New Publication
Seamlessly integrate #stratigraphy, #taphonomy, #ecology and evolutionary biology to build your modeling pipelines for stratigraphic #paleobiology
Published in Methods in Ecology and Evolution , R package available on CRAN
@Emiliagnathus
https://besjournals.onlinelibrary.wiley.com/doi/10.1111/2041-210X.14507
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Stage (stratigraphy) (Geology terminology 
)
In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries. Rock series are divided...
en.wikipedia.orgStage (stratigraphy) - Wikipedia
there are still 6 days left to apply to join my group at Senckenberg Museum Frankfurt as a PhD Student in #Paleobiology! Are you interested in how the rock record shapes our undersanding of macroevolutionary dynamics of #plants in the #Mesozoic?
https://www.senckenberg.de/en/career/scientists/#content-0002_2
Senckenberg Society for Nature ResearchJobs for Scientists | Senckenberg Society for Nature Research
sicb & #SICB2025
Don’t miss out on the SICB journals booth for ICB and (@)iobjournal with Jason Macrander and his students running the booth.
We’ll have an art show on the 7th with (@)kevin.d.kohl , and an author time on the 5th with (@)miss_elasmo ‘s Jasmin Graham as well as @amphibianfoundation ‘s joining us on the 4th and 5th.
Also. E sure to get some great journal swag and talk to our booth hosts about #submission.
Chronozone (Geology terminology )
A chronozone or chron is a unit in chronostratigraphy, defined by events such as geomagnetic reversals, or based on the presence of specific fossils. According to the International Commission on Stratigraphy, the term "chronozone" refers to the rocks formed during a particular time period, while "chron" refers to that time period. ...
en.wikipedia.orgChronozone - Wikipedia
Just in time for
#FossilFriday: Fossil constraints on the origin and evolution of #Platyhelminthes are surprisingly concordant with modern molecular #phylogenies:
https://doi.org/10.1590/S1984-4689.v41.e24002
#flatworms
#paleobiology
#paleontology
#fossils
#paleoparasitology
#helminths
#flatworms
Mammalian Ancestors Shed Light on The Great Dying - As we move through the Sixth Extinction, it can be beneficial to examine what caus... - https://hackaday.com/2024/11/22/mammalian-ancestors-shed-light-on-the-great-dying/ #paleoclimatology #extinctionevent #carbondioxide #climatechange #paleobiology #paleontology #volcanology #science #climate #volcano #pangea #co2
Hackaday · Mammalian Ancestors Shed Light On The Great DyingAs we move through the Sixth Extinction, it can be beneficial to examine what caused massive die-offs in the past. Lystrosaurus specimens from South Africa have been found that may help clarify wha…
Calibrations without raw data—A response to “Seasonal calibration of the end-cretaceous Chicxulub impact event”: https://peerj.com/articles/18519/ via
@PeerJ #paleobiology #Paleontology
PeerJCalibrations without raw data—A response to “Seasonal calibration of the end-cretaceous Chicxulub impact event”A recent article by DePalma et al. reported that the season of the End-Cretaceous mass extinction was confined to spring/summer on the basis of stable isotope analyses and supplementary observations. An independent study that was concurrently under review reached a similar conclusion using osteohistology and stable isotope analyses. We identified anomalies surrounding the stable isotope analyses reported by DePalma et al. Primary data are not provided, the laboratory where the analyses were performed is not identified, and the methods are insufficiently specified to enable accurate replication. Furthermore, isotopic graphs for carbon and oxygen contain irregularities such as missing data points, duplicate data points, and identical-length error bars for both elements despite different scales, that appear inconsistent with laboratory instrument outputs. A close examination of such methodological omissions and data irregularities can help to raise the standards for future studies of seasonality and prevent inaccurate claims or confirmation bias.
Do you want to know how the structure of the rock record affects your reconstructions of #biodiversity, #evolution rates or trait evolution? The groundwork for doing this has been laid down in the field of #StratigraphicPaleobiology but until now no software tools have been available to researchers in #paleobiology and #geoscience to evaluate distortion of their #FossilRecord.
