@openpalaeo
Open Palaentology (or OPal) is a Diamond Open Access palaeontology journal with a mission to provide a flexible platform for quality palaeontological research that is free and accessible to authors and readers everywhere. Read more at www.openpalaeo.org
Supplementary material: www.openpalaeo.org/article/view...
Supplementary data 1: www.openpalaeo.org/article/view...
Supplementary data 2: www.openpalaeo.org/article/view...
Review History: www.openpalaeo.org/article/view...
Figure from the article: The maximum clade credibility tree recovered by the time-calibrated Bayesian analysis.
The study looks at early cartilaginous fish evolution using Bayesian tip dating methods. It finds that total-group chondrichthyans evolved in the Middle Ordovician and that major acanthodian clades diverged from the stem in quick succession, making this early radiation difficult to resolve
New Research Article published in OPal 🔬
Tip dating supports a Middle Ordovician origin for total-group chondrichthyans and a rapid radiation of acanthodian-grade taxa
By Lorenzo Emanuele Morra
www.openpalaeo.org/article/view...
Review history: www.openpalaeo.org/article/view...
Figure from the article: A fossilized stylophoran theca (Ceratocystis perneri) showing the location of sutural pores.
In this paper, the authors specifically look at how stylophoran respiratory structures evolved and determined that the most basal structures did not originate from the same structures that gave rise to gills and oral orifices in other deuterostomes.
Stylophorans are an extinct class of Paleozoic echinoderms with complex morphology. In general, they lack the radial symmetry typical of other echinoderms. Given their occurrence in the Cambrian, this group is often studied to understand the basic nature and origination of the metazoan body plan.
New Research Article published in OPal 🔬
Respiratory structures in cornute stylophorans (Echinodermata)
By Christophe Dupichaud, Bertrand Lefebvre, Ninon Allaire, Enzo Birolini, Malo Meyruey, and Martina Nohejlová
www.openpalaeo.org/article/view...
Supplementary data: www.openpalaeo.org/article/view...
Review history: www.openpalaeo.org/article/view...
Cover image from the article showing atmospheric pCO2 (above) and conodont delta Carbon isotopes (below) during the Late Devonian to Mississippian
The study explores a new way to estimate ancient atmospheric CO₂ levels using chemical signals preserved in conodonts. It shows that differences in carbon isotopes between these fossils and surrounding rocks track major climate shifts during a key period as Earth moved from a warm to an icy climate
New Hypothetical published in OPal💡
Reconstruction of CO2 levels in the Late Devonian - Mississippian on the basis of decoupling of C-isotope composition of conodont elements and host carbonates
By Andrey Zhuravleva www.openpalaeo.org/article/view...
What will you gain? A great addition to your academic or publishing CVs, key journal management/editing skills, and a co-team of ~20 like-minded scientists at varying career-stages.
Please consider joining us - and please help us distributing our adverts by sharing!
Open Palaeontology is a community-run, diamond open-access journal trying to reshape non-profit academic publishing in palaeontology. You can help shape our journal's direction and make a difference for accessible palaeontology. The open positions are suitable for early-career researchers.
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Photography from the posted article of a radiodont frontal appendage of Hurdia sp. from the Burgess Shale, USNM 213880
The authors use decay experiments with shrimp to show that arthropod setae do not exhibit signs of degradation, even after separation from the body. They suggest that fossil setae may be valid taxonomic indicators and that differences in setal numbers can be used to distinguish radiodont taxa.
Decay experiments on shrimps provide insight into the fossilization potential of arthropod appendages
Nora Corthésy, Gaëtan J.-M. Potin, et al.
www.openpalaeo.org/article/view...
Hi David,
You can consider submitting to OPal if you want alternative publishing formats, preprinting, or open peer reviews.
Our formats are designed to present research at all steps of the scientific process.
We also welcome negative results or videos.
See www.openpalaeo.org/publication-...
Want to get involved in our brand new journal? See our different teams and how to join them on our website www.openpalaeo.org/join-the-team
We aim to achieve flexibility in publishing by adopting a versatile step-wise approach with our different formats “Hypotheticals”, “Research Protocols”, and “Research Articles”.
Publishing is supported by the Shared Open Access Publishing Platform (SOAP2), which ensures indexing and archiving.
Hello 👋We are Open Palaeontology, or OPal, a brand new Diamond Open Access journal for palaeontology research.
Our mission is to provide a flexible platform for research that is free to authors and readers.
Read more in our editorial www.openpalaeo.org/article/view... or at www.openpalaeo.org!