Results 21 to 30 of about 37,390 (226)

Metamorphic Remnants of the Variscan Orogeny across the Alps and Their Tectonic Significance

Geosciences, 2023
Lithospheric slices preserving pre-Alpine metamorphic imprints are widely described in the Alps. The Variscan parageneses recorded in continental, oceanic, and mantle rocks suggest a heterogeneous metamorphic evolution across the Alpine domains.
Manuel Roda, Maria Iole Spalla, Marco Filippi, Jean-Marc Lardeaux, Gisella Rebay, Alessandro Regorda, Davide Zanoni, Michele Zucali, Guido Gosso   +8 more
doaj   +1 more source

The swimming trace Undichna from the latest Devonian Hangenberg Sandstone equivalent of Morocco

Swiss Journal of Palaeontology, 2021
Trace fossils occur in several strata of the Devonian and Carboniferous of the eastern Anti-Atlas, but they are still poorly documented. Here, we describe a fossil swimming trace from strata overlying the Hangenberg Black Shale (correlation largely based
Christian Klug, Abdelouahed Lagnaoui, Melina Jobbins, Wahiba Bel Haouz, Amine Najih   +4 more
doaj   +1 more source

Devonian–Carboniferous extension and Eurekan inversion along an inherited WNW–ESE-striking fault system in Billefjorden, Svalbard [version 2; peer review: 2 approved, 1 not approved]

Open Research Europe, 2023
Background The Billefjorden area in central Spitsbergen hosts thick Lower–lowermost Upper Devonian, late–post-Caledonian collapse deposits presumably deformed during the Late Devonian Svalbardian Orogeny.
Lis Allaart, Jean-Baptiste P. Koehl, Riko Noormets   +2 more
doaj   +1 more source

Evolution of leaf-form in land plants linked to atmospheric CO2 decline in the Late Palaeozoic era [PDF]

, 2001
The widespread appearance of megaphyll leaves, with their branched veins and planate form, did not occur until the close of the Devonian period at about 360 Myr ago.
AH Knoll, C. P. Osborne, CI Mora, D Edwards, D Edwards, D. J. Beerling, DJ Beerling, DJ Beerling, DJ Beerling, DJ Beerling, FI Woodward, G Bowes, GD Farquhar, GD Farquhar, JC McElwain, KJ Niklas, LA Martinelli, P Kenrick, PG Gensel, PG Gensel, PJ Schulte, PJ Valdes, PS Nobel, RA Berner, RA Berner, S Von Caemmerer, SG Hao, TJ Algeo, W Larcher, W Zimmermann, W. G. Chaloner, WG Chaloner, WG Chaloner   +32 more
core   +1 more source

The fate of the homoctenids (Tentaculitoidea) during the Frasnian-Famennian mass extinction (Late Devonian) [PDF]

, 2006
The homoctenids (Tentaculitoidea) are small, conical-shelled marine animals which are amongst the most abundant and widespread of all Late Devonian fossils.
Alberti GKB, Babin C, Becker RT, Blumenstengel H, Bond DPG, Boueek B, Buggisch W, Dzik J, Farsan NM, Feist R, Fisher DW, Freyer G, Grabau AW, Hajlasz B, Hallam A, Jansen U, Klapper G, Lardeux H, Li YX, Li YX, Ludvigsen R, Lutke F, Lyashenko GP, Lyashenko GP, Lyashenko GP, Lyashenko GP, McLaren DJ, Morrow JR, Over DJ, Racki G, Racki G, Raup DM, Roemer FA, Ruchholz K, Sandberg CA, Sandberg CA, Sauerland U, Schindler E, Scotese CR, Sepkoski JJ, Sherrard K, Truyols-Massoni M, Tunnicliff SP, Walliser OH, Walliser OH, Weedon MJ, Yochelson EL, Zagora K, Zhang R   +48 more
core   +1 more source

The tornoceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)

European Journal of Taxonomy, 2022
The ammonoids of the suborder Tornoceratina from the Middle to Late Devonian Red Ironstone Formation of the area around Dillenburg (eastern Rhenish Mountains) are revised, mainly based on historical collections stored in the Museum für Naturkunde ...
Dieter Korn, Jürgen Bockwinkel
doaj   +1 more source

The early gephuroceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)

European Journal of Taxonomy, 2022
The ammonoids of the suborder Gephuroceratina from the Roteisenstein (Red Ironstone) Formation of the area around Dillenburg (eastern Rhenish Mountains) are revised, mainly based on historical collections stored in the Museum für Naturkunde, Berlin. The
Dieter Korn, Jürgen Bockwinkel
doaj   +1 more source

The Truong Son, Loei-Phetchabun, and Kontum Terranes in Indochina: Provenance, Rifting, and Collisions

Frontiers in Earth Science, 2021
The three main regions of Indochina are defined as the Truong Son, Loei-Phetchabun, and Kontum terranes. The aim of this review is to integrate numerous petrological studies with sedimentary, palaeontological, and provenance studies in order to construct
Clive Burrett, Mongkol Udchachon, Mongkol Udchachon, Hathaithip Thassanapak   +3 more
doaj   +1 more source

The pharciceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)

European Journal of Taxonomy, 2021
The ammonoids of the suborder Pharciceratina from the Red Ironstone Formation of the area around Dillenburg (eastern Rhenish Mountains) are revised, mainly based on historical collections stored in the Museum für Naturkunde, Berlin.
Dieter Korn, Jürgen Bockwinkel
doaj   +1 more source

Biostratigraphy, biofacies, and palaeoecology of the Upper Devonian deposits (Khoshyeilagh Formation) based on conodonts in the northeast of Iran (around Bojnord and Jajarm) [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2021
In this study, the paleoecology, biostratigraphy, and biofacies of the Khoshyeilagh Formation hve been evaluated based on the found conodont species. The Khoshyeilagh Formation includes terrigenous-carbonate sequences, which contain conodonts of shallow ...
Fatemeh Jafarbeigloo, Mahmoudreza Majidifard, Bahaeddin Hamdi, Afshin Asghari, Mehran Arian   +4 more
doaj   +1 more source