Results 11 to 20 of about 443 (143)

Labechia carbonaria Smith 1932 in the Early Carboniferous of England; affinity, palaeogeographic position and implications for the geological history of stromatoporoid-type sponges [PDF]

open access: yesJournal of Palaeogeography, 2020
Stromatoporoid sponges were very abundant during the middle Palaeozoic Era and are thought to disappear at the end of the Devonian Period in the Hangenberg Crisis.
Stephen Kershaw, Consuelo Sendino
doaj   +3 more sources

Palaeozoic stromatoporoid futures: A discussion of their taxonomy, mineralogy and applications in palaeoecology and palaeoenvironmental analysis [PDF]

open access: yesJournal of Palaeogeography, 2013
Palaeozoic stromatoporoids are calcified sponges common between Middle Ordovician and Late Devonian times in reefs and related facies. Taxonomic work is well known, but controversial because of conflict between classification schemes based on the ...
Steve Kershaw
doaj   +4 more sources

New Data on Conodonts of the Upper Devonian of the Polar Urals (Ostantsovy Section, Malaya Usa River) [PDF]

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2016
The main features of the Upper Devonian sediments on the right side of the Ostantsovy Creek (the left tributary of the Malaya Usa River) in the eastern part of the Bielsko-Eletskaya structural formational belt on the western slope of the Polar Urals have
M.A. Soboleva, D.B. Sobolev
doaj   +2 more sources

Microfacies of the Stringocephalus Beds and the stromatoporoid-bearing allo- and parabiostromal accumulations. [PDF]

open access: yes, 2022
A, B–amphiporoid peloidal limestones (wackestones-packstones) with numerous Amphipora and Stachyodes (sample 1 on Fig 5); C, D–micritic/microspar peloidal limestones (mudstones) (sample 3 on Fig 5); E, F–stromatoporoid detrital limestones (rudstones ...
Piotr Łuczyński (12557756)
core   +1 more source

Sketches of stromatoporoid assemblages visible on weathered rock surfaces. [PDF]

open access: yes, 2022
A–allobiostrome fragment representing a typical clast-supported stromatoporoid accumulation dominated by high-domical and bulbous forms with smooth surfaces and enveloping latilaminae arrangements, and with initial surfaces dominated by initial ...
Piotr Łuczyński (12557756)
core   +1 more source

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+1 more source

Stromatoporoid-coral/tubeworm intergrowths in the lowermost Silurian Varbola Formation of Estonia: first evidence of competitive interaction [PDF]

open access: yes, 2022
Tabulate corals, particularly auloporids and syringoporids, are commonly found as intergrowths in host stromatoporoids in Palaeozoic shallow marine limestones.
Kershaw, S   +5 more
core   +1 more source

Basic stromatoporoid shapes and morphometric features (after [61]). [PDF]

open access: yes, 2022
A–Basic morphotypes: laminar (L), low domical (LD), high domical (HD), extended domical (ED), highly extended domical (HED), low bulbous (LB) and high bulbous (HB); B ‒ Basic macroscopic morphometric features; C ‒ Distinction between the stromatoporoid ...
Piotr Łuczyński (12557756)
core   +1 more source

Outcrop-Based Reservoir Model of the Late-Jurassic Arabian Stromatoporoid/Coral Facies: Static Connectivity and Flow Implications During Waterflood [PDF]

open access: yes, 2022
The high porosity-high permeability Late-Jurassic stromatoporoid/coral facies of the Hanifa Formation is one of Arabia’s most complex and laterally heterogeneous reservoir strata.
Gairola, Gaurav   +10 more
core   +1 more source

Palaeoecology of corals and stromatoporoids in a late Silurian biostrome in Estonia [PDF]

open access: yesActa Palaeontologica Polonica, 2016
A middle Ludlow biostrome at Katri, western Estonia, the richest accumulation of corals and stromatoporoids in Estonia, is partly exposed in a coastal section.
Steve Kershaw, Mari-Ann Mõtus
doaj   +1 more source

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