Article
Biochemistry & Molecular Biology
Ilya Bobrovskiy, Alexey Nagovitsyn, Janet M. Hope, Ekaterina Luzhnaya, Jochen J. Brocks
Summary: This article examines the gut contents of Ediacaran animals and reveals their diet strategies, as well as some physiological characteristics of these early animals.
Article
Geosciences, Multidisciplinary
Andrew D. La Croix, Korhan Ayranci, Shahin E. Dashtgard
Summary: This paper summarizes the current state of knowledge regarding animal-sediment interactions in siliciclastic shallow-marine environments. It provides insights into the behaviors of organisms in different environmental conditions and their geological features. This knowledge is important for reconstructing paleo-ecosystems and explaining sedimentary strata.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geography, Physical
Gabriel E. B. de Barros, Bruno Becker-Kerber, Daniel Sedorko, Joao Henrique Dobler Lima, Mirian L. A. F. Pacheco
Summary: The Aquidauana Formation in Brazil's Late Paleozoic Ice Age presents a unique sedimentary record with a rich ichnofossil assemblage dominated by small arthropods, reflecting low functional morphology richness and environmental stress related to glacial environments. The presence of Warvichnium and Monomorphichnus distinguishes it from other Gondwanic glacial deposits, suggesting a relationship with freshwater influence and invertebrate colonization followed by subaerial exposure.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Environmental Sciences
Rachel Przeslawski
Summary: This article documents and describes the occurrence of a unique type of lebensspuren, known as the 'spider trace', which was observed in both Western and Eastern Australia. The importance of effectively sharing similar observations to enhance our understanding of deep-sea biology is discussed.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Francisco J. Rodriguez-Tovar
Summary: The sedimentary processes and trace fossil information in deep-sea environments are crucial for studying paleoenvironmental conditions and facies, highlighting similarities and differences among various deep-sea facies.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geography, Physical
Ko Nishizawa, Kentaro Izumi
Summary: The occurrence of Phycosiphon reworking trace fossils has increased since the Cretaceous, potentially indicating an effective feeding mode for deposit-feeding Phycosiphon-producers. The higher organic carbon content of the burrow infill within sediments suggests that these deposits are a favorable feeding site. The exact factors driving Phycosiphon-producers to ingest the burrow infill buried within deeper sediments remains unclear. To address this, a new food selection model (PFF model) based on optimal foraging theory was constructed and numerical experiments were conducted using actual geological data. The results indicate that increased amount and/or size of fecal sediments may have driven the ingestion of fecal sediments by small deposit-feeding benthos, supporting the idea that buried fecal sediments serve as efficient feeding sites for deep-sea deposit-feeders since the Cretaceous onwards.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Multidisciplinary Sciences
Gerson Fauth, Henrique Parisi Kern, Jorge Villegas-Martin, Marcelo Augusto De Lira Mota, Marcos Antonio Batista dos Santos Filho, Amanda Santa Catharina, Lilian Maia Leandro, Fernanda Luft-Souza, Oscar Strohschoen Jr, Andressa Nauter-Alves, Edna de Jesus Francisco Tungo, Mauro Daniel Rodrigues Bruno, Daiane Ceolin, Simone Baecker-Fauth, Marlone Heliara Hunnig Bom, Francisco Henrique de Oliveira Lima, Alessandra Santos, Mario Luis Assine
Summary: This study reports the discovery of primeval marine incursions in the Barbalha Formation of the Araripe Basin in Brazil. Through multiple lines of evidence, including stratigraphy and various types of fossils, three short-lived marine incursions were identified. These findings have implications for the breakup of the Gondwana Supercontinent, as they represent the earliest marine-derived flooding events in the inland basins of northeastern Brazil.
SCIENTIFIC REPORTS
(2023)
Article
Biology
M. Gabriela Mangano, Luis A. Buatois, Beatriz G. Waisfeld, Diego F. Munoz, N. Emilio Vaccari, Ricardo A. Astini
Summary: The study challenges the assumption that trilobites were exclusively fully marine, presenting evidence of their presence in brackish-water settings. Trilobites with tolerance to salinity stress were able to exploit ecological advantages in marginal-marine environments, migrating into tide-dominated estuaries. This exploration into brackish waters reveals independent instances of salinity tolerance among different trilobite groups.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Review
Geography, Physical
F. Garcia-Garcia, F. J. Rodriguez-Tovar, M. Poyatos-More, L. M. Yeste, C. Viseras
Summary: This study analyzed sedimentary structures in a 50 m-thick package of terrestrial organic debris-rich sandstone bodies alternating with burrowed siltstones in the Betic Cordillera, Spain. Two types of sandbodies were identified, and the study highlights the importance of ichnological analysis for understanding hyperpycnal flows. The findings suggest the need for multi-scale analysis focusing on trace fossils and physical sedimentary signatures to improve our understanding of river-derived sustained-flow turbidites.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Korhan Ayranci, Isa E. Yildirim, Umair bin Waheed, James A. MacEachern
Summary: The automated technique proposed in this study uses deep convolutional neural networks to determine bioturbation index in cores and outcrops, providing a faster and more robust solution compared to manual classification by experts. By compiling a large dataset and training the DCNN model, high classification accuracies were achieved, marking a pioneering work in the field of ichnological analysis.