Join the webinar on Building modeling pipelines for stratigraphic paleobiology in #RSoftware by my PhD student @Niklas_Hohmann in the Paleoverse lecture series hhttps://palaeoverse.org/lectures this Thursday at 4 PM UTC to learn how to use the new package StratPal developed in my European Research Council (ERC) project #MindTheGap
You can find the package with extensive documentation here: https://mindthegap-erc.github.io/StratPal/
More on the project: https://mindthegap-erc.github.io/
If you are interested in working with us on #StratigraphicPaleobiology, structure of the fossil record, and development of #OpenSource research software, please get in touch!
mindthegap-erc.github.ioStratigraphic Paleobiology Modeling PipelinesThe fossil record is a joint expression of ecological, taphonomic, evolutionary, and stratigraphic processes (Holland and Patzkowsky, 2012, ISBN:978-0226649382). This package allowing to simulate biological processes in the time domain (e.g., trait evolution, fossil abundance), and examine how their expression in the rock record (stratigraphic domain) is influenced based on age-depth models, ecological niche models, and taphonomic effects. Functions simulating common processes used in modeling trait evolution or event type data such as first/last occurrences are provided and can be used standalone or as part of a pipeline. The package comes with example data sets and tutorials in several vignettes, which can be used as a template to set up one's own simulation.
Corroborating written history with ancient DNA: The case of the Well-man described in an Old Norse saga
"Here we apply palaeogenomic analysis to human remains excavated from a medieval well at the ruins of Sverresborg Castle in central Norway. In Sverris Saga, the Old Norse saga of King Sverre Sigurdsson, one passage details a 1197-CE raid on the castle and mentions a dead man thrown into the well. Radiocarbon dating supports that these are that individual’s remains."
Ellegaard, M.R. et al. (2024) 'Corroborating written history with ancient DNA: The case of the Well-man described in an Old Norse saga,' iScience, p. 111076. https://doi.org/10.1016/j.isci.2024.111076.
#OpenAccess #OA #Research #Article #Science #Genetics #Ancient #DNA #Paleobiology #Paleogenetics #Archaeology #Archaeodons #Anthropology #Norse #Norway #History #Europe #Academia #Academics @science @anthropology @archaeodons
doi.orgCorroborating written history with ancient DNA: The case of the Well-man described in an Old Norse sagaThe potential of ancient DNA analyses to provide independent sources of information about events in the historical record remains to be demonstrated. …
Have you connected with us on @LinkedIn ?
Be sure to catch this Monday IOB must read on #paleobiology
https://doi.org/10.1093/iob/obae034
Volumetric versus Element-scaling Mass Estimation and Its Application to Permo-Triassic #Tetrapods
M A Wright,Cavanaugh, Pierce
Discriminating conodont recording bias: a case study from the Nanzhang-Yuan’an Lagerstätte: https://peerj.com/articles/18011/ via
@PeerJ #paleobiology #paleontology #FossilFriday #Fossils
PeerJDiscriminating conodont recording bias: a case study from the Nanzhang-Yuan’an LagerstätteThe Early Triassic Nanzhang-Yuan’an Lagerstätte of Hubei Province, South China, preserves abundant marine reptiles in the uppermost part of the Jialingjiang Formation and provides detailed insights into marine organisms, including newly discovered and well preserved conodont clusters of the Family Ellisonidae. These conodont elements allow us to assess the bias introduced during the acquisition process. We examined conodont elements preserved on the bedding planes and those acquired after the acid-dissolving method to analyze their attributes and length distributions. We identified a biased preservation of different conodont elements related to their morphologies. After the acid-dissolving procedures, the bias increased, and all different elements were affected, with larger individuals being particularly prone to destruction. Among them, the P elements of Ellisonidae were the least affected, while the S elements were the most affected. This study further indicates that paleobiological interpretations based on fossil size or morphology could be obscured if the influence of post-mortem effect is ignored.
