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Julien Kimmig

@jkimmig.bsky.social
254 followers 210 following 46 posts

I am a paleontologist posting pictures fossils, and information on my and related research

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Reposted by Julien Kimmig
Anthony (Tony) J. Martin @ichnologist.bsky.social · 29/09/2026
Job announcement: Assistant Teaching Professor (non-tenure but renewable) position for Applied Environmental Social Sciences in the Department of Environmental Sciences at @emorycollege.bsky.social, Atlanta GA. Let me know if you need more info or insights, glad to help. apply.interfolio.com/192159
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Julien Kimmig @jkimmig.bsky.social · 27/09/2026
Last day to apply
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Julien Kimmig @jkimmig.bsky.social · 25/09/2026
Last chance to apply for the postdoc in paleontology. www.smnk.de/museum/aussc... 2 years, funded through DFG project #paleontology #jobs #fossilfriday #palaeontology #museum #fossils
smnk.de
Paleontologist (Postdoc) (m/f/d)
Staatliches Museum für Naturkunde Karlsruhe
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Julien Kimmig @jkimmig.bsky.social · 18/09/2026
10 DAYS TO THE APPLICATION DEADLINE 2 year postdoc in paleontology www.museumsbund.de/stellenangeb... Please send your application with CV, list of publications, certificates and references to bewerbung@smnk.de by 27.09.2026, quoting reference number 16_2026.
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Reposted by Julien Kimmig
Julien Kimmig @jkimmig.bsky.social · 08/09/2026
We have a 2 year paleontology postdoc position as part of a DFG project www.smnk.de/museum/aussc...
smnk.de
Paleontologist (Postdoc) (m/f/d)
Staatliches Museum für Naturkunde Karlsruhe
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Julien Kimmig @jkimmig.bsky.social · 08/09/2026
We have a 2 year paleontology postdoc position as part of a DFG project www.smnk.de/museum/aussc...
smnk.de
Paleontologist (Postdoc) (m/f/d)
Staatliches Museum für Naturkunde Karlsruhe
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Reposted by Julien Kimmig
Palaeocast @palaeocast.bsky.social · 18/08/2026
Ep177: Cambrian Fecal Revolution www.palaeocast.com/cambrian-fec... The evolution of guts brings with it the evolution of faeces & as animal life radiated into the #Cambrian the poop began to pile up. In this episode, we learn of the effects this had on the planet. #paleo #palaeo #fossil #podcast
Phosphatized microscopic fecal pellets from the Gaotai Formation (Miaolingian, Wuliuan) Guizhou, China.
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Julien Kimmig @jkimmig.bsky.social · 17/08/2026
If you ever wanted to hear me talk about shit for an hour now is your chance 😅 www.palaeocast.com/cambrian-fec...
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Julien Kimmig @jkimmig.bsky.social · 08/08/2026
Right, but especially for soft tissues or feces
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Reposted by Julien Kimmig
Trends in Ecology & Evolution @cp-trendsecolevo.bsky.social · 05/08/2026
Online now: The Cambrian fecal revolution: Fueling the Cambrian Radiation
dlvr.it
The Cambrian fecal revolution: Fueling the Cambrian Radiation
Coprolites—fossil material extruded from an animal’s digestive system—represent a rare insight into trophic interactions in deep time. However, while the first animals appeared about 600 million years ago, the first coprolites are only observed in the earliest Cambrian. Conversely, in modern oceans, fecal pellets are an important part of the particulate organic carbon in the water column and the global flux of organic carbon to deep water. In this review, we analyze the impact of the advent of fecal matter on the Cambrian Radiation by examining coprolites, analyzing animal biology, and contextualizing this through the role of fecal pellets in the oceanic nutrient cycle. We illustrate the central position of coprolites in driving the Cambrian Radiation.
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Julien Kimmig @jkimmig.bsky.social · 04/08/2026
And here the conversation article accompanying our paper: ON THE ORIGIN OF FECES theconversation.com/on-the-origi...
