Article
Multidisciplinary Sciences
Min Wang, Thomas A. Stidham, Zhiheng Li, Xing Xu, Zhonghe Zhou
Summary: The study describes a new enantiornithine bird from the Early Cretaceous in China, revealing the components of cranial kinesis and highlighting the highly modular and mosaic evolution of avialan skulls. Early birds not only had major innovations in their locomotor system, but also evolved highly derived skulls.
NATURE COMMUNICATIONS
(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
Multidisciplinary Sciences
Soki Hattori, Masateru Shibata, Soichiro Kawabe, Takuya Imai, Hiroshi Nishi, Yoichi Azuma
Summary: Ornithomimosauria, a group of dinosaur that mimic ostriches, has recently been studied to understand their evolutionary history. The discovery of fossil remains in Japan has provided important insights into their early history. The new species Tyrannomimus fukuiensis represents the earliest known deinocheirid and expands our understanding of Ornithomimosauria. The osteological similarity with Aviatyrannis jurassica also suggests a wider temporal and biogeographic range for Ornithomimosauria.
SCIENTIFIC REPORTS
(2023)
Article
Geology
Matteo Antonelli, Fabio Massimo Petti, Jacopo Conti, Enrico Sacco, Marco Petruzzelli, Luigi Spalluto, Alexander Wagensommer
Summary: The lower Albian track-bearing surface of the San Leonardo quarry in Apulia, Italy, contains more than 800 footprints from both quadrupedal and bipedal dinosaurs. The footprints are attributed to medium-to large-sized theropod dinosaurs and are morphologically similar to specimens from Switzerland and North Africa. A new ichnospecies, Jurabrontes melphicticus, has been proposed based on unique characters. Additionally, the quadrupedal trackway and isolated manus-pes sets are identified as belonging to a medium-sized ankylosaurian trackmaker.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Lida Xing, Martin G. Lockley, Guangzhao Peng, Hendrik Klein, Yong Ye, Anthony Romilio, Shan Jiang, Chang Liu, Yu Liu, W. Scott Persons
Summary: This article reports the discovery of dinosaur tracks in the courtyard of a restaurant in Leshan City, Sichuan Province, China, which gained international attention due to its unusual location. Detailed analysis revealed that these tracks originated from the Jiaguan Formation, a track-rich area in the Lower Cretaceous period, and they are typical Brontopodus type sauropod tracks, representing the saurischian dominated ichnofauna of the Sichuan Basin during this epoch. Furthermore, studies on the weathering of the Leshan Buddha at Mount Lingyun, a world heritage site located only 5.5 km away from the restaurant, showed similar lithologies that allowed estimation of weathering rates.
CRETACEOUS RESEARCH
(2023)
Article
Multidisciplinary Sciences
Chris T. Barker, Darren Naish, Neil J. Gostling
Summary: Isolated spinosaurid teeth from the Lower Cretaceous Wealden Supergroup in southern England have been found to be more taxonomically diverse than previously thought. A recent study uses phylogenetic, discriminant, and cluster analyses to examine an isolated spinosaurid tooth, and concludes that it cannot be referred to Baryonyx. The study also reviews the records of early spinosaurids in Britain and globally, and revisits the evidence for post-Cenomanian spinosaurid persistence.
Article
Geology
Juan Pablo Garderes, Pablo Ariel Gallina, John Andrew Whitlock, Nestor Toledo
Summary: The study of the braincase, cranial endocast, and inner ear of diplodocid sauropods has deepened our understanding of neuroanatomy of South American sauropods.
CRETACEOUS RESEARCH
(2022)
Article
Multidisciplinary Sciences
Harsha Dhiman, Vishal Verma, Lourembam R. Singh, Vaibhav Miglani, Deepak Kumar Jha, Prasanta Sanyal, Sampat K. Tandon, Guntupalli V. R. Prasad
Summary: The Upper Cretaceous Lameta Formation in central India is known for its abundant sauropod fossils and egg remains. A new study has documented ninety-two titanosaur clutches from the Dhar District, providing valuable quantitative data for understanding titanosaur palaeobiology and egg preservation. The study identified 256 eggs and three types of clutch patterns, suggesting a high oospecies diversity and providing insights into the reproductive biology of titanosaurs. The lithologies of the egg-bearing rocks indicate a fluvial/alluvial setting, and the presence of certain fabric structures suggests a palustrine depositional condition.
