Article
Multidisciplinary Sciences
Arianny P. Storari, Taissa Rodrigues, Renan A. M. Bantim, Flaviana J. Lima, Antonio A. F. Saraiva
Summary: This study provides insight into a mass mayfly mortality event in the Crato Formation, revealing the biological community structure and environmental changes in this layer. The findings suggest that the palaeolake in the Crato Formation likely experienced high evaporation during dry seasons, impacting the fauna living in this setting.
SCIENTIFIC REPORTS
(2021)
Article
Anatomy & Morphology
Anna Mikhlina, Elena Vortsepneva
Summary: Nudibranchia is an order of Gastropoda with diverse dietary specializations and buccal armature morphologies. The morphology of the buccal complex in Dendronotus frondosus, a cladobranch species, was studied using various microscopy techniques. The presence of chitinous spindles in the oral tube and esophagus suggests the mollusc species consumes Cnidaria. The synthesis of the jaw plate in D. frondosus is similar to other cladobranchs, with gnathoblasts and granular endoplasmic reticulum structures. However, unlike other molluscs, D. frondosus does not have a split synthesis zone for its broad radula.
JOURNAL OF MORPHOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Nathan P. Gardiner, Mike Hall
Summary: Compression during normal continental-oceanic subduction leads to the development of a rugose subduction wedge landward of the trench within the marine forearc. Second order subduction events can disrupt these processes over several millions of years and elicit depositional responses that are discordant within the forearc stratigraphy. The synchronicity, long-term cyclicity and regional extent of these stratigraphic changes indicate that regional tectonism underpinned deposition.
EARTH-SCIENCE REVIEWS
(2021)
Article
Plant Sciences
Edlley M. Pessoa, Alexandre C. Ribeiro, Nathan A. Jud
Summary: The newly discovered fossil leaf Baderadea pinnatissecta has simple morphology similar to some herbaceous Ranunculales. By comparing the leaf architecture with ferns, gymnosperms, and similar angiosperms, the fossil is confirmed to be an herbaceous eudicot angiosperm with unique characteristics.
AMERICAN JOURNAL OF BOTANY
(2021)
Review
Geosciences, Multidisciplinary
Jesus Marugan-Lobon, Hugo Martin-Abad, Angela D. Buscalioni
Summary: Las Hoyas (Cuenca, Spain) is a unique fossil site from the Early Cretaceous period that provides important insights into the evolution of plants and animals. The site has yielded a diverse collection of plant and animal fossils, including the oldest angiosperms, small species of chondrichthyans and squamates, new theropod dinosaurs, as well as enantiornithine birds, tapejarid pterosaurs, and eutriconodont mammals. These discoveries have revealed significant information about flower development, anatomical specialization in theropod dinosaurs, flight maneuverability in early birds, the global distribution of tapejarid dinosaurs, and the development of mammalian hair. Ongoing research is focusing on linking the paleobiological information with mathematical procedures to study the ecological structure of the wetland.
JOURNAL OF THE GEOLOGICAL SOCIETY
(2023)
Article
Geology
Morten Lunde Nielsen, Mirinae Lee, Hong Chin Ng, Jeremy C. Rushton, Katharine R. Hendry, Ji-Hoon Kihm, Arne T. Nielsen, Tae-Yoon S. Park, Jakob Vinther, Philip R. Wilby
Summary: The correct interpretation of soft-bodied fossils relies on a thorough understanding of their taphonomy. This study investigates the mineral replacements in panarthropod fossils from the Sirius Passet Lagerstatte and reveals the potential impacts of deeper burial and metamorphism on fossil preservation. The study provides critical context for interpreting the Sirius Passet biota and identifies late-stage overprints in other biotas.
