Discover, rate, and discuss biology preprints.
363,000+ bioRxiv and medRxiv preprints, including those later published in peer-reviewed journals, across 26 biological disciplines.
Recent preprints
- PaleontologybioRxivPreprint
Diverse genetic origins of medieval steppe nomad conquerors
A. Mikheyev, L. Qiu, A. Zarubin…·T. V. Tatarinova
The paper analyzes whole-genome sequences of Khazar elites to show their polyethnic origins and genetic admixture from conquered populations, with no persistent genetic traces in Europe.
DOI 10.1101/2019.12.15.876912 - PaleontologybioRxiv
The influence of environmental setting on the community ecology of Ediacaran organisms
E. G. Mitchell, N. Bobkov, N. Bykova…·D. V. Grazhdankin
This study investigates how environmental settings influenced the community ecology of Ediacaran organisms using spatial point process analyses of seven bedding-plane assemblages.
DOI 10.1098/rsfs.2019.0109 - PaleontologybioRxiv
Effectiveness of micromorphy against drilling predation: Insights from early Miocene faunal assemblage of Quilon limestone, India
D. Chattopadhyay, K. S. Venu gopal, D. Chattopadhyay
This study examines drilling predation on micromolluscs in a Miocene fossil assemblage, finding size-dependent predation patterns and support for micromorphy as a defense mechanism.
DOI 10.1016/j.palaeo.2020.109742 - PaleontologybioRxiv
Transitional evolutionary forms and stratigraphic trends in chasmosaurine ceratopsid dinosaurs : evidence from the Campanian of New Mexico
D. W. Fowler, E. A. Freedman Fowler
The paper describes transitional chasmosaurine dinosaur fossils from New Mexico that show morphological changes between Pentaceratops and Anchiceratops, supporting anagenesis and challenging previous phylogenetic classifications.
- PaleontologybioRxiv
Classification of down-core foraminifera image sets using convolutional neural networks.
R. Marchant, M. Tetard, A. Pratiwi, T. de Garidel-Thoron
The paper develops a convolutional neural network to classify down-core foraminifera images, achieving 90% accuracy and matching manual counting results for Holocene benthic species.
DOI 10.5194/jm-39-183-2020 - PaleontologybioRxiv
What do ossification sequences tell us about the origin of extant amphibians?
M. Laurin, O. Lapauze, D. Marjanovic
This study uses ossification sequence data to evaluate six hypotheses about the origin of extant amphibians, finding strong support for a monophyletic origin among lepospondyls and unexpected triphyly in appendicular data.
DOI 10.24072/pcjournal.89 - PaleontologybioRxiv
Reptile-like physiology in Early Jurassic stem-mammals
E. Newham, P. G. Gill, P. Brewer…·I. J. Corfe
The paper uses synchrotron X-ray imaging to show Early Jurassic stem-mammals had lifespans and femoral blood flow rates similar to reptiles, indicating reptile-like physiology rather than endothermic metabolism.
DOI 10.1038/s41467-020-18898-4 - PaleontologybioRxivPreprint
Evolution of crab eye structures and the utility of ommatidia morphology in resolving phylogeny
J. Luque, W. T. Allison, H. D. Bracken-Grissom…·J. M. Wolfe
This study investigates the phylogenetic utility of compound eye structures in crabs, finding that eye type distribution supports a paraphyletic podotreme grade and highlights the evolution of visual systems.
DOI 10.1101/786087 - PaleontologybioRxiv
Modeling Dragons: Using linked mechanistic physiological and microclimate models to explore environmental, physiological, and morphological constraints on the early evolution of dinosaurs
D. M. Lovelace, S. A. Hartman, P. D. Mathewson…·W. P. Porter
This study uses biophysiological models to explore metabolic rates and thermal constraints in early dinosaurs under Triassic climate conditions.
