Article
Multidisciplinary Sciences
Chang-Fu Zhou, Dongxiang Yu, Ziheng Zhu, Brian Andres
Summary: This study provides histological evidence for the ontogeny of tapejarid pterosaurs in the Jehol Biota, showing their presence in various sizes and crest states, indicating the premaxillary crest as an ontogenetic feature. The study also found that the largest skeletally immature individuals might have reached sexual maturity, with a size gap between sexual and skeletal maturity.
SCIENTIFIC REPORTS
(2022)
Article
Zoology
Stephan N. F. Spiekman
Summary: Crocodylomorpha is the stem-lineage of modern crocodylians that survived the Triassic-Jurassic mass extinction event. Saltoposuchus connectens is one of the first described crocodylomorph species but its taxonomy has been contentious. In this study, additional specimens of Saltoposuchus are described in detail, its taxonomy is revised, and its relationship with other crocodylomorphs is investigated.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Evolutionary Biology
Rodrigo Temp Mueller, Mauricio Silva Garcia, Andre de Oliveira Fonseca
Summary: This study describes a new proterochampsid with a well-preserved hind limb, which contributes to the understanding of the hind limb anatomy of this group. The new taxon exhibits unique traits that provide insights into the evolutionary origins of certain muscle attachment structures. The specimen suggests that some archosaurian features evolved earlier than previously thought, shedding light on the evolutionary context of Archosauria.
JOURNAL OF SYSTEMATIC PALAEONTOLOGY
(2022)
Article
Limnology
Peter J. Edmunds
Summary: This study monitored the population dynamics of small corals in St. John over 22 years, finding that the smallest corals had the highest mortality rate and there were trends for the growth rate to vary with the number of hot days and rainfall. Through two decades of observation, it was observed that the linear correlation of growth rate with rainfall decreased in comparison to hot days, indicating a change in coral responsiveness to environmental conditions.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Geology
Tamara G. Navarro, Ignacio A. Cerda, Diego Pol
Summary: The clade Notosuchia was highly diverse during the Late Cretaceous in South America and has been extensively studied in terms of morphology and phylogenetic relationships. However, there is a lack of research on their paleobiology from a paleohistological perspective. This study used paleohistological analyses to infer different aspects of paleobiology in Notosuchus terrestris, including growth rate, strategies, variation, maturity, and age assessment. The results showed a unique growth strategy in N. terrestris, with periods of high growth interrupted by decreased or arrested growth. Sexual maturity was reached before caudal vertebrae fusion, and there was no clear correlation between body size and ontogenetic stage, possibly due to sexual dimorphism and/or developmental plasticity.
CRETACEOUS RESEARCH
(2023)
Article
Reproductive Biology
Vahid Ghaffarilaleh, Arash Javanmard, Adel Saberivand, Nader Asadzadeh, Reza Masoudi, Hoda Javaheri Barfourooshi, Amir Rashidi, Shahin Eghbalsaied
Summary: The study revealed that MOHA, BORE, and SANN goat breeds have larger litter sizes, with BUSH and BORE breeds having the highest frequency of supernumerary teats. There were no significant differences in histological features and gene expression profiles among different teat categories.
Article
Green & Sustainable Science & Technology
Leslie A. Roberson, Chris Wilcox
Summary: This study analyzes the variations in threatened species bycatch among individual operators in industrial fisheries. The results show that individual vessels are significant predictors of bycatch. There is a potential to reduce bycatch through interventions targeting specific performance groups of individuals.
NATURE SUSTAINABILITY
(2022)
Article
Geochemistry & Geophysics
Chengshi Gan, Xin Qian, Yuzhi Zhang, Tianxing Bai, Yuejun Wang
Summary: This study investigates the provenance, paleogeographic reconstruction and tectonic setting of the Cambrian sandstones in the South China Block (SCB) through detailed detrital zircon U-Pb geochronology and Hf isotope analyses. The results show that the Cambrian sandstones in the SCB can be divided into three groups, and they have similar detrital zircon age spectra, cumulative proportion curves and & epsilon;Hf(t) values. The study suggests that there was little provenance variation throughout the SCB during the Early Paleozoic, and the SCB was located between Australia and India during the Cambrian-Ordovician, receiving sediment detritus from both regions.