Article
Zoology
Elena M. Chaban, Irina A. Ekimova, Dimitry M. Schepetov, Alexei Chernyshev
Summary: This paper describes a new genus, Aglaona, which is the first abyssal genus of the family Aglajidae and includes two new species. The study used an integrative approach, combining molecular phylogenetic analyses and morphological analysis, to describe the new genus and infer its relationships. The new genus is characterized by unique features in its radula and internal shell, and shows similarity to the philinoid genus Laona. The study suggests that the reduction of shell and radula in Aglajidae occurred independently in different lineages.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2022)
Article
Geology
Anette Regelous, Stjepan Coric, Marcel Regelous, Ulrich Teipel
Summary: This study analyzed geochemical proxies for impact and volcanism at the K/Pg boundary in deep-marine sedimentary record from Germany. The results showed a sharp positive Ir peak at the boundary, while volcanic proxies had higher values in the earliest Danian. This supports the hypothesis that the impact may have triggered the largest, rapidly-erupted Deccan lava formations.
CRETACEOUS RESEARCH
(2022)
Article
Paleontology
Kazushige Tanabe
Summary: This study describes five species of Yezoites from the circum-North Pacific regions based on examination of previously described material and newly recovered specimens. These Yezoites species can be used as supplementary evidence for biozonation and correlation of the Turonian and Coniacian deposits in the North Pacific regions.
PALEONTOLOGICAL RESEARCH
(2022)
Article
Agronomy
Lukas Thiel, Marcus Mergenthaler, Verena Haberlah-Korr
Summary: Traditional farmers in north-west Germany have started to pay attention to successful control methods, target species-specific plant protection products, and strategies for avoiding resistance in integrated pest management. However, there is still a need for improvement in field controls and the use of non-chemical methods.
Article
Virology
Felicitas Bergmann, Dagmar S. Trachsel, Sabita D. Stoeckle, Joke Bernis Sierra, Stephan Luebke, Martin H. Groschup, Heidrun Gehlen, Ute Ziegler
Summary: After the introduction of West Nile virus (WNV) in eastern Germany in 2018, increasing infections have been observed in birds, equines, and humans over time, but the spread of WNV in western Germany is still unclear. A screening of equine sera from both eastern and western parts of Germany between 2018 and 2020 revealed WNV-specific antibodies in horses from the eastern part, indicating the establishment of WNV circulation in this region, whereas no WNV-specific antibodies were found in horses from the western part. The results highlight the difficulty of diagnosing WNV infection in horses based solely on clinical signs.
Article
Anatomy & Morphology
A. Mikhlina, E. Lisova, E. Vortsepneva
Summary: The morphology and formation process of the buccal armature have phylogenetic significance and are adaptive to the feeding strategy. Through the study of Cadlina laevis, we described the fine morphology and formation mechanism of the buccal armature, including the characteristics of the labial cuticle, the synthesis mechanism, the folding of the broad radula, and the division of the radular tooth formation zone.
Article
Multidisciplinary Sciences
Zhixin Sun, Fangchen Zhao, Han Zeng, Cui Luo, Heyo Van Iten, Maoyan Zhu
Summary: The discovery of the Linyi Lagerstatte in North China provides new insights into the Cambrian explosion of animals. This new lagerstatte contains well-preserved soft-bodied fossils and shows similarities with other known lagerstatten, offering a promising opportunity to study the Cambrian marine faunas.
NATIONAL SCIENCE REVIEW
(2022)
Article
Paleontology
Qiang Wang, Ya Li, Kathrin Feldberg, Yong-Dong Wang, Xiao-Ju Yang
Summary: Radula is one of the largest genera of the Porellales, with about 250 extant species, and R. heinrichsii is likely a stem group of subgenus Amentuloradula. The high degree of morphological homoplasy in the genus Radula makes it difficult to assign fossils to this taxon, highlighting the importance of profound knowledge of fossil morphology for classification.
Article
Gastroenterology & Hepatology
Christoph Leiskau, Sofia Tsaka, Lena Meyer-Ruhnke, Frauke Elisabeth Mutschler, Eva -Doreen Pfister, Elke Lainka, Ulrich Baumann
Summary: This study describes the occurrence and outcomes of acute severe non-A-E hepatitis in pediatric patients in North-West Germany over a period of more than 30 years, and analyzes the current situation in the context of the epidemic. The results show a significant increase in the incidence of acute severe hepatitis, and the current cohort has similar clinical presentations to NAEH cases in 2022 with improved outcomes compared to historic controls.