Article
Geology
Xuri Wang, Andrea Cau, Zhengdong Wang, Kaifeng Yu, Wenhao Wu, Yang Wang, Yichuan Liu
Summary: A new small-bodied theropod dinosaur, Migmanychion laiyang gen. et sp. nov., is identified in Inner Mongolia, China. It shares certain hand features with other theropods and shows a close relationship with Fukuivenator paradoxus from Japan. While it is confidently referred to Maniraptora, additional material is needed to determine its precise placement among bird-like theropods.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Ismar de Souza Carvalho, Giuseppe Leonardi
Summary: Dinosaur tracks have been discovered in the Rio do Peixe basins in western Paraiba, Brazil, with a total of 39 individual tracksites. These tracks are found in 98 stratigraphic levels, and the Triunfo basin is one of the sub-basins in the area. So far, only a few footprints and trackways have been identified, belonging to theropods and ornithopods.
CRETACEOUS RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Lida Xing, Martin G. Lockley, Yongzhong Tang, Hendrik Klein, W. Scott Persons, Miaoyan Wang, Xingwen Li, Hao Wu
Summary: The study focuses on multiple theropod trackway segments found in the Lower Cretaceous Luohe Formation of Shaanxi Province, China. By analyzing the direction, morphology, and preservation of the tracks, it is suggested that these animals lived in an arid environment and may have existed in small social groups.
GEOSCIENCE FRONTIERS
(2021)
Article
Multidisciplinary Sciences
Christopher T. Griffin, Brenen M. Wynd, Darlington Munyikwa, Tim J. Broderick, Michel Zondo, Stephen Tolan, Max C. Langer, Sterling J. Nesbitt, Hazel R. Taruvinga
Summary: This study reports a new Carnian assemblage from Zimbabwe, including Africa's oldest definitive dinosaurs Mbiresaurus raathi. This finding suggests the existence of similar vertebrate fauna at high latitudes in Antarctica, and the dispersal of dinosaurs was influenced by paleolatitude-linked climatic barriers.
Article
Multidisciplinary Sciences
Lucas E. Fiorelli, Agustin G. Martinelli, Joao Ismael da Silva, E. Martin Hechenleitner, Marcus Vinicius Theodoro Soares, Julian C. G. Silva Junior, Jose Carlos da Silva, Elbia Messias Roteli Borges, Luiz Carlos Borges Ribeiro, Andre Marconato, Giorgio Basilici, Thiago da Silva Marinho
Summary: Titanosaurs were herbivorous dinosaurs that were widely distributed during the Cretaceous period, with South America being the most diverse region. Their success can be attributed to various physiological and ecological factors, as well as the morphological traits they acquired throughout their evolutionary history. Titanosaurs exhibited nesting behaviors in different paleoenvironments, which played a crucial role in their success.
SCIENTIFIC REPORTS
(2022)
Article
Geology
P. Navarro-Lorbes, I. Diaz-Martinez, J. M. Valle-Melon, A. Rodriguez-Miranda, J. J. Moratalla, M. Ferrer-Ventura, R. San Juan-Palacios, A. Torices
Summary: The reconstruction of behavioural patterns in non-avian dinosaurs is crucial for understanding their interactions with the environment. This study presents a new tracksite in Spain with 27 swimming tracks from the Lower Cretaceous. The tracks provide evidence of non-avian dinosaurs' ability to interact with shallow water environments and contribute to the understanding of swimming track morphologies.
