Article
Geography, Physical
Jongsun Hong, Jino Park, Daecheol Kim, Eunhyun Cho, Seung-Min Kim
Summary: This study analyzes the constructional style and environmental conditions of middle Tremadocian patch reefs in Korea and assesses the temporal-spatial patterns of Furongian-Lower Ordovician reefs. The results reveal the transition of reef development during the Early Ordovician and the rapid occupation of deeper subtidal ecospace by microbial-anthaspidellid consortia. These findings contribute to understanding the early Great Ordovician Biodiversification Event and its relationship with the Top Skullrockian Isotopic Carbon Excursion.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
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
Geography, Physical
Thomas Servais, David A. T. Harper, Wenhui Wang
Summary: This special issue presents different perspectives on the Ordovician radiations, featuring 16 selected papers that provide insights into the various radiations that occurred during the Ordovician Period. The study suggests that the Cambrian and Ordovician radiations are actually artificially separated by the late Cambrian 'Furongian Biodiversity Gap', and a long-term early Palaeozoic radiation is becoming more visible.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Arpad David, Alfred Uchman, Ricardo S. Ramalho, Jose Madeira, Carlos S. Melo, Patricia Madeira, Ana Cristina Rebelo, Bjoern Berning, Markes E. Johnson, Sergio P. Avila
Summary: Pliocene body fossils from Santa Maria Island in Azores have been studied for decades, with recent attention focusing on ichnofossils. Deposits from the Baia de Nossa Senhora section contain well-preserved invertebrate borings, providing insights into the dispersal of benthic faunas. The borings, belonging to various ichnogenera, suggest that the bearing bioclasts have been exposed for several years on the sea floor.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
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
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
Multidisciplinary Sciences
Jan Audun Rasmussen, Nicolas Thibault, Christian Mac Orum Rasmussen
Summary: Evidence from 469-million-year-old Palaeozoic era suggests a link between orbital changes and climatic- and biotic variations, indicating a universal orbital control in modulating climate and biodiversity accumulation through geological time. The study decouples millennia-scale climate and biodiversity change from a meteorite shower that occurred 468.4 million years ago.
NATURE COMMUNICATIONS
(2021)
Article
Geology
Olev Vinn, Lars E. Holmer, Mark A. Wilson, Mare Isakar, Ursula Toom
Summary: A steinkern of an endoceratid nautiloid siphuncle contains a Trypanites sozialis boring with a lingulate brachiopod Rowellella sp. shell inside. The formation of the lithified steinkern might have occurred partly in the seawater or after exhumation, which allowed colonization by boring organisms. This bioerosion resulted in numerous Trypanites borings in the siphuncle. The vacant boring was later colonized by a small lingulate brachiopod, which was preadapted to life in hard substrate borings and benefited from increased availability and predation pressure during the Late Ordovician GOBE.
Article
Geology
Aram Bayet-Goll, Mahmoud Sharafi, Mehdi Daraei, Yaghub Nasiri
Summary: The distribution of conventional subichnofacies in deep-water fan systems can be influenced by changes in flow state between laminar and turbulent conditions. This study investigated the effects of hybrid sediment gravity flows on the distribution and composition of trace fossils in the Ordovician Ghelli Formation. It was found that the presence of cohesive flows reduced ichnodiversity and density of bioturbation, and trace fossils were limited to simple feeding strategies.
Article
Environmental Sciences
Stanislaw Leszczynski, Michal J. Warchol, Wojciech Nemec
Summary: This study examines the Aptian lower part of the Carolinefjellet Formation in the Norwegian high Arctic using well cores and outcrop sections. It focuses on the deposits and bioturbation structures of an ancient subpolar marine shelf during a period of global greenhouse climate. The study reveals that sedimentation conditions and benthic fauna activity were influenced by harsh Arctic wave climate and base-level changes, including occasional incursions of cold polar water. The research also highlights the impact of seafloor hydraulic regime, oxygenation, wave climate, and relative sea-level changes on the ichnofauna ecology.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Review
Anthropology
Kevin G. Hatala, Neil T. Roach, Anna K. Behrensmeyer
Summary: Hominin footprints have traditionally not been considered important in paleoanthropological studies. However, in recent years, their discovery frequency has increased significantly, providing important new clues for studying human anatomy, locomotion, behaviors, and environments.
