +1 more source

STROMATOPOROID-ECHINODERM ECOLOGICAL SUCCESSIONS IN THE LATE ORDOVICIAN (KATIAN): REEF FACIES AND THE ROLE OF KEY BIOTA IN REEF ARCHITECTURE

Palaios, 2023
: Ecologically complex buildups within the Kimmswick Limestone of the Galena Group (Upper Ordovician, Katian) near St. Louis, Missouri, display unique communities of stromatoporoids, encrusting cyathocystid and edrioblastoid edrioasteroids, camerate and ...
J.M. Wittmer, C.E. Brett, J. Chiarello, T. Guensburg, G. Darrough, C. Stock   +5 more
semanticscholar   +1 more source