CRETACEOUS RESEARCH
(2023)
Article
Multidisciplinary Sciences
Stephen F. Poropat, Timothy G. Frauenfelder, Philip D. Mannion, Samantha L. Rigby, Adele H. Pentland, Trish Sloan, David A. Elliott
Summary: This study presents the first description of sauropod teeth from the Upper Cretaceous Winton Formation in Queensland, Australia. The teeth resemble those of early branching members of the titanosauriform radiation, supporting a 'basal' titanosaurian position for Diamantinasauria. A comprehensive review of the early titanosauriform global record reveals a transition in tooth morphotypes from diverse at the start of the Berriasian to limited dental variability dominated by titanosaurs by the end-Turonian.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Zoology
Elena Cuesta, Daniel Vidal, Francisco Ortega, Masateru Shibata, Jose L. San
Summary: This study provides a new, detailed description of the postcranial skeleton of Pelecanimimus, the first ornithomimosaur discovered in Europe. The analysis reveals several shared derived features and a unique combination of characters, leading to the definition of a new clade. Pelecanimimus played a key role in the evolution of the manus and pectoral girdle in ornithomimosaurs.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2022)
Article
Biodiversity Conservation
Jose Miguel Gasulla, Fernando Escaso, Ivan Narvaez, Jose Luis Sanz, Francisco Ortega
Summary: This study describes a new specimen of Iguanodon bernissartensis from Spain and confirms its classification based on unique characteristics. The findings further enhance our understanding of the widespread presence of styracosternan ornithopods in the Morella Formation.
Article
Geology
Adrian Paramo, F. Escaso, P. Mocho, F. Marcos-Fernandez, J. L. Sanz, F. Ortega
Summary: This study analyzed the geometric morphometrics of sauropod titanosaurs' hind limb bones from Lo Hueco, revealing the presence of two main morphotypes. It is difficult to accurately classify and identify appendicular remains based on morphological information, making geometric morphometrics a suitable method to explore morphological variability.
CRETACEOUS RESEARCH
(2022)
Article
Biology
Francisco Ortega, Ildefonso Armenteros, Ane de Celis, Fernando Escaso, Pedro Huerta, Santiago Martin de Jesus, Ivan Narvaez, Adan Perez-Garcia, Jose Luis Sanz
Summary: The Palaeogene sedimentary successions of the Duero Basin in northwestern Iberia contain important fossil records of vertebrates, including mammals and reptiles. Continued study of these sites is helping improve the understanding of chronostratigraphy and correlations between the western and eastern regions of the basin, as well as providing valuable insights into the diversity and phylogenetic relationships of the represented fauna.
HISTORICAL BIOLOGY
(2022)
Article
Microbiology
Ricardo Amils, Cristina Escudero, Monike Oggerin, Fernando Puente Sanchez, Alejandro Arce Rodriguez, David Fernandez Remolar, Nuria Rodriguez, Miriam Garcia Villadangos, Jose Luis Sanz, Carlos Briones, Monica Sanchez-Roman, Felipe Gomez, Tania Leandro, Mercedes Moreno-Paz, Olga Prieto-Ballesteros, Antonio Molina, Fernando Tornos, Irene Sanchez-Andrea, Kenneth Timmis, Dietmar H. Pieper, Victor Parro
Summary: Microbial activity plays a crucial role in the biogeochemical cycles of planet Earth. A study on the deep subsurface microbiome of the Iberian Pyrite Belt revealed unexpected diversity and novel activities such as anaerobic ammonium oxidation and anaerobic methane oxidation. Various complementary metabolic activities were found, and genomic analysis identified genes involved in key biogeochemical cycles.
ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Biodiversity Conservation
Elisabete Malafaia, Fernando Escaso, Rodolfo A. Coria, Francisco Ortega
Summary: The Lo Hueco fossil site in Cuenca, Spain is significant for studying Late Cretaceous continental vertebrate faunas in Europe. The site has scarce theropod dinosaur fossils, including isolated postcranial materials and teeth related to different maniraptoran clades. A partial left tibia with proximal tarsals was analyzed, suggesting it belongs to the velociraptorine dromaeosaurids, contributing to a better understanding of the European theropod fauna during the Late Cretaceous.
Article
Biodiversity Conservation
Adan Perez-Garcia, Bruno Camilo, Francisco Ortega
Summary: Hylaeochelys is the only identified thalassochelydian turtle in the Cretaceous period. It was originally discovered in the United Kingdom and Germany in the early 19th century. A new species, Hylaeochelys kappa, was found in a partial shell in West-Central Portugal a decade ago. This study presents two new specimens of Hylaeochelys from different Upper Jurassic outcrops in west-central Portugal, increasing our knowledge of the anatomy and intraspecific variability of Hylaeochelys kappa.