APPLIED SCIENCES-BASEL
(2021)
Article
Geosciences, Multidisciplinary
M. Gabriela Mangano, Luis A. Buatois, Robert B. MacNaughton, Soren Jensen, Romain Gougeon, Alberto Marcos, Dean Meek, Laura Pinuela, Jose Carlos Garcia-Ramos
Summary: This study reevaluates the Cambrian trace fossil Psammichnites and reinterprets the previously named Taphrhelminthopsis circularis as a variant of Psammichnites gigas. The relationships between Psammichnites and other trace fossils commonly found in Cambrian shallow-marine strata are also discussed. Recommendations for renaming some trace fossils are provided. This documentation of the preservational variability of Cambrian Psammichnites is important for accurately estimating ichnodiversity levels during the Cambrian explosion and for stratigraphic correlation.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
G. Shanmugam
Summary: The use of vertical facies models, such as the Bouma Sequence, in distinguishing different facies has inherent flaws and has ignored key features. The models fail to predict units with internal hiatus or erosional contact. The purpose of this discussion is to identify 10 fundamental problems that undermine the basic tenet of the review article on ichnological analysis of deep-marine facies.
EARTH-SCIENCE REVIEWS
(2022)
Article
Biochemistry & Molecular Biology
Sonja Wedmann, Thomas Hoernschemeyer, Michael S. Engel, Reinhard Zetter, Friogeir Grimsson
Summary: Studying the dietary preferences and behavior of fossil insects is important for understanding their ecological relationships with plants, and fossil records provide valuable information about aspects of animal behavior and ecology.
Article
Multidisciplinary Sciences
Anton F. -J. Wroblewski, Bonnie E. Gulas-Wroblewski
Summary: This study presents incontrovertible ichnofossil evidence for the utilization of brackish-water habitats by at least two mammalian species in southern Wyoming during the late Paleocene (58 Ma). It provides the first recorded Paleocene mammal trackways in the United States and only the fourth documented in the world. The findings support recent molecular phylogenetic studies regarding the origin of Cetartiodactyla near the Cretaceous-Paleogene boundary.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Shihui Lin, Xiaolong Gao, Mo Zhang, Mingxin Lyu, Caihuan Ke
Summary: The study quantified behavioral data of abalone and its predator under different predation risks and found that the movement and feeding behaviors of abalone were reduced under short-term predation risk. The concentrations of certain biochemical indicators and gene expression levels also indicated higher physiological metabolism under long-term predation risk. These findings provide insights into the origin and evolution of biological rhythms in nocturnal marine animals.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Timothy M. Cullen, Richard E. Ll. Collier, Robert L. Gawthorpe, David M. Hodgson, Bonita J. Barrett
Article
Geology
Jeff Peakall, Jim Best, Jaco H. Baas, David M. Hodgson, Michael A. Clare, Peter J. Talling, Robert M. Dorrell, David R. Lee
Article
Geography, Physical
Stephen J. Eaton, David M. Hodgson, Natasha L. M. Barlow, Estelle E. J. Mortimer, Claire L. Mellett
JOURNAL OF QUATERNARY SCIENCE
(2020)
Article
Geosciences, Multidisciplinary
Harya D. Nugraha, Christopher A. -L. Jackson, Howard D. Johnson, David M. Hodgson
JOURNAL OF THE GEOLOGICAL SOCIETY
(2020)
Article
Geosciences, Multidisciplinary
Bonita J. Barrett, David M. Hodgson, Christopher A. -L. Jackson, Christopher Lloyd, Junia Casagrande, Richard E. Ll. Collier
Summary: Interactions between footwall-, hangingwall- and axial-derived depositional systems in rift basins make stratigraphic architecture prediction challenging. Distinguishing between deposits derived from fault-scarp degradation and long-lived catchments is crucial for hydrocarbon exploration. The study emphasizes the need to consider multiple sediment sources for tectono-stratigraphic models in rift basins.
Article
Geosciences, Multidisciplinary
L. A. S. Hansen, D. M. Hodgson, A. Ponten, C. Thrana, A. Obradors Latre
Summary: The study of the Halten and Donna terraces in offshore mid-Norway reveals that sedimentation in weakly confined post-rift sub-basins is predominantly influenced by axial and transverse sources, leading to a complex stratigraphic architecture.
