Results 81 to 90 of about 3,102 (219)
Recent developments in the Upper Ordovician and lower Silurian conodont biostratigraphy in Estonia [PDF]
The current state of and the latest developments in the conodont-based biostratigraphical studies of Upper Ordovician and lower Silurian strata in Estonia are discussed.
Männik, Peep
doaj
Early permian phase of morphogenesis of conodonts: comparative historial analysis
Purpose of the work: study of the morphology of the Early Permian conodonts, their revision, determination of the phases of their historical development and specification of the zonal scheme. Full phylogenetic schemes are given for the first time for the
Reimers Alexey Nikolaevich
core
Polytaxonomic and monotaxonomic zonal biochronological scales in biostratigraphy
The method of increasing the correlation potential of zonal biochronological scales by creating the polytaxonomic complex characteristic of zone subdivisions is proposed. For this operation is necessary the normative zonal scale, by which biozones of the
V. V. Chernykh, N. A. Kucheva
doaj
Conodonts from the Marathon basin, Brewster County, Texas
Conodonts were discovered in the limestones of the Marathon region in the Big Bend country, Brewster County, Texas, as a result of field work during the summer of 1939.
Graves, Roy William, Jr.
core
Ordovician conodonts from the Bulltinden Formation, Motalafjella, central-western Spitsbergen
Seven samplcs from the Limcstonc and Boulder Conglomerate Members of the Bulltinden Formation have yicldcd poorly prcscrvcd conodonts. On tentative identifications Periodon aculeatus Hadding and Prioniodus cf. P.
Armstrong, Howard A. +2 more
core +1 more source
Mississippian Conodonts in Iowa
The literature on Mississippian conodonts in Iowa is reviewed. Conodont occurrences are noted from the McCraney, Prospect Hill, Hampton, Gilmore City, Burlington, Keokuk, War-saw, Spergen, St. Louis and Ste. Genevieve formations.
Anderson, W. I.
core
Lower Silurian biostratigraphy of the Viirelaid core, western Estonia [PDF]
The distribution of five groups of fossils in the upper Llandovery (Telychian) and Wenlock of the Viirelaid core section, Estonia, is presented and discussed in terms of their biozones (conodonts and chitinozoans) and mutual positions (scolecodonts ...
Nestor, Viiu +6 more
doaj
Conodonts, correlation and stratigraphy of the Plymouth limestones
This work embraces the study of the conodonts and the environments of the Plymouth Limestones (Devonian, South Devon).Widespread sampling of calcareous strata in the Plymouth area has produced conodonts indicative of high Emsian to mid-Famennian levels ...
Orchard, Michael James
core +1 more source
The Middle Carboniferous Boundary in the North of Pay-Khoy – Correlation between the Shallow- and Deep-Water Sequences [PDF]
The paper considers the Lower-Middle Carboniferous boundary interval in the sections of the Pay-Khoy carbonate parautochthone (shallow-water facies) and the Kara slate allochthone (deep-water facies) with respect to the boundary tracing criteria.
A.V. Zhuravlev, Ya.A. Vevel
doaj