Chronozone (Paleogeography 
)
A chronozone or chron is a unit in chronostratigraphy, defined by events such as geomagnetic reversals, or based on the presence of specific fossils. According to the International Commission on Stratigraphy, the term "chronozone" refers to the rocks formed during a particular time period, while "chron" refers to that time period. Altho...
en.wikipedia.orgChronozone - Wikipedia
Are you teaching #stratigraphy / #paleobiology ? Our workshop materials on building modeling pipelines for stratigraphic paleobiology is now openly available as #OER , incl. coding cheat sheets and solutions. 
go use it
@Emiliagnathus
https://github.com/MindTheGap-ERC/StratPal_workshop_materials
GitHubGitHub - MindTheGap-ERC/StratPal_workshop_materials: Workshop materials for modeling pipelines in stratigraphic paleobiology using the StratPal packageWorkshop materials for modeling pipelines in stratigraphic paleobiology using the StratPal package - MindTheGap-ERC/StratPal_workshop_materials
New #research #software is now available for download at CRAN
Check it out if you want to combine ecology, #taphonomy, #stratigrapgy, and #evolutionarybiology to build your own modeling pipelines for stratigraphic #paleobiology
Very proud of this small package, which will form the basis of our upcoming workshop in Warsaw
@Emiliagnathus @djbirddanerd
mindthegap-erc.github.ioStratigraphic Paleobiology Modeling PipelinesThe fossil record is a joint expression of ecological, taphonomic, evolutionary, and stratigraphic processes (Holland and Patzkowsky, 2012, ISBN:978-0226649382). This package allowing to simulate biological processes in the time domain (e.g., trait evolution, fossil abundance), and examine how their expression in the rock record (stratigraphic domain) is influenced based on age-depth models, ecological niche models, and taphonomic effects. Functions simulating common processes used in modeling trait evolution or event type data such as first/last occurrences are provided and can be used standalone or as part of a pipeline. The package comes with example data sets and tutorials in several vignettes, which can be used as a template to set up one's own simulation.
Continued thread
A sorta exclusive for #TetZooCon 2024... we have Dave the Hone talking about his brand-new book DINOSAUR BEHAVIOUR, and - hopefully - we'll have copies present at the meeting ahead of the actual publication date. Woohoo! It features art by @serpenillus (who, sadly, isn't able to attend....) #dinosaurs #palaeobiology #paleobiology
Modelling take-off moment arms in an ornithocheiraean pterosaur: https://peerj.com/articles/17678/ via @PeerJ
#paleobiology #paleontology #modelling #flying #Evolution
Replied in thread
“Organ systems of a Cambrian euarthropod larva”, Smith et al. 2024
https://www.nature.com/articles/s41586-024-07756-8
“we describe the internal and external anatomy of a three-dimensionally preserved euarthropod larva with lobopods, midgut glands and a sophisticated head. The architecture of the nervous system informs the early configuration of the euarthropod brain and its associated appendages and sensory organs, clarifying homologies across Panarthropoda.”
Many people think the history of the Earth is hard to decipher. The geological record jumbles everything up. We set out to fact-check this in my ERC Starting Grant MindTheGap. Focusing on the mode of evolution, because that is something that we can only glean from long records, longer than anything accessible to observation or experimentation today.
Thanks to collaboration with Peter Burgess we used forward models to simulate formation of carbonate rocks and see how completeness and stratigraphic resolution affect the reconstructions. Guess what! The geological record is 
With a bit of understanding of #sedimentology and #physics we can test is with computer experiments and it turns out even very patchy rock strata will let us reconstruct the correct mode of evolution. This opens a lot of possibilities, especially for the #microfossil community: your data is priceless to understand #microevolution.
Check out the results at https://lnkd.in/eeiSuRwP
Also a big shoutout to an excellent review process at PCI Paleo, the thoughtful editors and reviewers, and to the lead author Niklas Hohmann for #code #reproducibility effort that meets the most stringent standards. Check out our software at https://lnkd.in/eJkwhhuh
