Results 41 to 50 of about 339 (151)

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

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

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  

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

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

Cambrian Trace Fossil Zoophycos from the Czech Republic

Geologica Carpathica, 2015
Lobate and helical ichnofossils attributable to Zoophycos found in Middle Cambrian shales of the Palác Hill in the Železné Hory Mountains (eastern Bohemia) represent the oldest occurrence of this ichnogenus.
Doucek Jan, Mikuláš Radek
doaj   +1 more source

Formation, preservation, and interpretation of dinosaur tracks

Palaeontology, Volume 69, Issue 1, January/February 2026.
Abstract The fossilized tracks of dinosaurs were first reported in the scientific literature in 1836, not long after Buckland's discovery of Megalosaurus. Tracks record aspects of dinosaur locomotion, diversity, and ecology. To recover this information from a track requires an understanding of the track forming process.
Peter L. Falkingham, Stephen M. Gatesy
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