Article
Anatomy & Morphology
Adan Perez-Garcia, Andrea Guerrero, Santiago Martin de Jesus, Francisco Ortega
Summary: The Neochelys turtle is the most well-documented member of Podocnemididae in Europe, with eight Eocene species recorded. The youngest species, Neochelys salmanticensis, from Central Spain, is the largest known representative of this genus, with a shell reaching 50 cm in length. However, there is limited information available about this species, and its shell remains have only been found in less than 10 individuals. In this study, a detailed analysis of over 1,200 shell remains of N. salmanticensis is presented, providing a comprehensive understanding of its anatomy and intraspecific variability.
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2023)
Article
Anatomy & Morphology
Manuel J. Salesa, Gema Siliceo, Mauricio Anton, Irene Martinez, Francisco Ortega
Summary: The Hyaenodonta, the most diverse carnivorous mammals in the European Eocene, were divided into three subfamilies: Sinopaninae, Arfianinae, and Proviverrinae. However, recent cladistic analyses revealed that some of these subfamilies were paraphyletic, leading to the abandonment of this classification. The former Proviverrinae were European endemic hyaenodontids that occupied the niche of small to medium-sized predators from the Ypresian to the Priabonian. This study reports a new species of Prodissopsalis, Prodissopsalis jimenezi, which represents the youngest record of the genus and extends its chronological range.
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2023)
Article
Multidisciplinary Sciences
Enrique Penalver, David Peris, Sergio Alvarez-Parra, David A. Grimaldi, Antonio Arillo, Luis Chiappe, Xavier Delclos, Luis Alcala, Jose Luis Sanz, Monica M. Solorzano-Kraemer, Ricardo Perez-de la Fuente
Summary: Extant terrestrial vertebrates, including birds, have symbiotic relationships with insects and arachnids, but arthropod-vertebrate symbioses in the fossil record are rarely found. In this study, direct and indirect evidence of beetles feeding on feather remains from an undetermined theropod host 105 million years ago is presented. An exceptional amber assemblage was found, including beetle larval exuviae associated with feathers, along with additional amber pieces containing isolated larval exuviae. The morphological and taphonomic data suggest that these beetle larval exuviae belonged to a keratophagous species, indicating a symbiotic relationship between beetles and their Early Cretaceous relatives similar to current ecosystems.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Multidisciplinary Sciences
Alberto G. Fairen, Nuria Rodriguez, Laura Sanchez-Garcia, Patricia Rojas, Esther R. Uceda, Daniel Carrizo, Ricardo Amils, Jose L. Sanz
Summary: Tirez, a small lagoon in central Spain, has dried out completely, allowing for the study of its desiccation process as an analog to similar events on early Mars. This research examines the microbial ecology of Tirez when it was active 20 years ago, the composition of the microbial community in the dried lake sediments today, and the analysis of lipid biomarkers recovered from the sediments. The findings have implications for understanding Martian microbial communities during the wet-to-dry transition and can inform research strategies to search for possible biomarkers on Mars.
SCIENTIFIC REPORTS
(2023)
Article
Biodiversity Conservation
Andrea Guerrero, Francisco Ortega, Santiago Martin de Jesus, Adan Perez-Garcia
Summary: Turtle shells often have abnormal osseous modifications on their surface, which can threaten the survival of the organisms. The etiology and pathogenesis of these modifications in most extinct turtle shells remain unknown. This study re-analyzed shell anomalies in a Neochelys sp. individual from the middle Eocene, providing new insights and refuting previous interpretations. Detailed physical examination, direct observation, literature review, and computerized axial tomography scan were used to propose diverse causal agents and provide information on pathogenesis and healing stages of the studied shell anomalies.
Article
Public, Environmental & Occupational Health
Denise Ribeiro Barreto Mello, Francisco Ortega, Manuela Rodrigues Mueller, Paulo Cavalcante Apratto Junior
Summary: This paper presents the outcomes of qualitative research conducted with medical students of a Mental Health and Psychiatry League (LASMP). The research aimed to sensitize the students to view themselves as individuals and provide them with alternative reasoning to biomedical thinking. Through reflexive groups within the culture circle, ideas were exchanged, experiences were shared, and time was given for reflection. The analyses were carried out using the reflexivity method, which allowed for a systematic exploration of the narratives and their constructed meanings. The reflexive course on the narratives aimed to transform the students' perception of work, themselves, and mental health beyond the individual level.
