Results 81 to 90 of about 9,274 (231)

A NEW SPECIES OF THE DEVONIAN ACTINOPTERYGIAN FISH MOYTHOMASIA FROM BELARUS

open access: yesRivista Italiana di Paleontologia e Stratigrafia
A new species of early actinopterygian fishes, Moythomasia lebedevi sp. nov., is described based on numerous isolated scales occurring in Middle Devonian (Givetian, Polotskian Regional Stage) marine deposits (Goryn, Stolin and Moroch Beds) of Belarus ...
DMITRY PLAX   +2 more
doaj   +1 more source

Palaeoeology sedimentology and depositional environments of the middle lias of North Yorkshire. [PDF]

open access: yes, 1984
PhDThe shallow marine Yorkshire Middle Lias (Lower Jurassic) sequence comprises two formations, the lowermost (Staithes Formation) consisting of interbedded bioturbated siltstones and thin sheet sandstones and the uppermost (cleveland Ironstone ...
Howard, Andrew Stephen
core  

Facies and sequence stratigraphy of the tamet formation (middle eocene), eastern sirte basin, Libya [PDF]

open access: yes, 1995
The middle Eocene Tamet Formation on the eastern side of the Sirte Basin, is largely shallow-marine carbonate platform-to-basin transition formed along passive margin.
El Hassi, Aiyad Mohamed
core  

Chondrichthyan spines from the Famennian (Upper Devonian) of Russia [PDF]

open access: yes, 2020
© 2020 Polish Academy of Sciences. All rights reserved. Lebedev, O.A., Ivanov, A.O. and Linkevich, V.V. 2020. Chondrichthyan spines from the Famennian (Upper Devonian) of Russia. Acta Geologica Polonica, 70 (3), 339–362. Warszawa.
Lebedev O.A.   +5 more
core  

Eifelian (Middle Devonian) to Early Frasnian (Late Devonian) conodonts and strata in the Spanish Central Pyrenees: Global correlations and effects of climatic fluctuations in the biota [PDF]

open access: yes
The interval between the late Eifelian and early Frasnian was marked by significant paleoenvironmental instability, including major evolutionary, eustatic, and biotic events.
Valenzuela Ríos, José Ignacio   +1 more
core   +1 more source

Famennian (Upper Devonian) stromatolite reefs at Shatang, Guilin, Guangxi, South China [PDF]

open access: yes, 2004
Stromatolites occurred in many reef complexes throughout the Phanerozoic, and microbial communities played an important role in both ancient and modern stromatolite reefs.
Webb, GE   +5 more
core   +1 more source

Specific features of carbon and oxygen stable isotopes (δ13C and δ18O) geochemistry in the isolated carbonate platform section on the east of the Urals (the Famennian and Tournaisian Stages)

open access: yesЛитосфера, 2016
New data about the stable carbon and oxygen isotopic composition for the Frasnian/Famennian and Devonian/Carboniferous boundary intervals, as well as for middle and upper parts of the Tournasian Stage (the Lower Carboniferous), are represented in this ...
G. A. Mizens   +4 more
doaj   +2 more sources

UPPER DEVONIAN CONODONT BIOSTRATIGRAPHY OF SHAMS ABAD SECTION, KERMAN PROVINCE, IRAN

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2011
The study of the conodont fauna from the Upper Devonian Shams Abad section provides new data on the stratigraphy of the Bahram Formation in the Kerman province, in southeastern Iran.
ALI BAHRAMI   +3 more
doaj   +1 more source

Conodonts from near the Middle/Upper Devonian boundary in North Cornwall

open access: yes, 1970
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Biostratigraphic analysis of core samples from wells drilled in the Devonian shale interval of the Appalachian and Illinois Basins [PDF]

open access: yes, 1978
A palynological investigation was performed on 55 samples of core material from four wells drilled in the Devonian Shale interval of the Appalachian and Illinois Basins.
Martin, S. J., Zielinski, R. E.
core   +1 more source

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