Results 61 to 70 of about 3,942 (214)

Ichnological insights into deoxygenation across the Cenomanian–Turonian Boundary Oceanic Anoxic Event 2 in the northern extent of Western Interior Seaway (west‐central Alberta)

Sedimentology, Volume 73, Issue 2, Page 355-390, February 2026.
ABSTRACT In‐depth ichnological and sedimentological analyses of the Cenomanian–Turonian boundary Oceanic Anoxic Event (OAE2) from the Western Interior Seaway of west‐central Alberta reveal a persistent physico‐chemically stressed setting. The interval is characterised by a dominantly diminutive and diminished ichnological assemblage, with familiar ...
Sara K. Biddle, Murray K. Gingras
wiley   +1 more source

Isopod trackways from the Crayssac Lagerstätte, upper Jurassic, France [PDF]

, 2004
International audienceWell-preserved arthropod trackways are described from the laminated limestones of the Crayssac Lagerstätte (south-west France, Lower Tithonian).
Gaillard, Christian, Hantzpergue, Pierre, Margérard, Anne-Laurence, Mazin, Jean-Michel, Vannier, Jean,   +4 more
core   +5 more sources

Ichnological analysis and paleoenvironmental inferences of Neogene meandering fluvial deposits in Continental Rift of Southeastern Brazil

Brazilian Journal of Geology
The sedimentary basins in the Continental Rift of Southeastern Brazil (CRSB) provide an opportunity for ichnological analyses due to its well-known facies relationships and paleoenvironmental interpretations. This study reports invertebrate trace fossils
Daniel Sedorko, Claudio Limeira Mello, Renato Rodriguez Cabral Ramos, Alessandro Batezelli, Vittor Cambria, Victória Ramiro Coelho Goulart, Kimberly Silva Ramos   +6 more
doaj   +1 more source

Spatial and Seasonal Studies of Sedimentological and Neoichnological Characteristics from Mangrove areas of Karachi, Pakistan [PDF]

International Journal of Economic and Environment Geology, 2016
The purpose of this study is to appraise the physicochemical properties of mangrove sediments and their influence on neoichnological properties produced by different crab species from Korangi Creek (S1) and Sandspit backwater areas (S2 and S3), Karachi ...
Noor Us Saher, Naureen Aziz Qureshi, Asmat Saleem   +2 more
doaj  

Facies analysis provides new insights into event bed deposition in a hadal trench environment

Sedimentology, Volume 73, Issue 2, Page 441-477, February 2026.
ABSTRACT Hadal trenches preserve exceptional sedimentary archives of past geological events, yet their depositional processes remain poorly constrained. The Japan Trench captures complex earthquake‐triggered event beds that record repeated sediment‐gravity flows that deliver terrigenous and biogenic material into the trench, informing palaeoseismic ...
Mishelle Muthre, Jean‐Noël Proust, Charlotte Pizer, Ken Ikehara, Jyh‐Jaan Steven Huang, Hajime Naruse, Michael Strasser   +6 more
wiley   +1 more source

Depositional processes and stratigraphic evolution of the Campanian deltaic system of La Anita Formation, Austral-Magallanes Basin, Patagonia, Argentina [PDF]

, 2019
Coastal depositional systems are commonly classified in terms of the relative interaction of wave, tide and fluvial processes. The La Anita Formation represents the opportunity to study and better understand coastal sedimentary systems.
Cereceda, Abril, Moyano Paz, Damián, Poire, Daniel Gustavo, Tettamanti, Camila, Varela, Augusto Nicolás   +4 more
core   +2 more sources

Tunasniyoj, a dinosaur tracksite from the Jurassic-Cretaceous boundary of Bolivia

Anais da Academia Brasileira de Ciências, 2011
Here we report a superbly preserved and profusely represented five-ichnotaxa dinosaur track assemblage near Icla village, 100 km southeast of Sucre, Bolivia.
Sebastián Apesteguía, Pablo A. Gallina
doaj   +1 more source

NATURAL CASTS OF ENTOBIA FROM THE LATE CAENOZOIC OF SICILY

Rivista Italiana di Paleontologia e Stratigrafia, 2022
As with other ichnofossils, the study of the ichogenus Entobia Bronn, 1837, attributed to the activity of boring sponges, is useful to understand taphonomic processes and reconstruct paleoenvironments. Here we delineate a diverse Entobia assemblage from
Vittorio Garilli, ÁRPÁD DÁVID , STEFANO DOMINICI   +2 more
doaj   +1 more source

Expanding the Ichnofacies Model to Tidal Straits: Testing Predictions and Assessing Anomalies

Terra Nova, Volume 38, Issue 1, Page 19-26, February 2026.
ABSTRACT Trace fossils are instrumental in facies analysis, but some depositional environments remain underexplored. Cenozoic deposits in Italy have been studied to evaluate the ichnology of tidal straits. These comprise four zones: (1) strait centre, (2) dune‐bedded strait zone, (3) strait end and (4) strait margin.
Luis A. Buatois, M. Gabriela Mángano, Valentina M. Rossi, Sergio G. Longhitano, Julio Leva Lopez, Marcello Gugliotta, Domenico Chiarella   +6 more
wiley   +1 more source

Fluvial and eolian ichnofaunas from the Lower Permian of South America (Patquía Formation, Paganzo Basin) [PDF]

, 2010
The Lower Permian Patquía Formation is the youngest unit of the Paganzo Basin, western Argentina. The lower section consists of red mudstones, and fine- and coarse-grained sandstones deposited in fluvial systems with extensive and thick floodplain ...
Arccuci, A., Caselli, A., Krapovickas, V., Mancuso, A.C.   +3 more
core   +3 more sources