Article
Paleontology
Hector D. Palma-Castro, Diego A. Combita-Romero, Edwin-Alberto Cadena, Monica R. Carvalho, Fabiany Herrera
Summary: In this study, two fossil specimens originally described as plants were reevaluated and identified as hatchling turtle carapaces. These specimens represent the first evidence of hatchling marine turtles from the Aptian of northwestern South America and provide insights into the exceptional preservation of the Marine Reptile Lagerstatte of Ricaurte Alto.
PALAEONTOLOGIA ELECTRONICA
(2023)
Article
Geology
Masoud Abedpour, Massih Afghah, Mohammadsadegh Dehghanian
Summary: The Fahliyan Formation, part of the Khami Group, is an important oil resource in the lower Cretaceous strata in the Zagros area. Biostratigraphic study revealed its age to be from Berriasian to Early Barremian in the Aghar19 section.
CARBONATES AND EVAPORITES
(2021)
Article
Paleontology
Ronan Allain, Romain Vullo, Lee Rozada, Jeremy Anquetin, Renaud Bourgeais, Jean Goedert, Maxime Lasseron, Jeremy E. Martin, Adan Perez-Garcia, Claire Peyre De Fabregues, Rafael Royo-Torres, Dominique Augier, Gilles Bailly, Lilian Cazes, Yohan Despres, Aureliane Gailliegue, Bernard Gomez, Florent Goussard, Thierry Lenglet, Renaud Vacant, Mazan, Jean-Francois Tournepiche
Summary: This contribution describes the micro- and macrovertebrate fauna of Angeac-Charente in the Early Cretaceous period. The diverse fauna includes at least 38 different vertebrate taxa from all major clades, and consists of over 50,000 specimens. Angeac-Charente is home to the most diverse mixed continental bonebed and the only Lagerstatte known to date in the world, providing valuable insights into the Purbeckian paleocommunity. The fauna includes remarkable taxa such as a new ornithomimosaur, a large turiasaur, an helochelydrid turtle, and numerous mammals. The vertebrate fauna of Angeac-Charente exhibits a Purberckian character and suggests dispersal events between Africa and Europe during the Jurassic/Cretaceous transition.
Article
Humanities, Multidisciplinary
Dmitry A. Ruban, Zoya A. Tolokonnikova
Summary: Field investigations in the northwestern segment of the Greater Caucasus have led to the discovery of two new geosites representing Early Cretaceous marine deposits with abundant trace fossils. These geosites challenge previous reconstructions and provide insights into the paleogeography of the region.
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
Geosciences, Multidisciplinary
Weerakoon Achchige Panchala Weerakoon, Harinam Joshi, Neha Aggarwal, Neerja Jha, Hetti Arachchige Hemachandra Jayasena, Deepthi Yakandawala, Rohana Chandrajith, Nalin Prasanna Ratnayake, Pooja Tiwari
Summary: This study reports the first age diagnostic palynological assemblage (Late Jurassic-Early Cretaceous) of sedimentary rocks in the Andigama Basin of Sri Lanka, providing insights into the vegetation and paleoenvironmental conditions of the area approximately 300 million years ago. The palynofloral and palynofacies records suggest warm and humid climatic conditions in the region during the Late Jurassic-Early Cretaceous period, aligning with global oxygen isotopic studies.
JOURNAL OF ASIAN EARTH SCIENCES-X
(2021)
Article
Geology
Robert W. SCOTT
Summary: New radioisotopic dates have significantly recalibrated the numerical ages of Early Cretaceous strata in the Neuquen Basin. This recalibration is important for understanding the temporal framework of the region's geology.
CARNETS DE GEOLOGIE
(2022)
Article
Geosciences, Multidisciplinary
Antoine Pictet
Summary: The study conducted detailed measurements and descriptions of the Hauterivian-Barremian series in the Jura Mountains, proposing new formations and revising existing lithostratigraphic schemes. The data point to simultaneous sedimentological events in the region and provide a new perspective on the formation of lithostratigraphic units in the area.
SWISS JOURNAL OF GEOSCIENCES
(2021)
Article
Parasitology
Jose Gabriel G. Lins, Fabiana A. Almeida, Ana Claudia A. Albuquerque, Collette Britton, Alessandro F. T. Amarante
Summary: In comparison with European sheep breeds, Santa Ines sheep show greater resistance against Haemonchus contortus infections. This study found that Santa Ines lambs are able to mount a robust innate immune response at an early age and exhibit strong resistance against H. contortus infection.
VETERINARY PARASITOLOGY
(2022)
Article
Geology
A. Gil-Delgado, X. Delclos, A. Selles, A. Galobart, O. Oms
Summary: This article provides a compilation of the state of the art of the Barremian Konservat-Lagerstatte of la Pedrera de Meia site, including the acquisition of new geological data and the survey of existing type specimens. The site has attracted paleontological interest since its discovery and excavation in the late 19th century, and numerous publications and research teams have contributed to our understanding of the site. The geological frame of the site is also reviewed and potential paleontological sites are identified.