Article
Multidisciplinary Sciences
Lijun Zhu, Daniel C. Ralph
Summary: Spin-orbit torques acting on ferrimagnetic FexTb1-x layers decrease and vanish upon approaching the magnetic compensation point due to the competing spin relaxation processes. The relative rates of spin relaxation within magnetic layers play a critical role in determining the strength of SOTs, providing a unified understanding for diverse SOT phenomena. It is important to minimize spin-orbit scattering within the magnet for efficient SOT devices, and the interfacial spin-mixing conductance of ferrimagnetic alloys is large and insensitive to magnetic compensation.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Nicoletta Commins, Mark R. Sullivan, Kerry McGowen, Evan M. Koch, Eric J. Rubin, Maha Farhat
Summary: The molecular clock rate of Mycobacterium abscessus (Mab) slows down coincident with the emergence of phylogenetic clusters, challenging the model of person-to-person transmission and providing insights into transmission inference in emerging pathogens.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Multidisciplinary Sciences
Qianjin Liang, Liyu Chen, Xia Yang, Hui Yang, Shulin Liu, Kun Kou, Lei Fan, Zhifang Zhang, Zongbiao Duan, Yaqin Yuan, Shan Liang, Yucheng Liu, Xingtong Lu, Guoan Zhou, Min Zhang, Fanjiang Kong, Zhixi Tian
Summary: Shoot branching is critical for determining soybean yield. Through genome-wide association study, the authors identified a predominant association locus on chromosome 18 that determines soybean branch number in the natural population. They further characterized the corresponding gene Dt2 and discovered its interaction with two other genes, GmAgl22 and GmSoc1a, in regulating the transcription of genes that control soybean branching. The study also revealed significant geographic structure in the genetic differentiation of Dt2. This research provides an important gene for soybean branch number and may contribute to the breeding of high-yield soybean varieties.
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Yiguan Wang, Paul McNeil, Rashidatu Abdulazeez, Marta Pascual, Susan E. Johnston, Peter D. Keightley, Darren J. Obbard
Summary: Mutation, recombination, and transposition rates are important parameters in models of evolution, but little is known about their variation between individuals, sexes, or populations. This study provides direct estimates of these rates in different populations of Drosophila melanogaster and Drosophila simulans. The results show variation in mutation, recombination, and transposition rates among populations and sexes, with paternal-derived mutations being more frequent. These findings will benefit future studies in population and evolutionary genetics.
Article
Biology
Ella Katz, Jia-Jie Li, Benjamin Jaegle, Haim Ashkenazy, Shawn R. Abrahams, Clement Bagaza, Samuel Holden, Chris J. Pires, Ruthie Angelovici, Daniel J. Kliebenstein
Summary: This study measured the variation in specialized metabolites across a population of 797 natural Arabidopsis thaliana accessions and found that geography, environmental parameters, demography, and different genetic processes all influence specific chemotypes and their distribution. It revealed that causal loci in specialized metabolism contain frequent independently generated alleles, suggesting potential within-species convergence and providing a new perspective on the complexity of selective forces and mechanisms shaping allelic variation.
Article
Surgery
Joceline V. Vu, Kyle H. Sheetz, Ana C. De Roo, Tadd Hiatt, Samantha Hendren
Summary: A study found that there is substantial variation in the rate of colectomy for benign polyps in the United States, suggesting potential overuse of surgery for benign polyps in some regions.
SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES
(2021)
Article
Multidisciplinary Sciences
Zach Rolfs, Brian L. Frey, Xudong Shi, Yoshitaka Kawai, Lloyd M. Smith, Nathan Welham
Summary: The study provides a comprehensive resource of protein turnover in mouse tissues and develops a visualization platform for data analysis. Understanding protein turnover is critical for cellular physiology, tissue maintenance, and drug development. The dataset and visualization software will guide future studies on mammalian protein turnover in different physiological and pathological conditions.
NATURE COMMUNICATIONS
(2021)
Article
Anatomy & Morphology
Christopher T. Griffin, Sterling J. Nesbitt
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2020)
Article
Anatomy & Morphology
Sterling J. Nesbitt, Max C. Langer, Martin D. Ezcurra
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2020)
Article
Paleontology
Alexander Beyl, Sterling Nesbitt, Michelle R. Stocker
JOURNAL OF VERTEBRATE PALEONTOLOGY
(2020)
Article
Multidisciplinary Sciences
Christian F. Kammerer, Sterling J. Nesbitt, John J. Flynn, Lovasoa Ranivoharimanana, Andre R. Wyss
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Biology
Christopher T. Griffin, Michelle R. Stocker, Caitlin Colleary, Candice M. Stefanic, Emily J. Lessner, Mitchell Riegler, Kiersten Formoso, Krista Koeller, Sterling J. Nesbitt
Summary: Morphology plays a crucial role in vertebrate paleontology, providing the basis for taxonomic identification and evolutionary hypotheses. Assessing maturity is essential for studying ontogenetic changes, population structure, and paleoecology in saurian reptiles, but the methodological challenges and terminological ambiguity need to be addressed. Integrating data from extant and extinct taxa, as well as using multiple lines of evidence, is crucial for improving clarity and coherence in maturity assessment among saurian reptiles.