JOURNAL OF HEPATOLOGY
(2023)
Article
Paleontology
Christian Klug, Alexander Pohle, Rosemarie Roth, Rene Hoffmann, Ryoji Wani, Amane Tajika
Summary: The study describes two specimens of Syrionautilus libanoticus from the Cenomanian of Hadjoula, Lebanon, both preserving soft tissues with one imprint of the conch. The fossilized structures in the specimens are interpreted as remains of the digestive tract, central nervous system, eyes, and mantle, with the absence of arms and hood tentatively interpreted as leftovers from a predator's prey.
SWISS JOURNAL OF PALAEONTOLOGY
(2021)
Review
Paleontology
Dirk Fuchs, Rene Hoffmann, Christian Klug
Summary: The cephalopod arm armature is a key morphological innovation for the evolutionary success of Cephalopoda. Recent paleontological discoveries prompt a reassessment of the origin and homology of various structures, leading to the proposal of three different evolutionary scenarios. The conclusions challenge previous beliefs and support earlier ideas.
SWISS JOURNAL OF PALAEONTOLOGY
(2021)
Article
Biology
Alexander Pohle, Bjoern Kroeger, Rachel C. M. Warnock, Andy H. King, David H. Evans, Martina Aubrechtova, Marcela Cichowolski, Xiang Fang, Christian Klug
Summary: Despite the excellent fossil record of cephalopods, their early evolution remains poorly understood. In this study, researchers conducted a comprehensive phylogenetic analysis of Cambrian and Ordovician cephalopods and resolved existing controversies. The results revealed three major monophyletic groups, and clarified the evolutionary pathways. The study also provided insights into the application of Bayesian phylogenetic inference on morphological datasets, suggesting the use of quartet similarity metrics and posterior pruned maximum clade credibility trees for assessing support for phylogenetic relationships among relevant taxa.
Article
Geology
Jens Lehmann, H. Mark Bayliss
Summary: Tropaeum (Tropaeum) evolutum is a new species characterized by remarkably evolute coiling, with a body-chamber of rather more than half a whorl and fourteen widely spaced primaries.
CRETACEOUS RESEARCH
(2022)
Article
Multidisciplinary Sciences
Daniel Madzia, Sven Sachs, Christian Klug
Summary: Ischyrodon meriani is a little-known pliosaurid taxon based on a large tooth crown. Despite being known for almost two centuries, the specimen remains poorly researched. The study suggests that it shares similarities with Liopleurodon ferox, but due to the limited knowledge of dental variability in L. ferox and the fragmentary nature of the type specimens, it is currently best treated as a nomen dubium.
Article
Paleontology
Peter D. Ward, Job Lukas Veloso, Christian Klug
Summary: This study explores the relationship between the phragmocones of coleoid cephalopods and depth, finding that deep water-inhabiting sepiids have distinct characteristics in their phragmocones, such as more septa per length, a smaller area covered by the last chamber, smaller size, and strengthening central rib(s) on their dorsal shields. The subgenera defined by Khromov are not monophyletic clades but morphological groupings associated with depth. Additionally, the study analyzes Australian sepiid assemblages and demonstrates depth-related patterns similar to those of ammonite and/or nautiloid assemblages in the past.
SWISS JOURNAL OF PALAEONTOLOGY
(2022)
Editorial Material
Paleontology
Christian Klug, Laure Bonnaud-Ponticelli, Jaruwat Nabhitabhata, Dirk Fuchs, Kenneth De Baets, Ji Cheng, Rene Hoffmann
Summary: Sigurd von Boletzky was a renowned cephalopod researcher known for his passion, friendly personality, and publications in the field. He dedicated his life to studying the development, biology, and evolution of coleoids, while also maintaining a curiosity for other cephalopods. He passed away on September 28th, 2020 in Switzerland. This text and volume are dedicated to his memory.
