Results 101 to 110 of about 1,497,171 (212)

Bucaniidae (Gastropoda) from the Upper Ordovician of Norway

open access: yesNorsk Geologisk Tidsskrift, 1999
Fourteen species of bellerophontoid gastropods of the Family Bucaniidae are described from the Upper Ordovician succession of the Oslo Region, Norway. Bucania sp. is compared with several species of Bucania that stand out morphologically by having a median dorsal carina, moderate to wide umbilici and an ornamentation consisting of crenulated growth ...
openaire   +1 more source

Attempted predation and shell repair in Middle and Upper Ordovician gastropods from Sweden

open access: yes, 1997
Repaired shell injuries are reported in 11 specimens including six genera and eight species of gastropods from the upper Middle Ordovician (Caradoc) Kullsberg Limestone and the Upper Ordovician (Ashgill) Boda Limestone, Siljan district, Sweden.
Peel, John S.,, Ebbestad, Jan Ove R.,
core  

Acritarchs from the Upper Ordovician of Southern Holy Cross Mountains, Poland [PDF]

open access: yes, 2001
Acritarchs and prasinophyceans belonging to eleven genera have been found in the Upper Ordovician (Ashgill) deposits from Zalesie Nowe (Holy Cross Mountains, southern Poland).
Kremer, B
core  

Upper Iowa University Catalog; Upper Iowa University Bulletin

open access: yes
[Title], Upper Iowa University Digital Archives, [Reference URL]. See 'About' page for more information;Digitized 600 dpi 48-bit color tiff, saved as jpeg, edited with Windows Live Photo ...
Upper Iowa University
core   +1 more source

The Ordovician Period [PDF]

open access: yes, 2016
The Ordovician Period extends in time from 505 million years ago until 438 million years ago. You will remember from our discussions of the Cambrian that the Ordovician Period of time and the Ordovician System ofrocks was suggested by Professor Lapworth ...
Renton, John J, Repine, Thomas
core  

Stratotypical sections of the Upper Ordovician Khoreyver basin (Timan-Pechora region) [PDF]

open access: yesНефтегазовая геология: Теория и практика
Descriptions of stratotypic and hypostratotypic sections of the Upper Ordovician of the Khoreyver Basin are given. The stratotypes of the Malomakarikha, Bagan and Muker Formations were established in the section of the Zapadno-Makariha (Srednemakarikha ...
Shamsutdinova L.L.   +5 more
doaj  

A paleoecological trophic network model of the Early Ordovician Lower Fezouata Shale (Morocco) fossil fauna. [PDF]

open access: yesiScience
Soucy CP   +6 more
europepmc   +1 more source

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