DOI 10.1371/journal.pone.0223872 - PaleontologybioRxiv
The fast and the frugal: Divergent locomotory strategies drive limb lengthening in theropod dinosaurs
T. A. Dececchi, A. Mloszewska, H. Larsson…·M. B. Habib
This study examines how limb lengthening in theropod dinosaurs relates to locomotory strategies, finding two distinct approaches based on body size for maximizing speed or energetic efficiency.
DOI 10.1371/journal.pone.0223698 - PaleontologybioRxivPreprint
Hydraulic diversity of El Cien Formation (Baja California Sur, Mexico) and the consequences of functional diversity in paleoclimate estimation using fossil wood
H. I. Martinez-Cabrera, E. Estrada-Ruiz
The paper examines how environmental filtering and limiting similarity affect functional diversity in wood anatomical traits across different climates and applies this to fossil wood paleoclimate estimation.
DOI 10.1101/768283 - PaleontologybioRxivPreprint
Dispersal ability predicts evolutionary success among mammalian carnivores
S. Faurby, L. Werdelin, A. Antonelli
This study shows that dispersal ability is positively linked to diversification rates in mammalian carnivores when including extinct species.
DOI 10.1101/755207 - PaleontologybioRxiv
Defining variation in pre-human ecosystems can guide conservation: An example from a Caribbean coral reef
A. O'Dea, M. Lepore, A. Altieri…·E. Dillon
This study defines historical variation in Caribbean coral reefs using fossil records to show that most modern reefs are in novel states, while one reef has remained stable for over 760 years.
DOI 10.1038/s41598-020-59436-y - PaleontologyJournal of Vertebrate PaleontologyPeer-reviewed
Cranial anatomy of the predatory actinopterygian Brazilichthys macrognathus from the Permian (Cisuralian) Pedra de Fogo Formation, Parnaiba Basin, Brazil
R. T. Figueroa, M. Friedman, V. Gallo
This paper describes the cranial anatomy of Brazilichthys macrognathus using μ-CT, reinterprets its anatomy, and places it as a stem actinopterygian.
DOI 10.1080/02724634.2019.1639722 - PaleontologybioRxiv
Early Tetrapodomorph Biogeography: Controlling for Fossil Record Bias in Macroevolutionary Analyses
J. D. Gardner, K. Surya, C. L. Organ
The paper develops a geographic sampling bias proxy to test for biases in macroevolutionary analyses using early tetrapodomorph biogeography as a case study.
DOI 10.1016/j.crpv.2019.10.008 - PaleontologybioRxiv
Crocodylomorph cranial shape evolution and its relationship with body size and ecology
This study investigates cranial shape evolution in crocodylomorphs, finding strong links between shape, body size, and ecology, with higher disparity in terrestrial taxa and shifts in longirostrine regimes in aquatic species.
DOI 10.1111/jeb.13540 - PaleontologybioRxiv
Fossil amber reveals springtails’ longstanding dispersal by social insects
N. Robin, C. D'Haese, P. Barden
The paper documents a 16 Ma fossil showing 25 springtails attached to a termite and ant, suggesting dispersal via social insects and highlighting phoresy as a mechanism for Symphypleona.
- PaleontologyAmerican Journal of Physical AnthropologyPeer-reviewed
Root caries on a Paranthropus robustus third molar from Drimolen
I. Towle, A. Riga, J. D. Irish…·J. Moggi-Cecchi
The paper describes a root caries lesion on a Paranthropus robustus third molar, suggesting root caries in fossil hominins and potential factors like age and microbiome changes.
DOI 10.1002/ajpa.23891 - PaleontologybioRxiv
Automated Microfossil Identification and Segmentation Using a Deep Learning Approach
L. E. Ramos de Carvalho, G. Fauth, S. Baecker Fauth…·A. von Wangenheim
This paper develops a deep learning method for automated microfossil identification and segmentation, achieving 98% Intersection Over Union accuracy and introduces a publicly available annotated dataset.
DOI 10.1016/j.marmicro.2020.101890