Results 31 to 40 of about 50 (50)

Katian oncoids of the lower Ordovician Lianglitage Formation in the Tarim Basin, Northwest China

Carbonates and Evaporites, 2019
This study examines oncoids and their diagenetic structures in the lower Ordovician (Katian Stage) Lianglitage Formation in the Tarim Basin, Northwest China. Oncoid morphologies range from spherical and sub-spherical to irregular. Individual oncoids generally range from 4 to 10 mm in diameter, with an average of 8 mm and a maximum of 18 mm.
Shi Pingzhou, Tang Hongming, Wang Zhengyu, Sha Xuguang   +3 more
openaire   +1 more source

ENCRINURID TRILOBITES FROM THE UPPER ORDOVICIAN (KATIAN) OF NORTHEASTERN IOWA

Geological Society of America Abstracts with Programs, 2023
Ethan Bley, Jonathan M. Adrain
openaire   +1 more source

Stromatoporoids of the Katian (Upper Ordovician) Beiguoshan Formation, North China

Journal of Systematic Palaeontology, 2023
Juwan Jeon, Stephen Kershaw, Kun Liang, Yuandong Zhang   +3 more
openaire   +1 more source

Late Ordovician (Katian) chitinozoans from northwest Saudi Arabia: Biostratigraphic and paleoenvironmental implications

Revue de Micropaléontologie, 2017
Abstract Investigation of 37 samples from continuously cored intervals of the upper part of the Quwarah Member of the Qasim Formation yielded well-preserved and diverse chitinozoan assemblages. Two biozones previously defined from the North Gondwanan Domain were recognized in the examined cores: the Tanuchitina elongata and Ancyrochitina merga.
Ahmed Al-Shawareb, Merrell Miller, Marco Vecoli   +2 more
openaire   +1 more source

A review of the Late Ordovician (Katian) Richmondian Invasion of eastern Laurentia

Palaeogeography, Palaeoclimatology, Palaeoecology, 2023
openaire   +1 more source

PALEOECOLOGY AND STRATIGRAPHY OF AN UPPER ORDOVICIAN (KATIAN) HARDGROUND

Geological Society of America Abstracts with Programs, 2016
Timothy Paton, Carlton E. Brett, Dylan J. Ward   +2 more
openaire   +1 more source

Symbiosis in brachiopods and brachiopod-attached trepostome bryozoans from the Katian of Estonia

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2023
Olev Vinn, Andrej Ernst, Mark A. Wilson, Oive Tinn, Mare Isakar, Ursula Toom   +5 more
openaire   +1 more source

Did a Katian large igneous province trigger the Late Ordovician glaciation?

Palaeogeography, Palaeoclimatology, Palaeoecology, 2010
Lefebvre, Vincent, Servais, Thomas, François, Louis, Averbuch, Olivier   +3 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   +1 more source

PALEOECOLOGY AND PALEOENVIRONMENT OF A RARE UPPER ORDOVICIAN (CINCINNATIAN; UPPER KATIAN) ECHINODERM OCCURRENCE

Geological Society of America Abstracts with Programs, 2022
Nathaniel McCarthy, Bianca Neale, Carlton Brett   +2 more
openaire   +1 more source