EVOLUTIONARY ANTHROPOLOGY
(2023)
Article
Geography, Physical
Ruo-ying Fan, Rui-wen Zong, Yi-ming Gong
Summary: Trace fossils provide unique evidence of the body plan and behavioral complexity of animals, with a diverse ichnoassemblage discovered from deep-marine deposits in Inner Mongolia, North China during the Middle-Upper Ordovician period. The complex trace fossils suggest distinct behavioral complication and novelty in deep-sea communities during this time, possibly reflecting an evolution towards more delicate, geometric, and efficient feeding patterns. The Late Ordovician period may represent a peak in ichnodiversity and behavioral complexity of deep-sea ichnofauna, reflecting the complex interplay of biodiversity, biomass, and ecological changes during this time.
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
Geography, Physical
Ge Zhu, Qiao Lyu, Minghao Du, Weihui Wang
Summary: This study utilized computational fluid dynamics to construct simplified computer models of 92 Ordovician chitinozoan species and assessed the long-term changes in hydrodynamic properties. The results show that chitinozoans gradually increased their floating ability during evolution, consistent with the idea of increased planktonic diversity during the Great Ordovician Biodiversification Event (GOBE). It was also found that structural innovations in chitinozoans were influenced by hydrodynamics, indicating the importance of hydrodynamic pressure in the evolution of Ordovician microplankton.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Biology
Karma Nanglu, Madeleine E. Waskom, Jared C. Richards, Javier Ortega-Hernandez
Summary: Evidence of interspecific interactions in the fossil record is rare but can provide valuable insights into ancient ecosystems. A recent discovery in the Fezouata Shale of Morocco reveals an exceptional cross-phylum interspecific interaction, with tube-dwelling organisms found on the phragmocone of a cephalopod fossil. This finding highlights the scarcity of benthic graptolites in the Fezouata Shale and reveals a 480-million-year-old association of pterobranchs as epibionts of molluscs, a relationship that persists to this day.
COMMUNICATIONS BIOLOGY
(2023)
Article
Paleontology
Blanca A. Toro, Facundo R. Meroi Arcerito, Diego F. Munoz, Beatriz G. Waisfeld, G. Susana de la Puente
Article
Geosciences, Multidisciplinary
Juan L. Benedetto, Diego F. Munoz
BULLETIN OF GEOSCIENCES
(2015)
Article
Paleontology
Diego F. Munoz, Juan L. Benedetto
ACTA PALAEONTOLOGICA POLONICA
(2016)
Article
Evolutionary Biology
Juan L. Benedetto, Diego F. Munoz
JOURNAL OF SYSTEMATIC PALAEONTOLOGY
(2017)
Article
Geosciences, Multidisciplinary
Juan L. Benedetto, Fernando J. Lavie, Diego F. Munoz
GEOLOGICAL JOURNAL
(2018)
Article
Paleontology
Facundo Rene Meroi Arcerito, Beatriz G. Waisfeld, N. Emilio Vaccari, Diego F. Munoz
Article
Geosciences, Multidisciplinary
Sandra Gordillo, Diego F. Munoz, Maria Sol Bayer, Mariano E. Malve
JOURNAL OF MARINE SYSTEMS
(2018)
Article
Paleontology
Maria Jose Salas, Beatriz G. Waisfeld, Diego F. Munoz
Article
Paleontology
Diego F. Munoz, M. Gabriela Mangano, Luis A. Buatois
Article
Geology
Sol Bayer, Diego Balseiro, Diego F. Munoz, Sandra Gordillo
Article
Geosciences, Multidisciplinary
Romain Vaucher, N. Emilio Vaccari, Diego Balseiro, Diego F. Munoz, Antoine Dillinger, Beatriz G. Waisfeld, Luis A. Buatois
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2020)
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)
Article
Paleontology
Sol Bayer, Diego F. Munoz, Alec Aitken
Summary: This study aims to identify Oichnus ichnospecies in bivalve shells to reveal the possible gastropod predators that were not recorded in Quaternary sediments from the Canadian High Arctic. The results showed the presence of Oichnus simplex and O. paraboloides in the shells, which could be produced by predatory gastropods belonging to the Naticidae and Muricidae families.
Article
Paleontology
Sol Bayer, Julieta C. Nobile, Diego F. Munoz, Enrique M. Morsan, Gisela A. Moran, Enrique Fucks, Sandra Gordillo
Summary: This study described the taphonomic signature on shells of Glycymeris longior from the San Matias Gulf and provided insights into the spatial variation of taphonomic processes influenced by the environment. The results showed differences in shell fragmentation, rounding, and cementation intensities due to variations in water flow. The findings contribute to future taphonomic comparisons and understanding of the taphonomic processes and environmental influences.
