Article
Geology
Fernando R. Rios, Ana M. P. Mizusaki, Rualdo Menegat, Isaque C. Rodrigues
Summary: This study examines the temporal and spatial relationships between fluvio-aeolian, aeolian, and volcanic systems in the southernmost part of the Parana Basin during the Late Jurassic and Early Cretaceous. By analyzing facies and architectural elements, the evolution of the volcano-sedimentary record is reconstructed.
CRETACEOUS RESEARCH
(2024)
Article
Plant Sciences
Yun Guo, Yu Zhou, Josef Psenicka, Jiri Bek, Jana Votockova Frojdova, Zhuo Feng
Summary: A new species of adpressed leptosporangiate fern, Szea yunnanensis sp. nov., is described from Yunnan Province, Southwest China. The fronds of this new species have unique characteristics such as fertile pinnules with triangular to falcate shape and abaxial sori arranged in one row on each side of the midvein.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Geology
Keith Berry
Summary: In this study, evidence is presented to show that the faulting at Madrid East and neighboring localities occurred after the K/Pg boundary.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Mattia Bonazzi, Greta Bonacina, Elisabetta Previde Massara, Andrea Piva, Paolo Scotti, Paolo Viaggi, Alessio San
Summary: This study reconstructs a 40 million year record of redox conditions using a large dataset from sedimentary sections in the Western African margin. By analyzing the changes of redox sensitive elements (RSE) in organic matter-rich sediments, the study reveals the role of depositional environments and time in shaping the marine environment. The findings show that the enrichment of RSE is influenced by both local variations and global perturbations.
CRETACEOUS RESEARCH
(2024)
Article
Plant Sciences
Gar W. Rothwell, Ruth A. Stockey
Summary: This study utilizes anatomical analysis of fossils from Vancouver Island, Canada, to support the development of a whole plant concept for the Eocene species of Gleichenia and provide data for the first organismal concept of an extinct species of Gleichenia from the Cenozoic fossil record. The findings suggest that the characteristics of the Gleicheniaceae family were present during the Cretaceous and Paleogene periods, with modern species well-established and diversifying.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Geology
Mohammad Sharfi, Mohsen Yazdi-Moghadam, Ebrahim Ghasemi-Nejad, Mehdi Sarfi, Fariba Foroughi
Summary: An integrated biostratigraphy study using various fossils was conducted on the Lower Cretaceous Sarcheshmeh Formation in NE Iran, resulting in the identification of specific biozones and the deduced age of late early Aptian (late Bedoulian) for the formation.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Jared T. Voris, Darla K. Zelenitsky, Francois Therrien
Summary: Recent research has enhanced our understanding of the diversity and paleobiogeography of caenagnathids in North America. However, the late Maastrichtian caenagnathid record remains incomplete. This study describes three isolated elements of caenagnathids found in Alberta, Canada, providing evidence for the widespread occurrence of caenagnathids in North America during the last one million years of the Cretaceous.
CRETACEOUS RESEARCH
(2024)
Article
Plant Sciences
Milan Libertin, Jiri Kvacek, Jiri Bek
Summary: This paper revises the genus Aberlemnia from the Early Devonian of Scotland based on its type-material A. caledonica and describes a new species, Aberlemnia krizii sp. nov, from the Silurian of Czechia. The study provides detailed diagnoses and highlights the differences between the two species. Aberlemnia is positioned on an evolutionary clade line leading to the Lycophytina.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Willem O. van der Knaap, Bas van Geel, Jacqueline F. N. van Leeuwen, Frans Roescher, Dick Mol
Summary: Pollen analysis of fossilized teeth from a giant deer found in The Netherlands provides insights into the diet, landscape, and climate of the specimen. The study suggests that the giant deer most likely lived during the early Eemian or an early Weichselian interstadial.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Geology
Kawan Carvalho Martins, Marcos Vinicius Lopes Queiroz, Juan Vitor Ruiz, Max Cardoso Langer, Felipe Chinaglia Montefeltro
Summary: A new baurusuchid, Aphaurosuchus kaiju, has been discovered in Southeast Brazil. Phylogenetic analysis revealed the two main lineages of Baurusuchidae and identified Ogresuchus furatus from Europe and Razanandrongobe sakalavae from Madagascar as non-baurusuchid baurusuchians.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Lucie Kunstmullerova, Martin Kostak
Summary: This study provides a paleoecological, systematical, and statistical evaluation of bivalve assemblages from the Pecinov Member in the Bohemian Cretaceous Basin, revealing the impact of the Ocean Anoxic Event (OAE2) at the Cenomanian-Turonian boundary on benthic organisms. The results show that prior to the positive shift of the 313Corg, the bivalve association is dominated by infaunal and semi-infaunal suspension feeders, with a near-absence of free-living epifaunal bivalves. In contrast, after the positive shift of the 313Corg, the assemblage suggests shallower depths and higher energy levels.
