Results 21 to 30 of about 203 (97)

Middle Devonian ichnofossils from Hamar Laghdad (eastern Anti-Atlas, Morocco) [PDF]

Swiss Journal of Palaeontology
This article provides a description of the invertebrate trace fossils from the Hamar Laghdad region of Tafilalt in Morocco. These ichnoassemblages occur in Middle Devonian marly limestone layers, which are characterised by varying clastic content and ...
Wahiba Bel Haouz, Abdelouahed Lagnaoui, Christian Klug, Lahssen Baidder, Mehdi Maanan   +4 more
doaj   +3 more sources

The Variable Impact of Heinrich Events on the Benthic Environment of the Porcupine Abyssal Plain

Paleoceanography and Paleoclimatology, Volume 41, Issue 5, May 2026.
Abstract Heinrich events (HEs) are Pleistocene climate disturbances caused by massive freshwater discharges from the Laurentide Ice Sheet via the Hudson Strait. They appear in marine sediments as layers of ice‐rafted detritus (IRD) and significantly impact the benthic environment.
Olmo Miguez‐Salas, Francisco Javier Rodríguez‐Tovar, Francisca Martinez‐Ruiz, Javier Dorador, Brian Bett, Miros Charidemou, Jennifer M. Durden   +6 more
wiley   +1 more source

Ichnotaxonomy, biostratigraphy and palaeoecology of the Monti Pisani tetrapod ichnoassociation (Tuscany, Italy) and new insights on Middle Triassic Dinosauromorpha

, 2021
The Middle Triassic is a key time span for understanding the evolution of archosaurs and the rise of Dinosauromorpha. A further source of information on this issue may be provided by the study of tetrapod footprints.
Belvedere M., Collareta A., Leonardi G., Marchetti L.   +3 more
core   +1 more source

Paleoenvironmental Stasis for the Bioturbating Community During the Paleocene‐Eocene Thermal Maximum at the Southern Iberian Margin

Geobiology, Volume 24, Issue 3, May/June 2026.
ABSTRACT During the Paleocene‐Eocene Thermal Maximum (PETM), there was an increase in global temperatures and emissions of isotopically depleted carbon, resulting in a negative carbon isotope excursion (CIE). This climatic event caused a widespread ocean deoxygenation, leading to substantial biotic turnover.
Olmo Miguez‐Salas, Francisco J. Rodríguez‐Tovar, Victoriano Pujalte   +2 more
wiley   +1 more source

Neoichnology and sediment distribution in tidal flats of the mud‐dominated mesotidal Mira River estuary (Portugal)

Sedimentology, Volume 72, Issue 7, Page 2201-2238, December 2025.
ABSTRACT Invertebrate burrow morphologies and distributions are presented for the tidal flats of the middle and lower reaches of the tide‐influenced (mesotidal), mud‐dominated Mira River estuary (SW Portugal) as an analogue for interpreting the ichnology of palaeoestuarine successions.
Alina Shchepetkina, Teresa Drago, Jacqueline Santos, Ana Alberto, Francisco Fatela, Maria da Conceição Freitas   +5 more
wiley   +1 more source

A tale of two end members: Tidal deposits in a semi‐arid, low subsidence, open coastal setting versus a high runoff, high subsidence, restricted environment

The Depositional Record, Volume 10, Issue 5, Page 720-747, November 2024.
Tidalites accumulate during all phases of sea‐level change but most probably enter the rock record in settings characterised by high rates of accommodation creation. A comparison of a forced regressive, semi‐arid, open coastal tidal system to a transgressive, humid climate in a restricted tidal environment reveals key similarities and differences in ...
Anton F.‐J. Wroblewski, Ronald J. Steel, Emma A. Morris, Jon Schueth   +3 more
wiley   +1 more source

Electronic supplementary material from New Middle to? Late Jurassic dinosaur tracksites in the Central High Atlas Mountains, Morocco

, 2023
Besides bones, fossil tracks and trackways are important sources of knowledge about dinosaur palaeobiology. Here, we report three new tracksites from two different synclines in the Imilchil area, Central High Atlas, Morocco.
Kawtar Ech-charay (17019694), Khadija Boumir (17019691), Ahmed OUSSOU (17019688), Richard J. Butler (9698948), André Charrière (17019697), Driss Ouarhache (11505045), Peter L. Falkingham (7335677), Susannah C. R. Maidment (9698927)   +7 more
core   +1 more source

Sedimentary environment and benthic oxygenation history of the Upper Cretaceous Austin Chalk Group, south Texas: An integrated ichnological, sedimentological and geochemical approach

Sedimentology, Volume 71, Issue 4, Page 1149-1192, June 2024.
ABSTRACT Oxygen concentration in the ocean is vital for sustaining marine ecosystems. While the potential impacts of deoxygenation on modern oceans are hard to predict, lessons can be learned from better characterizing past geological intervals formed under a greenhouse climate.
Charlie Y. C. Zheng, Charles Kerans, Luis A. Buatois, M. Gabriela Mángano, Lucy T. Ko   +4 more
wiley   +1 more source

BALANOGLOSSITES-DOMINATED ICHNOFABRICS AND DIAGENETIC OVERPRINT IN THE EARLY EMSIAN LIMESTONE-DOMINATED SUCCESSION OF THE PRAGUE SYNFORM

Rivista Italiana di Paleontologia e Stratigrafia
The ichnofossil record of the early Emsian limestone-dominated succession in the Prague Synform, including the Bohemian Graptolite Event beds, was studied with a focus on ichnofabric development and its sedimentological and diagenetic implications.
Radek Mikuláš, HEDVIKA WEINEROVÁ, TOMÁŠ WEINER, LADISLAV SLAVÍK, JINDŘICH HLADIL   +4 more
doaj   +1 more source

Ichnotaxonomy and paleobiology of a bird track assemblage from the Miocene Vinchina Formation of La Rioja Province, Argentina

Acta Palaeontologica Polonica
This study examines the bird ichnoassemblage of the Miocene Vinchina Formation (La Rioja Province, Argentina), recorded in fluvio-lacustrine environments.
Martin E. Farina, Verónica Krapovickas, Claudia A. Marsicano   +2 more
doaj   +1 more source