Article
Geography, Physical
P. E. Santamarina, V. D. Barreda, A. Iglesias, A. N. Varela, C. Mays
Summary: This paper assesses changes in fossil floras during the Cenomanian-Turonian interval through palynological studies in Patagonia, South America and Chatham Islands, New Zealand. The study reveals richness peaks and species displacement in both regions, but lacks correlation with marine-based events. It also proposes a new scheme for the mid-Cretaceous palynological provinces of Southern Gondwana.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Fernanda Luft-Souza, Gerson Fauth, Mauro D. R. Bruno, Marcelo A. De Lira Mota, Bernardo Vazquez-Garcia, Marcos A. B. Santos Filho, Gerson J. S. Terra
Summary: The fossil-rich sedimentary successions in the Sergipe-Alagoas Basin provide valuable insights into the early stages of the South Atlantic Ocean development and major paleoceanographic events during the late Early Cretaceous.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geology
Sudeep Kanungo, Paul Bown, Andrew Gale
Summary: The study analyzed nannofossil biostratigraphy in outcrop samples from the Cauvery Basin, determining the geological age to be from early Albian to late Turonian. The research found that some early biozones were applicable in both sections, while others were only partially applicable due to problematic markers. Further investigation is needed to fully understand the boundary intervals and paleobiogeographic affinities of the nannofossil assemblages in the region.
CRETACEOUS RESEARCH
(2021)
Article
Geology
Fernanda Luft-Souza, Gerson J. S. Terra, Gerson Fauth
Summary: During the Early Cretaceous, extensive carbonate shelves developed in sedimentary basins in the Central Segment of the South Atlantic Ocean, characterized by mixed carbonate and siliciclastic sediments with diverse fossil content. Analysis of two cores from the Sergipe-Alagoas Basin in northeastern Brazil reveals different lithologies and sedimentation environments, indicating the evolution of marine environments. The fossil content includes planktic and benthic foraminifera, as well as macrofossils such as echinoderms and molluscs, suggesting water connections between the South Atlantic and the North Atlantic/West Tethys Sea since the late Aptian interval.
Article
Geology
Barbora Krizova, Miroslav Radon, Jan Sklenar, Martin Mazuch, Martin Kostak
Summary: This study partially refines the stratigraphic ranges of rudist genera and species in the Bohemian Cretaceous Basin and identifies additional rudist and coral species. These findings are important for stratigraphy and paleoecological reconstructions in the Cretaceous ecosystems.
CRETACEOUS RESEARCH
(2022)
Article
Paleontology
Damian E. Perez, Nicolas D. Farroni, Aylen Allende Mosquera, Jose I. Cuitino
Summary: This article reports the discovery of two new species of inarticulate brachiopods, Discinisca porvenir and Discinisca messii, in the Cenozoic deposits of Patagonia. These specimens were found in marine deposits of the Gaiman Formation in Argentina. The new species show similarities to the living D. lamellosa and D. laevis, which have a distribution in western South America.
Article
Biodiversity Conservation
Nicholas F. L. Vale, Juan C. Braga, Alex C. Bastos, Fernando C. Moraes, Claudia S. Karez, Ricardo G. Bahia, Luis A. Leao, Renato C. Pereira, Gilberto M. Amado-Filho, Leonardo T. Salgado
Summary: This study investigated the formation and distribution of Rhodolith beds on the Brazilian continental shelf off the Sergipe-Alagoas Coast. Different types of Rhodoliths were found on the seabed at different depths and substrates, and their classification and ages were determined.
Article
Geology
Bruna Poatskievick Pierezan, Andrew S. Gale, Gerson Fauth
Summary: A new genus and species of roveacrinid, Sergipecrinus reticulatus, is described from the upper Aptian and lower Albian of the Sergipe-Alagoas Basin, northeast Brazil, based on abundant cups and isolated brachials from core SER-03. This is the first roveacrinid of Aptian age to be described and provides important information concerning the early history of the Roveacrinidae.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Yves Candela, Bernard Mottequin
Summary: The systematic description of Lower Ordovician linguliformean brachiopods from the Stavelot-Venn Massif (Belgium and Germany) is presented for the first time. The material includes specimens from different formations with Tremadocian and Floian ages. The diversity of lingulide and acrotretide species is relatively high in the Solwaster Member, while the Les Plattes Member yielded only one siphonotretide species. Some of the identified taxa in this area represent the youngest and first occurrences documented in Avalonia.
Article
Geology
Mauro B. S. Lacerda, Marco B. de Andrade, Marcos A. F. Sales, Paulo R. L. Araga, Fabiana S. Vieira, Jonathas S. Bittencourt, Alexandre Liparini
Summary: The Feliz Deserto Formation in NE Brazil preserves some of the earliest fossil records of the Gondwana supercontinent break-up during the Early Cretaceous. Recent discoveries include a new spinosaurid theropod tooth and various other fossils, expanding the fossil record of spinosaurine theropods and neosuchian crocodyliforms in Gondwana. The taphonomic features of the new fossils suggest a low fluvial transport prior to burial, and the depositional paleo-environment of the Canafistula 01 locality is compatible with a deltaic system unit.