SWISS JOURNAL OF PALAEONTOLOGY
(2022)
Article
Paleontology
Christian Klug, Liane Hune, Rosemarie Roth, Michael Hautmann
Summary: This study reports a relatively rare specimen of a limid bivalve with preserved soft-tissue, showing phosphatisation of organic remains. The research suggests that the adductor muscles close to the attachment are resistant to decay and can be preserved under unfavorable taphonomic conditions.
SWISS JOURNAL OF PALAEONTOLOGY
(2022)
Article
Paleontology
Celine Weber, Michael Hautmann, Amane Tajika, Christian Klug
Summary: This study evaluated whether ammonoids reacted to environmental change by changing septal thickness and found that the evolutionary response of reducing shell material in ammonoids during the ocean acidification event was preserved in their Early Jurassic descendants.
SWISS JOURNAL OF PALAEONTOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Frank Siegel, Frank Wiese, Christian Klug
Summary: This study describes ammonoid fossils from the Lower Muschelkalk of Rudersdorf, Brandenburg, Germany. The unique geographic location and high diversity of ammonoids in this area suggest that immigrants from the southeast and southwest met here. The study also revises the description of Beneckeia buchi and uses synchrotron data to analyze its early ontogeny.
BULLETIN OF GEOSCIENCES
(2022)
Article
Paleontology
Rene Hoffmann, Michael K. Howarth, Dirk Fuchs, Christian Klug, Dieter Korn
Summary: This study reviews and suggests the appropriate naming and classification for ammonoids, proposing the rank of a superorder and an order to avoid inconsistencies in cephalopod taxonomy.
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN
(2022)
Article
Ecology
Melina Jobbins, Martin Rucklin, Humberto G. Ferron, Christian Klug
Summary: Placoderms, an extinct group of jawed vertebrates, are important for understanding the evolution of jawed animals. However, due to the poor preservation of their cartilaginous axial and fin elements, our knowledge of their anatomy and ecological adaptations is limited.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Paleontology
Christian Klug, Michael Coates, Linda Frey, Merle Greif, Melina Jobbins, Alexander Pohle, Abdelouahed Lagnaoui, Wahiba Bel Haouz, Michal Ginter
Summary: During the Silurian and Devonian periods, cartilaginous fish developed specialized skeletal and dental features and improved their sensory systems. Fossils of a new species called Maghriboselache mohamezanei were discovered in Morocco, which shares key skeletal features with the iconic genus Cladoselache. Phylogenetic analysis reveals the evolutionary relationship between different shark families, indicating that the initial radiation of crown chondrichthyans occurred in the Late Devonian. The discovery of this new stem holocephalan provides insights into the sensory specialization and ecological diversity of early chondrichthyans.
SWISS JOURNAL OF PALAEONTOLOGY
(2023)
Article
Paleontology
Christian Klug, Rene Hoffmann, Helmut Tischlinger, Dirk Fuchs, Alexander Pohle, Alison Rowe, Isabelle Rouget, Isabelle Kruta
Summary: In this study, the fossilized remains of the nervous system from coleoids in the Jurassic period are described. The authors discuss hypotheses regarding the evolutionary drivers of neuroanatomical differentiation in the arm crown of coleoids and propose potential connections between habitat depth, mode of life, and the evolution of Coleoidea.
SWISS JOURNAL OF PALAEONTOLOGY
(2023)
Article
Paleontology
Merle Greif, James H. Nebelsick, Christian Klug
Summary: This study estimates the number and biomass of ammonoids preserved in the eastern Anti-Atlas region, specifically in the Tafilalt and Maider basins. The analysis of samples suggests a high abundance of ammonoids in the Famennian strata, with estimated annual accumulation and total palaeo-biomass values. The ecological role and reproductive rates of these small and abundant ammonoids from the early and middle Famennian periods are also discussed.
ACTA PALAEONTOLOGICA POLONICA
(2022)