CRETACEOUS RESEARCH
(2024)
Article
Plant Sciences
Sara Saeidi Ghavi Andam, Elena Marinova, Lucia Wick, Kristin Haas, Claudia Lemmes, Manfred Roesch, Thomas Schiedek, Kim J. Krahn, Oliver Nelle, Sigrid Hirbodian, Peter Rueckert, Antje Schwalb, Matthias Hinderer
Summary: This study investigates the interaction between fire and socio-environmental developments by examining sediment archives in a medieval town and its central lake. The findings suggest that fire events have been closely linked to vegetation development from the medieval period to the present day.
VEGETATION HISTORY AND ARCHAEOBOTANY
(2023)
Article
Biology
Alexey V. Shavrin, Alexey Solodovnikov, Kristaps Kairiss, Josh Jenkins Shaw
Summary: A new species, Acrulia danica Shavrin sp. n., from late Eocene Danish amber is described and studied using X-ray micro-computed tomography. The study compares the new species with existing congeners and discusses the importance of detailed research on the fossil insect fauna of Danish amber.
HISTORICAL BIOLOGY
(2023)
Article
Biodiversity Conservation
Abdelkrim Nemra, Jugurtha Tellal, Dirk Knaust, Mohamed Bendella, Salim Belkhedim, Abdelkader Ouali Mehadji
Summary: This study analyzes the trace fossils of the Miocene succession in the northwest of the Lower Chelif Basin in Algeria. The presence of different types of burrows provides insights into the environmental conditions and sedimentation processes during that time. The findings also highlight the importance of paleogeomorphology in determining the impact of storms on the coastline.
PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS
(2023)
Article
Geography, Physical
Lidan Liu, Hengyu Liu, Zhiguo Rao, Chao Huang, Lin Zhao, Yunxia Li
Summary: By analyzing the topsoil phytolith assemblages and establishing a modern soil phytolith reference dataset, this study confirms the reliability of phytolith analysis for reconstructing the past vegetation in the mid-subtropical zone of China. The phytolith-based Holocene vegetation types are consistent with pollen-based reconstructions, and the phytolith analysis provides additional information on understory herbaceous plants and grasses.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Virgil Dragusin, Vasile Ersek, Dominik Fleitmann, Monica Ionita, Bogdan P. Onac
Summary: Winter climate variations have significant effects on both natural and human systems worldwide. A new study in Romania reveals that winter temperature variations control the stable isotope record in a stalagmite, thereby influencing precipitation and temperature changes in East-Central Europe. The study also highlights the importance of considering teleconnection patterns in understanding the combined impact of various forcing mechanisms on climate proxies.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Xiaoshuai Chen, Hongwei Kuang, Yongqing Liu, Nan Peng, Yuchong Wang, Kening Qi
Summary: Research on sedimentary characteristics and succession of eight sections of the Luoquan and Dongpo formations in western Henan Province in the southern North China Craton shows that the Luoquan glaciation in western Henan Province was a large ice sheet that extended from land to the sea and was not completely frozen but partially melted during warm periods, and temporary open-water conditions existed. Further comparison shows that the global Ediacaran glaciations also show dynamic evolution characteristics from continental to marine glaciers, which is similar to the evolution mechanism of ice sheet during the snowball Earth, and also not indicative of hard snowball Earth pattern of complete ice cover.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Zhiliang Zhang, Jimin Sun, Bin Zhang, Zhikun Ren
Summary: The tectonic evolution of the West Kunlun Mountains in the NW margin of the Tibetan Plateau during the Cenozoic is discussed based on integrated research incorporating detrital zircon U-Pb geochronology, petrography, and heavy mineral analysis. The results reveal four stages of evolution characterized by notable provenance changes. The findings suggest that the uplift of the Tianshuihai/South Kunlun terranes initiated prior to -40 Ma and the distal deposits increased abruptly since -26 Ma due to the outward growth of the Tibetan Plateau and/or regional climate change.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Mariana Valeria de Araujo Sena, Felipe C. Montefeltro, Thiago S. Marinho, Max C. Langer, Thiago S. Fachini, Andre E. Piacentini Pinheiro, Alessandra S. Machado, Ricardo T. Lopes, Romain Pellarin, Juliana M. Sayao, Gustavo R. Oliveira, Jorge Cubo
Summary: Limbs of terrestrial notosuchian crocodyliforms are characterized by a permanent parasagittal position similar to that of mammals and dinosaurs. Thus, we expect high maximal rates of oxygen consumption (i.e., high aerobic capacities). To test this hypothesis, we inferred mass-independent maximal metabolic rates (MMRs) in seven notosuchian species using the femur blood flow rate (Q; cm3 s-1) correlated with the maximal metabolic rate as a proxy. We found that notosuchians have a higher aerobic capacity than crocodylians but lower than varanid lizards.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Bowen Song, Kexin Zhang, Yi Wei, Gaolei Jiang, Tinglu Yang, Thomas J. Algeo, Jiaxuan Wang, Fang Han
Summary: This comprehensive study focuses on the early Cenozoic topography and drainage systems of central Tibet, with emphasis on the Paleogene basins along the Bangong-Nujiang Suture Zone (BNSZ). The study reveals a major shift in sediment provenance in the western segment of the BNSZ, contributing to a better understanding of the early Cenozoic topography in central Tibet.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