CRETACEOUS RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Maria Alcione Lima Celestino, Tiago Siqueira Miranda, Gorki Mariano, Marcio Lima Alencar, Jim Buckman, Nick M. W. Roberts, Jose Antonio Barbosa, Virginio H. M. L. Neumann, Jorge Andre Braz Souza, Eduardo Roemers-Oliveira
Summary: This study aims to understand the control of the Triunfo Fault Zone on the development of carbonate breccia pipes in the Crato Formation and constrain the timing of brittle deformation. Results suggest that polyphasic deformation in the pipes may be caused by the circulation of fluid along pre-existing faults and pipes.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Hanna Carolina Lins De Paiva, Valeria Gallo, Mauro Cavalcanti
Summary: Opportunities to examine the structure of paleocommunities are rare due to incomplete fossil records. This paper analyzes the paleoecological relationships of the paleocommunity of fishes in the Morro do Chaves Formation and their response to paleoenvironmental disturbances. The study suggests that the formation was influenced by marine incursions in the Lower Cretaceous. Multivariate analysis is discussed as a valuable tool in paleoecological studies.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Deise Marli da Silveira, Fernando Farias Vesely, Claus Fallgatter, Andreas Pauli de Castro
Summary: The Reconcavo Basin in Brazil is the third largest natural gas producer in the country, with the Maracangalha Formation holding the largest volumes of non-associated gas. However, the reservoirs in this basin are complex due to soft-sediment deformation processes that modify the depositional architecture and impact on the porous system. The cause of this deformation is still uncertain, with previous studies proposing both mass movements and post-depositional fluidization. This study aims to test these hypotheses by examining soft-sediment deformation structures in outcrop and core samples. The results suggest that upward movement of interstitial fluids was the main mechanism for remobilization, deformation, and mixing of sediments.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geology
Stanislav Cech, David Ulicny
Summary: The study characterized the Turonian-Coniacian boundary in the Bohemian Cretaceous Basin using biostratigraphy, genetic sequence stratigraphy, and carbon isotope chemostratigraphy. It found faunal markers consistent with those in Germany and Poland, providing important new data for further study of the boundary interval. The study proposed that the T-C interval in the BCB complements sections in Germany and Poland, forming a broader region for defining the T-C boundary.
CRETACEOUS RESEARCH
(2021)
Article
Geology
Guillermo J. Windholz, Mattia A. Baiano, Flavio Bellardini, Alberto Garrido
Summary: Dicraeosauridae is a family of small body-sized sauropod dinosaurs with elongated bifid neural spines on the dorsal vertebrae. The new dicraeosaurid remains discovered from the La Amarga Formation have enriched the fossil record of this group.
CRETACEOUS RESEARCH
(2021)
Article
Paleontology
Zhiliang Zhang, Zhifei Zhang, Lars E. Holmer, Feiyang Chen
Article
Evolutionary Biology
Zhiliang Zhang, Leonid E. Popov, Lars E. Holmer, Zhifei Zhang
BMC EVOLUTIONARY BIOLOGY
(2018)
Article
Paleontology
Lars E. Holmer, Leonid E. Popov, Mansoureh Ghobadi Pour, Tom Claybourn, Zhiliang Zhang, Glenn A. Brock, Zhifei Zhang
Article
Paleontology
Thomas M. Claybourn, Sarah M. Jacquet, Christian B. Skovsted, Timothy P. Topper, Lars E. Holmer, Glenn A. Brock
JOURNAL OF PALEONTOLOGY
(2019)
Article
Multidisciplinary Sciences
Leonid E. Popov, J. Javier Alvaro, Lars E. Holmer, Heikki Bauert, Mansoureh Ghobadi Pour, Andrei Dronov, Oliver Lehnert, Olle Hints, Peep Mannik, Zhifei Zhang, Zhiliang Zhang
SCIENTIFIC REPORTS
(2019)
Article
Paleontology
Bing Pan, Christian B. Skovsted, Glenn A. Brock, Timothy P. Topper, Lars E. Holmer, Luo-Yang Li, Guo-Xiang Li
Article
Evolutionary Biology
Zhifei Zhang, Lars E. Holmer, Yue Liang, Yanlong Chen, Xiaolin Duan
JOURNAL OF SYSTEMATIC PALAEONTOLOGY
(2020)
Article
Paleontology
Yue Liang, Lars E. Holmer, Christian B. Skovsted, Xiao-Lin Duan, Zhi-Fei Zhang
Editorial Material
Multidisciplinary Sciences
Yue Liang, Lars E. Holmer, Yazhou Hu, Zhifei Zhang
Article
Evolutionary Biology
Zhiliang Zhang, Lars E. Holmer, Feiyang Chen, Glenn A. Brock
JOURNAL OF SYSTEMATIC PALAEONTOLOGY
(2020)
Article
Geology
Lars E. Holmer, Robert B. Blodgett, Yue Liang, Zhifei Zhang
ESTONIAN JOURNAL OF EARTH SCIENCES
(2020)
Article
Paleontology
Lars E. Holmer, Leonid E. Popov, Mansoureh Ghobadi Pour, Inna A. Klishevich, Yue Liang, Zhifei Zhang
PAPERS IN PALAEONTOLOGY
(2020)
Article
Paleontology
Thomas M. Claybourn, Christian B. Skovsted, Lars E. Holmer, Bing Pan, Paul M. Myrow, Timothy P. Topper, Glenn A. Brock
PAPERS IN PALAEONTOLOGY
(2020)
Article
Geology
Lars E. Holmer, Liang Yue, Zhiliang Zhang, Zhifei Zhang
ESTONIAN JOURNAL OF EARTH SCIENCES
(2019)
Article
Paleontology
Lars E. Holmer, Mohammad-Reza Kebria-Ee Zadeh, Leonid E. Popov, Mansoureh Ghobadi Pour, J. Javier Alvaro, Vachik Hairapetian, Zhifei Zhang
PAPERS IN PALAEONTOLOGY
(2019)