Results 31 to 40 of about 4,379 (215)

Microfossils from Middle Triassic beds near Mišji Dol, central Slovenia

open access: yesGeologija, 2023
Middle Triassic beds exposed along the road between Mišji Dol and Poljane pri Primskovem (Posavje Hills) comprise marlstone, tuff, volcaniclastic sandstone, and thin- to medium-bedded limestone and dolostone.
Katja Oselj   +3 more
doaj   +1 more source

Towards a revised Sandbian conodont biozonation of Baltica [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
One of the key objectives of the studies proposed by the Ordovician Subcommission is the improvement of regional stratigraphy for further advancements in global correlation.
Tõnn Paiste   +3 more
doaj   +1 more source

The Evae transgression: a major event? [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
The most extensive sea-level event of the Early Ordovician is known as the Evae transgression. During the highstand of this event, the conodont index species Oepikodus evae reached its acme and often coincided with the peak in conodont generic diversity.
Gisella M. Della Costa   +1 more
doaj   +1 more source

Upper Ordovician chronostratigraphic correlation between the Appalachian and Midcontinent basins [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Study of a subsurface core (named F688) from northern Indiana provides integrated data sets linking Katian chronostratigraphic records of the Appalachian and Midcontinent basins.
Cristiana J. P. Esteves   +7 more
doaj   +1 more source

EVIDENCE OF A GUADALUPIAN AGE FOR THE KHUFF FORMATION OF SOUTHEASTERN OMAN: PRELIMINARY REPORT

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 1998
The Guadalupian succession of the Huqf area (Sultanate of Oman) represents a mega-sequence comprising the fluvial terrigenous Gharif Formation and the overlying marine Khuff Formation. The Khuff Fm.
LUCIA ANGIOLINI   +10 more
doaj   +1 more source

On the Conodonts

open access: yesAnnals and Magazine of Natural History, 1887
n ...
Rohon, M.-M. J. V., von Zittel, K. A.
openaire   +3 more sources

Oneota Conodonts [PDF]

open access: yes, 1936
Recently discovered Conodonts in the Oneota formation of Iowa are illustrated and their stratigraphic significance is ...
Furnish, W. M.
core   +1 more source

UPPER DEVONIAN-LOWER CARBONIFEROUS CONODONTS FROM CHIANG DAO CHERTS, NORTHERN THAILAND

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2006
In Northern Thailand, radiolarites (radiolarian cherts) are very common and their study provides an important tool to understand the regional geology and moreover to localise the suture zone(s).
CARINE RANDON   +4 more
doaj   +1 more source

Preliminary Report on Conodonts of the Meramecian Stage (Upper Mississippian) from the Subsurface of Western Kansas [PDF]

open access: yes, 1963
Conodonts are microscopic toothlike and platelike structures belonging to an extinct, unknown group of marine animals which probably were bilaterally symmetrical, soft bodied, and free swimming.
Goebel, Edwin D., Thompson, Thomas L.
core   +1 more source

Upper Sandbian–lower Katian bio- and chemostratigraphy in the Pajevonys-13 core section, Lithuania [PDF]

open access: yesEstonian Journal of Earth Sciences, 2016
The succession of five formations (Auleliai, Vilučiai, Alvitas, Šakiai, Jakšiai) corresponding to the upper Sandbian and lower Katian in southern Lithuania is dated based on new bio- and chemostratigraphical data from the Pajevonys-13 core section.
Linda Hints   +4 more
doaj   +1 more source

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