Article
Geosciences, Multidisciplinary
Satish J. Patel, Apurva D. Shitole, Jehova L. Darngawn, Jaquilin K. Joseph
Summary: The naming of the rosetted trace fossil species Dactyloidites ottoi or Haentzschelinia ottoi has been a topic of debate for many years. The phobotactic behavior of the trace makers, characterized by systematic mining and branching radial elements converging at vertical shafts, is similar in both ichnogenera. These traces have been discovered in the Berriasian marine deltaic deposits of the Jhuran Formation in India, associated with other trace fossils such as Arenicolites, Ophiomorpha, Planolites, and Rhizocorallium. Analysis of trace fossils from archives reveals the mining strategy behind the formation of Dactyloidites and Haentzschelinia traces from the Cambrian to the Holocene, with the morphological variations indicating the influence of paleobiological and paleoenvironmental factors.
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA
(2023)
Article
Engineering, Petroleum
E. O. Amon, V. S. Vishnevskaya, Yu A. Gatovsky, E. A. Zhegallo
Summary: Paleontological remains from the Bazhenovo Horizon of Western Siberia consist of macro- and microfossils, with radiolarians playing a key role in the microfossil assemblage. These fossils are used for biostratigraphic subdivision and paleoenvironment reconstruction. Other siliceous microfossils like diatoms, silicoflagellates, and acantharians have been mentioned in literature but their presence in Bazhenovo Horizon and Formation may be unreliable.
Article
Paleontology
Yoshitaka Kawakami, Ryoji Wani
Summary: In this study, the ontogenetic trajectories of shell morphology were analyzed in Cretaceous tetragonitid ammonoid specimens from Hokkaido, Japan. Similar characteristics were observed in all examined species, with two cycles of increase and decrease in septal spacing until the 30th septum during early ontogeny. The expansion rate of whorl showed changes at specific shell diameters in Gaudryceratinae and Tetragonitinae, indicating the end of their planktic phases.
Article
Geosciences, Multidisciplinary
Marie-Claire Picollier
Summary: This study examines the ammonites and belemnites fossils collected from the Vocontian Basin in southeast France during the Early Cretaceous period. Using biometric data and statistical analysis, the study identifies and defines four species, including one new species.
COMPTES RENDUS GEOSCIENCE
(2022)
Article
Geology
Luca Barale, Carlo Bertok, Anna d'Atri, Fabrizio Plana, Stefano M. Bernasconi, Gyorgy Czuppon, Lazlo Palcsu, Axel Gerdes, Daniel Birgel, Luca Martire
Summary: In the Maritime Alps, the carbonate rocks of the Provencal Domain underwent intense hydrothermal dolomitization, which was the result of large-scale hydrothermal circulation related to deep faults. New carbonate U-Pb dating and geochemical analysis provided insights into the timing and mechanisms of the hydrothermal circulation.
Article
Anatomy & Morphology
Jordan Bestwick, Andrew S. Jones, Sterling J. Nesbitt, Stephan Lautenschlager, Emily J. Rayfield, Andrew R. Cuff, David J. Button, Paul M. Barrett, Laura B. Porro, Richard J. Butler
Summary: The study focused on the skull morphology and function of the pseudosuchian reptile Effigia, revealing it to be a specialist herbivore likely feeding on softer plant material, a unique niche among the study taxa. The research found limited functional convergence with Ornithomimus and Struthio despite morphological similarities, emphasizing that superficial morphological similarity does not always imply functional and ecological convergence.
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Peter L. Falkingham, Susannah C. R. Maidment, Jens N. Lallensack, Jeremy E. Martin, Guillaume Suan, Lesley Cherns, Cindy Howells, Paul M. Barrett
Summary: The article describes the rare Late Triassic large tetrapod tracks found on the shoreline near Penarth, south Wales, UK, as well as the digital mapping of site erosion during 2009-2020 using historical photogrammetry. The loss of over 1 meter of the surface exposure and the deterioration of the tracks highlight the transient and vulnerable nature of fossil resources, emphasizing the importance of efficient data collection.
GEOLOGICAL MAGAZINE
(2022)
Article
Biochemistry & Molecular Biology
David J. Button, Laura B. Porro, Stephan Lautenschlager, Marc E. H. Jones, Paul M. Barrett
Summary: The extent to which evolution is deterministic is a topic of debate in biology. Fossil records provide crucial information for this debate, but data for extinct taxa are limited. By analyzing the skulls of early-diverging ornithischian dinosaurs, researchers discovered that different adaptations of the feeding apparatus led to similar performance levels, demonstrating that phenotypic evolution is not necessarily predictable.
Article
Biochemistry & Molecular Biology
Alfio Alessandro Chiarenza, Amy M. Waterson, Daniela N. Schmidt, Paul J. Valdes, Chris Yesson, Patricia A. Holroyd, Margaret E. Collinson, Alexander Farnsworth, David B. Nicholson, Sara Varela, Paul M. Barrett
Summary: The study shows that terrestrial and fresh-water turtles experienced latitudinal range contraction in response to major climatic changes from the Late Cretaceous to the Paleogene. By using ecological niche modeling and climate models, the researchers reconstructed turtle niches and predicted their range shifts in different climate scenarios. The findings suggest that turtle ranges are predicted to expand poleward in the Northern Hemisphere, with decreased habitat suitability at lower latitudes.