CIENCIA & SAUDE COLETIVA
(2023)
Meeting Abstract
Zoology
Josef Stiegler, Andrew Moore, Shuo Wang, Elena Cuesta, John Scannella, Xing Xu, James Clark
INTEGRATIVE AND COMPARATIVE BIOLOGY
(2023)
Article
Public, Environmental & Occupational Health
Ramon Reis dos Santos Ferreira, Francisco Ortega
Summary: Since the release of the DSM-III, biological psychiatry has been applying its classification reasoning to various social phenomena, with trauma being interpreted neurobehaviorally. This study aims to analyze the transition of traumatic rationality from associating trauma with memory in the 19th century to linking it with neuroscientific research on stress in the 20th century.
CADERNOS DE SAUDE PUBLICA
(2023)
Article
Geology
Jimmy de Rooij, Sybrand A. N. Lucassen, Charlotte Furer, Anne S. Schulp, P. Martin Sander
Summary: This study presents a detailed osteohistological analysis on Triceratops horridus and Triceratops cf. prorsus specimens, aiming to understand the growth and development of ceratopsids. The analysis reveals a distinct pattern of bone tissue growth in Triceratops limb elements, but also suggests that taxonomic ambiguity between Torosaurus and Triceratops cannot be solely resolved based on histological data.
CRETACEOUS RESEARCH
(2024)
Review
Geology
J. R. Ovando-Figueroa, J. A. Moreno-Bedmar, M. Company, J. A. Jacobo-Delgado
Summary: This article presents a review of ammonoid specimens from the Berriasian and Valanginian age in Zacatecas, Mexico. The study includes updated museographic information, new images, and 3D models of the specimens. Taxonomic identification has revealed six species and two genera. Stratigraphic range data suggests that the specimens belong to the uppermost upper Berriasian to lower Valanginian interval, with several biozones identified. Additionally, a paleobiogeographic analysis indicates a clear affinity with contemporaneous ammonoid assemblages from the Mediterranean region.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Jake Kotevski, Ruairidh J. Duncan, Adele H. Pentland, James P. Rule, Patricia Vickers-Rich, Thomas H. Rich, Erich M. G. Fitzgerald, Alistair R. Evans, Stephen F. Poropat
Summary: The cranial remains of non-avian theropod dinosaurs from the Cretaceous period in Australia are poorly understood. This study presents new evidence of non-mandibular cranial material, possibly belonging to the Megaraptoridae family, and contributes to the limited knowledge of Australian Cretaceous theropod cranial remains.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Josh Jenkins Shaw, Alexey Solodovnikov, Evgeny E. Perkovsky
Summary: A fossil of the monogeneric rove beetle subfamily Trichophyinae (genus Trichophya) has been discovered in the Upper Cretaceous Taimyr amber from northern Siberia. This finding indicates the morphological differences between ancient and modern Trichophya species groups. By comparing the morphology, distribution, and habitat requirements of extant species, the taxonomy, biogeography, and paleoecology of the Trichophya in Taimyr amber can be better understood.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Martin Kostak, Frank Wiese, Zuzana Kozlova, Adam Culka, Martin Mazuch, Martin Soucek
Summary: A well-preserved fossil of an upper Cretaceous acanthoceratoid ammonite has been discovered in the Bohemian Cretaceous Basin, providing important insights into the jaw anatomy of these extinct organisms.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Gustavo Santiago, Marcelo de Araujo Carvalho, Renato Rodriguez Cabral Ramos, Sandro Marcelo Scheffler
Summary: The Santa Marta Formation in the Antarctic Peninsula is an important sedimentary sequence that provides insights into paleoenvironmental changes. The distribution of sedimentary organic matter reveals three distinct palynofacies associations and shows a progressive transgression from terrestrial to marine environments.
