Results 21 to 30 of about 8,052 (221)

Conodont biostratigraphy of the Crawford Group, Southern Uplands, Scotland [PDF]

, 2002
Extensive new conodont collections from the Crawford Group, the oldest succession in the Southern Uplands of Scotland, support the previously documented biostratigraphical ages for the included formations.
Armstrong, Howard A., Barron, Hugh F., Floyd, James D., Tingqing, Lu   +3 more
core   +1 more source

Сonodonts from the boundary Artinskian-Kungurian deposits of Mechetlino section (Bashkortostan, the South Urals). Article II. Stratigrafic distribution of conodonts

Литосфера, 2018
The images of the species of conodonts from the section of boundary Artinskian-Kungurian deposits on by right to coast Yuryuzan River near the village Mechetlino are given and commented.
Valerii V. Chernykh
doaj   +1 more source

The role of sea-level change and marine anoxia in the Frasnian-Famennian (Late Devonian) mass extinction [PDF]

, 2008
Johnson et al. (Johnson, J.G., Klapper, G., Sandberg, C.A., 1985. Devonian eustatic fluctuations in Euramerica. Geological Society of America Bulletin 96, 567–587) proposed one of the first explicit links between marine anoxia, transgression and mass ...
Algeo, Algeo, Averbuch, Becker, Becker, Becker, Becker, Belka, Bond, Bond, Bond, Bond, Bratton, Brett, Buggisch, Buggisch, Casier, Casier, Casier, Casier, Chen, Chen, Chen, Chow, Copper, Copper, Copper, Crick, David P.G. Bond, Filer, Geldsetzer, Geldsetzer, Girard, Goddéris, Goodfellow, Hallam, Hallam, Holmes, House, Joachimski, Joachimski, Joachimski, Johnson, Johnson, Kennard, Klapper, Levman, Matyja, Morrow, Muchez, Newell, Orchard, Over, Over, Paproth, Paul B. Wignall, Playford, Playford, Playford, Pujol, Racki, Racki, Racki, Racki, Riquier, Sandberg, Sandberg, Sandberg, Sandberg, Sandberg, Sandberg, Schindler, Southgate, Stephens, Streel, Szulczewski, Szulczewski, Tribovillard, Walliser, Wang, Wignall, Wignall, Ziegler   +82 more
core   +1 more source

Microfossils from Middle Triassic beds near Mišji Dol, central Slovenia

Geologija, 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, Tea Kolar-Jurkovšek, Bogdan Jurkovšek, Luka Gale   +3 more
doaj   +1 more source

Towards a revised Sandbian conodont biozonation of Baltica [PDF]

Estonian 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, Peep Männik, Svend Stouge, Tõnu Meidla   +3 more
doaj   +1 more source

The Evae transgression: a major event? [PDF]

Estonian 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, Guillermo L. Albanesi   +1 more
doaj   +1 more source

Geologic quadrangle map no. 47 [PDF]

, 1978
Process Steps: 1. Either: a) a Portable Document Format (PDF) version of the map provided the Bureau of Economic Geology, University of Texas at Austin was converted from pdf to Tagged Image File Format (TIFF) or b) a paper map was scanned and saved in ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
core   +1 more source

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

Estonian 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, Patrick I. McLaughlin, Alyssa M. Bancroft, Thomas W. Wong Hearing, Mark Williams, Jahandar Ramezani, Poul Emsbo, Thijs R. A. Vandenbroucke   +7 more
doaj   +1 more source

The first report of South American edrioasteroids and the paleoecology and ontogeny of rhenopyrgid echinoderms [PDF]

, 2013
A new species of rhenopyrgid edrioasteroid Rhenopyrgus piojoensis sp. nov. is described form the Silurian (Lower Lud− low) Los Espejos Formation in the Precordillera of Argentina.
Heredia, Susana Emma, Mestre García, Ana Isabel, Rodríguez, Cecilia María, Sumrall, Colin D.   +3 more
core   +1 more source

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

Rivista 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, ALDA NICORA, HUGO BUCHER, DANIEL VACHARD, ALAIN PILLEVUIT, JEAN-PIERRE PLATEL, JACK ROGER, AYMON BAUD, JEAN BROUTIN, HAROUB AL HASHMI, JEAN MARCOUX   +10 more
doaj   +1 more source