BIOLOGICAL REVIEWS
(2021)
Article
Multidisciplinary Sciences
Martin D. Ezcurra, Sterling J. Nesbitt, Mario Bronzati, Fabio Marco Dalla Vecchia, Federico L. Agnolin, Roger B. J. Benson, Federico Brisson Egli, Sergio F. Cabreira, Serjoscha W. Evers, Adriel R. Gentil, Randall B. Irmis, Agustin G. Martinelli, Fernando E. Novas, Lucio Roberto da Silva, Nathan D. Smith, Michelle R. Stocker, Alan H. Turner, Max C. Langer
Article
Anatomy & Morphology
Sterling J. Nesbitt, Michelle R. Stocker, Sankar Chatterjee, John R. Horner, Mark B. Goodwin
Summary: The radiation of archosauromorph reptiles in the Triassic Period resulted in a collection of diverse forms with varied ecologies and body sizes. The study describes the cranial anatomy of Triopticus primus and identifies a second dome-headed form, Kranosaura kuttyi, likely the sister taxon of Triopticus primus. The presence of 'dome-headed' archosauromorphs at two localities suggests their widespread distribution and potential involvement in more assemblages than currently recognized.
JOURNAL OF ANATOMY
(2021)
Article
Multidisciplinary Sciences
Caitlin Colleary, Hector M. Lamadrid, Shane S. O'Reilly, Andrei Dolocan, Sterling J. Nesbitt
Summary: Biomolecules preserved in fossils are expanding our understanding of ancient animal biology and evolution. Using mass spectrometry and analytical techniques, researchers have found that endogenous amino acids, amides, and lipids can be well preserved in fossil bones, with dense cortical bone providing better preservation of biomolecules.
SCIENTIFIC REPORTS
(2021)
Article
Anatomy & Morphology
Gabriel Mestriner, Aaron LeBlanc, Sterling J. Nesbitt, Julio C. A. Marsola, Randall B. Irmis, Atila Augusto Stock Da-Rosa, Ana Maria Ribeiro, Jorge Ferigolo, Max Langer
Summary: Histological data show that silesaurids do not have the permanent gomphosis seen in crocodylians and dinosaurs, but instead exhibit delayed ankylosis, with teeth being suspended in sockets by a periodontal ligament before eventually mineralizing and fusing to the jaws. This suggests a paedomorphic trend in tooth attachment evolution, with possible convergence in the dinosaur and crocodylian gomphosis. The relative duration of different phases of dental ontogeny needs to be carefully considered when analyzing dental characters in early archosaur phylogenies.
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2022)
Article
Paleontology
Jean-Sebastien Steyer, Brandon R. Peecook, Thomas Arbez, Sterling J. Nesbitt, Steve Tolan, Michelle R. Stocker, Roger M. H. Smith, Kenneth D. Angielczyk, Christian A. Sidor
Summary: Recent findings of Temnospondyl specimens from the Triassic of Tanzania and Zambia provide insights into the taxonomic and ecological diversity during that period, as well as the rapid recovery of these animal groups after the Permian-Triassic mass extinction. These discoveries contribute to a better understanding of the impact of this extinction event on the tetrapod faunas of southern Pangea.
Article
Anatomy & Morphology
William G. Parker, Sterling J. Nesbitt, Randall B. Irmis, Jeffrey W. Martz, Adam D. Marsh, Matthew A. Brown, Michelle R. Stocker, Sarah Werning
Summary: A study describes the early-diverging pseudosuchian Revueltosaurus callenderi from Arizona, based on 12 skeletons found in a bonebed, which possess unique features that help clarify its relationships within Pseudosuchia. Histological analysis of the femur indicates that the individuals were not young juveniles and had slow growth rate.
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2022)
Article
Biology
B. M. Wynd, J. C. Uyeda, S. J. Nesbitt
Summary: Allometry patterns are crucial for studying evolutionary constraints and ontogenetic growth in species. Fossil specimens may be distorted, affecting the accuracy of analyses. This study found that a generalized linear mixed model (GLMM) is more effective than traditional methods in reconstructing allometry with distorted specimens.
INTEGRATIVE ORGANISMAL BIOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Davide Foffa, Richard J. Butler, Sterling J. Nesbitt, Stig Walsh, Paul M. Barrett, Stephen L. Brusatte, Nicholas C. Fraser
EARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH
(2020)
Article
Multidisciplinary Sciences
Sterling J. Nesbitt, John M. Zawiskie, Robert M. Dawley
Article
Paleontology
Rodrigo T. Muller, M. Belen von Baczko, Julia B. Desojo, Sterling J. Nesbitt
ACTA PALAEONTOLOGICA POLONICA
(2020)