Article
Geology
Aurelia M-L J. Privat, David M. Hodgson, Christopher A-L Jackson, Ernesto Schwarz, Jeff Peakall
Summary: The study reveals the stratigraphic architecture of Early Jurassic strata along the Chachil Graben, documenting the sedimentological and stratigraphic expression of the syn-rift to post-rift transition, as well as variations in sediment supply and dispersal patterns across rift-related topography. The effects of sediment gravity flows on intraslope lobes are highlighted, along with the influence of inherited compaction hinges on early post-rift lobes.
Article
Geosciences, Multidisciplinary
Euan L. Soutter, Ian A. Kane, David M. Hodgson, Stephen Flint
Summary: Submarine canyons are important conduits for sediment transport, with tectonics being the dominant control on their concavity. The position of canyons and present-day onshore climate also influence their concavity.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Geology
Jaco H. Baas, Megan L. Baker, Patricia Buffon, Lorna J. Strachan, Helen C. Bostock, David Hodgson, Joris T. Eggenhuisen, Yvonne T. Spychala
Summary: A revised equation for the hindered settling of non-cohesive particles in fluids is proposed in this study, based on a large dataset from various scientific fields. This equation allows for predictions of settling velocity for different particle sizes, densities, and fluid conditions, with a focus on sediment particles in water. The study also reveals that hindered settling becomes more significant as particle size decreases, and even a small percentage of particle concentration can affect the settling behavior.
DEPOSITIONAL RECORD
(2022)
Article
Geology
Charlotte Allen, Luz E. Gomis-Cartesio, David M. Hodgson, Jeff Peakall, Juan-Pablo Milana
Summary: This study documents the evolution of two adjacent and partially contemporaneous submarine channel-fills, highlighting the formation of submarine landslides and their impact on geomorphology changes. The channels show deep incision and steep lateral margins, with the landslide material being covered by stepped basal erosion surfaces and clasts. This study provides insight into the complex sedimentary processes associated with submarine landslides and their influence on channel evolution.
DEPOSITIONAL RECORD
(2022)
Article
Geology
Hannah L. Brooks, Makoto Ito, Valentin Zuchuat, Jeff Peakall, David M. Hodgson
Summary: This article presents a rare example of an exhumed channel-lobe transition zone from an active-margin setting in Japan. The study reveals obliquity-driven glacioeustatic sea-level cycles and the impact of climate changes on stratigraphic architecture.
DEPOSITIONAL RECORD
(2022)
Article
Geology
Kevin Boulesteix, Miquel Poyatos-More, Stephen S. Flint, David M. Hodgson, Kevin T. Taylor, Rufus L. Brunt
Summary: This study investigates the sedimentology and stratigraphy of mudstones in the Laingsburg depocentre of the Karoo Basin, South Africa. It presents criteria to distinguish between slope and basin-floor mudstones and discusses their depositional processes and facies organization. The findings challenge the common attribution of deep-water mudstones to periods of sediment starvation, suggesting mud can be delivered to deep-water environments dominantly by sediment gravity flows.
DEPOSITIONAL RECORD
(2022)
Article
Geosciences, Multidisciplinary
Junia Casagrande, David M. Hodgson, Jeff Peakall, Pedro Monteiro Benac
Summary: This study investigates the evolution of a sand-prone turbidite system in offshore Brazil, proposing a new stratigraphic model to explain the resultant depositional architecture impacted by vertical and lateral deformation. The study highlights the complex stratigraphic patterns resulting from subtle dynamic slope deformation punctuated by discrete sediment supply cycles, indicating repeated cycles of fill-and-spill, tilt-and-repeat in other stepped slope systems.
Article
Geosciences, Multidisciplinary
Roxana M. M. Stanca, David M. M. Hodgson, Dave J. J. McCarthy, Estelle J. J. Mortimer
Summary: Continental break-up is often accompanied by intracontinental wrenching, leading to the formation of transform margins and transform marginal plateaus. The Falkland Plateau is an example of a transform marginal plateau, where regional wrenching resulted in a mosaic of crustal types in the Falkland Plateau Basin. The uncertainties in crustal boundaries have hindered the development of a reliable plate reconstruction of Southern Gondwana. By integrating seismic reflection, gravity, and magnetic data, an updated crustal architecture of the Falkland Plateau Basin is proposed, providing new insights into the tectonic evolution of the plateau and our understanding of such areas.
Article
Geology
Bonita J. Barrett, Rob L. Gawthorpe, Richard E. Ll Collier, David M. Hodgson, Timothy M. Cullen
DEPOSITIONAL RECORD
(2020)