Correction
Multidisciplinary Sciences
Ricardo Araujo, Romain David, Julien Benoit, Jacqueline K. Lungmus, Alexander Stoessel, Paul M. Barrett, Jessica A. Maisano, Eric Ekdale, Maeva Orliac, Zhe-Xi Luo, Agustin G. Martinelli, Eva A. Hoffman, Christian A. Sidor, Rui M. S. Martins, Fred Spoor, Kenneth D. Angielczyk
Article
Paleontology
Simon Wills, Charlie J. Underwood, Paul M. Barrett
Summary: By applying machine learning models and morphological comparisons, researchers have confidently assigned several isolated theropod teeth from Bathonian microvertebrate sites in the UK to Maniraptora. This discovery expands the temporal range of Therizinosauroidea and Troodontidae and suggests that diverse maniraptorans already existed in the Middle Jurassic, pre-dating the break-up of Pangaea. This study highlights the significance of machine learning in taxonomic identifications and emphasizes the importance of microvertebrate sites in faunal and evolutionary analyses.
PAPERS IN PALAEONTOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Jennifer Botha, Bailey M. Weiss, Kathleen Dollman, Paul M. Barrett, Roger B. J. Benson
Summary: Crocodilians evolved from early pseudosuchians with faster growth rates, but developed slow growth rates during the Late Triassic. This transition to slow growth occurred around the origin of Crocodylomorpha. The presence of different bone tissue types in fossil specimens supports this finding.
Meeting Abstract
Anatomy & Morphology
Simon Wills, Aaron J. Cavosie, Vincent Fernandez, Charlie J. Underwood, David J. Ward, Emma L. Bernard, Paul M. Barrett
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2023)
Meeting Abstract
Anatomy & Morphology
Andrew B. Heckert, Joel P. Crothers, Luke J. Rose, Sterling J. Nesbitt, Isaac Pugh, Michelle R. Stocker, Paul M. Barrett, Simon Wills, David Ward, Bruce Lauer, Rene Lauer
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2023)
Meeting Abstract
Anatomy & Morphology
Paul M. Barrett, Lara Sciscio, Michel Zondo, Timothy J. Broderick, Darlington Munyikwa, Pia A. Viglietti, Steve F. Edwards, Kimberley E. J. Chapelle, Kathleen N. Dollman, Jonah N. Choiniere
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2023)
Meeting Abstract
Anatomy & Morphology
Jonah N. Choiniere, Roger B. J. Benson, Kathleen Dollman, Kimberley E. J. Chapelle, Celina A. Suarez, Glenn R. Sharman, Emese M. Bordy, Jennifer Botha, Bailey M. Weiss, Paul M. Barrett
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2023)
Article
Evolutionary Biology
Thomas J. Raven, Paul M. Barrett, Chris B. Joyce, Susannah C. R. Maidment
Summary: The armoured dinosaurs, called Thyreophora, were an important part of the Mesozoic terrestrial ecosystems. Their fossils have been found on all continents, including Antarctica. However, due to a patchy fossil record and modified anatomy, the evolutionary history of these dinosaurs has been difficult to reconstruct. A recent study using a new phylogenetic dataset reveals a novel hypothesis for their relationships.
JOURNAL OF SYSTEMATIC PALAEONTOLOGY
(2023)
Article
Evolutionary Biology
Andrew J. Moore, Paul M. Barrett, Paul Upchurch, Chun-Chi Liao, Yong Ye, Baoqiao Hao, Xing Xu
Summary: This study re-describes and reevaluates the taxonomic status of the sauropod genus Mamenchisaurus, finding that it is not monophyletic and requiring further revision. It also identifies Mamenchisaurus sinocanadorum as a particularly long-necked sauropod with extensive vertebral pneumatization, and proposes that the elongated cervical ribs played a role in stabilizing the neck and promoting neck elongation by creating a predictable biomechanical environment for increased pneumatization.
JOURNAL OF SYSTEMATIC PALAEONTOLOGY
(2023)
Correction
Multidisciplinary Sciences
Ricardo Araujo, Romain David, Julien Benoit, Jacqueline K. Lungmus, Alexander Stoessel, Paul M. Barrett, Jessica A. Maisano, Eric Ekdale, Maeva Orliac, Zhe-Xi Luo, Agustin G. Martinelli, Eva A. Hoffman, Christian A. Sidor, Rui M. S. Martins, Fred Spoor, Kenneth D. Angielczyk
Article
Paleontology
Jennifer Botha, Jonah N. Choiniere, Paul M. Barrett
Summary: Lesothosaurus diagnosticus is a small dinosaur from the Early Jurassic period that lived in South Africa and Lesotho. By examining multiple limb elements, researchers found that Lesothosaurus grew rapidly during early and mid-ontogeny, with its growth rate decreasing between 2-4 years of age. The presence of multiple individuals of different ontogenetic stages in a bone bed suggests that Lesothosaurus exhibited social behavior.