CRETACEOUS RESEARCH
(2024)
Article
Geology
B. J. Vazquez, D. Castanera, B. Vila
Summary: In Europe, the fossil record of sauropods in the uppermost Cretaceous is mainly found in Spain, France, and Romania. Recently, a significant discovery of titanosaurs' teeth was made in Els Nerets, Spain, which contains the largest tooth sample from the Late Cretaceous in Europe. The teeth show distinct characteristics but cannot be attributed to any known European species. Based on tooth morphology and wear facets distribution, a new taxon is proposed.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Youssef S. Bazeen, Walid G. Kassab, El Sayed M. Moneer, Gebely A. Abu El-Kheir, Mohamed K. Abdelgawad, Haitham M. Ayyad
Summary: This study investigates the Maastrichtian-Danian succession in the Abu Minqar section of the Western Desert of Egypt, using an integrated analysis of biostratigraphy and chemostratigraphy. The results suggest that regional tectonics played a substantial role in the depositional history and paleoenvironmental circumstances of the southern Tethys margin.
CRETACEOUS RESEARCH
(2024)
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
Geology
Antonio M. Casas, Arsenio Munoz, Alberto Tella, Carlos L. Liesa
Summary: This work proposes the application of magnetic surveying to study the cyclicity in sedimentary basins. Through measuring the total magnetic field and vertical magnetic gradient, the short-wavelength magnetic anomalies associated with the sedimentary sequence can be analyzed, providing information about the magnetic susceptibility and magnetic remanence of different sedimentary units. The cyclostratigraphic analysis reveals the existence of various cycles and enables the dating of the basin fill, offering new constraints for basin evolution.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Ottilia Szives, Josep A. Moreno-Bedmar, Beatriz Aguirre-Urreta, Miguel Company, Camille Frau, Mikel Lopez-Horgue, Antoine Pictet, Izabela Ploch, Christian Salazar, Ricardo Barragan, Jean -Louis Latil, Jens Lehmann, Stephane Reboulet, Emmanuel Robert
Summary: The 7th meeting of the IUGS Lower Cretaceous Ammonite Working Group discussed important changes in the geological age classification, including adjustments and improvements to the upper Tithonian-Berriasian, upper Aptian, and Albian stages. The meeting also discussed the Valanginian and Hauterivian stages, and provided discussions on zonal indices and units, emphasizing the use of interval zones and subzones.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Felix Schlagintweit, David Gercar, Bostjan Rozic
Summary: A mixed assemblage of planktonic and benthonic foraminifera has been found in the Lower Flyschoid Formation in the western part of the Slovenian Basin. These findings provide valuable insights into the biostratigraphy and paleogeographic configuration of the region during the Early to Middle Cretaceous.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Arkaprava Mukhopadhyay, Debarati Chattopadhyay, Arghya Poddar, Ranita Saha, Sachin Patil, Tushar Sonkar, Sujoy Das, Rudranil Basak, Shubhabrata Paul, Arindam Roy
Summary: Predator-prey interaction exerts significant selection pressure on the evolutionary pathways of both parties. This research presents a new dataset of gastropod drilling predation on molluscan prey from the Upper Cretaceous, highlighting the influence of drilling predation during this period. The study utilizes a hybrid method of surface sampling without physically breaking the host rock. Findings suggest that drilling predation was an established form of predation during the Late Cretaceous, yet remains understudied.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Dany Azar, Andre Nel
Summary: Lebanoaktassia curiosa is a new genus and species of strange dragonfly, representing the first Gondwanan species of the family Aktassiidae. It was found in Hjoula, Lebanon, along with two endemic dragonfly families, suggesting a possible connection to an island insular system in the Early Cretaceous.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Pablo M. Villegas, A. Martin Umazano, Marcelo Krause, Mariana Brea
Summary: Conifer fossil woods from the Campanian Puntudo Chico Formation were studied, confirming the presence of Brachyoxylon currumillii and the introduction of Cupressinoxylon sp. cf. C. artabeae in the formation. The new specimens of Podocarpoxylon mazzonii suggest that this taxon is common in the Cretaceous to Eocene floristic assemblages. The growth-ring analysis of these fossil trees indicates their development under temperate and humid conditions, with slight sensitivity from year to year and a terminal event representing a cessation or retardation of cambial activity. Other paleoclimatic proxies suggest a temperate-warm and humid depositional environment with some semi-arid events in the Puntudo Chico Formation.
CRETACEOUS RESEARCH
(2024)