theconversation.com
On the origin of feces: how animal poo drove Earth’s greatest evolutionary event
Is the evolution of excrement the reason we exist?
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Julien Kimmig @jkimmig.bsky.social · 04/08/2026
Need some luck and rapid preservation.
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Julien Kimmig @jkimmig.bsky.social · 04/08/2026
Have to use the limited space 😂
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Julien Kimmig @jkimmig.bsky.social · 04/08/2026
Thanks Roy!
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Julien Kimmig @jkimmig.bsky.social · 04/08/2026
Welcome to the CAMBRIAN FECAL REVOLUTION. We didn't name it the Cambrian fecal explosion for obvious reasons. I'm happy to share this paper on fecal matter and its role in Cambrian ecosystems. So if you want to read a really shitty paper (50 days free access): authors.elsevier.com/a/1nYg8cZ3X7...
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Julien Kimmig @jkimmig.bsky.social · 28/05/2026
Conversation article: theconversation.com/500-million-...
theconversation.com
500-million-year-old fossil helps fill a strange gap in our record of life on Earth
The fossil is a reminder of how incomplete our understanding of Earth’s history remains.
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Julien Kimmig @jkimmig.bsky.social · 28/05/2026
🦐 Research News‼️What does the fossil record of chelicerates in the Furongian look like? Research led by Russell Bicknell shows that it might be more diverse than we thought. Meet Magnicornaspis garwoodi the newest Cambrian critter. Article: rdcu.be/flerZ
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Reposted by Julien Kimmig
Prof Susie Maidment @tweetisaurus.bsky.social · 20/03/2026
JOB CLAXON: Imaging Assistant @nhm-london.bsky.social . Permanent role. Would be good for someone with CT experience! jobs.nhm.ac.uk/Job/JobDetai...
jobs.nhm.ac.uk
Imaging Assistant:South Kensington
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Julien Kimmig @jkimmig.bsky.social · 25/02/2026
Cambrian Radiation all the way
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Julien Kimmig @jkimmig.bsky.social · 05/01/2026
Happy to see our paper on the earliest Horseshoe Crab - Trace Fossil association published. Thanks to Russell Bicknell for leading the effort and everyone involved for their help. Elsevier: authors.elsevier.com/sd/article/S... Researchgate: www.researchgate.net/publication/...
authors.elsevier.com
ScienceDirect.com | Science, health and medical journals, full text articles and books.
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Reposted by Julien Kimmig
Phil Mannion @pdmannion.bsky.social · 08/12/2025
We'll be hosting a joint Crossing the Palaeontological–Ecological Gap (CPEG) meeting & Conservation Paleobiology Symposium @ucl.ac.uk in London in August 2027, which aims to bridge spatial and temporal gradients between palaeontology, ecology, and conservation: www.ucl.ac.uk/mathematical...
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Julien Kimmig @jkimmig.bsky.social · 26/11/2025
We have a 2 year position for a scientific assistant / collections apprenticeship at the Naturkundemuseum Karlsruhe. Completed masters and good German language skills needed. Please contact me if you have questions. This is not a research position. www.smnk.de/museum/aussc...
smnk.de
Wissenschaftliches Volontariat (m/w/d) Paläontologie
Staatliches Museum für Naturkunde Karlsruhe
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Julien Kimmig @jkimmig.bsky.social · 14/11/2025
New paper out. Update on the Sedimentary Geochemistry Project. Nice to see how this project is developing and how many people are involved: www.sciencedirect.com/science/arti... www.researchgate.net/publication/...
sciencedirect.com
The sedimentary geochemistry and paleoenvironments project phase 2 data release: An open data resource for the study of Earth's environmental history
Geochemical data from sedimentary rocks are the primary source of information regarding Earth's surface evolution through time, including its air and …
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Reposted by Julien Kimmig
Kenneth De Baets @djbirddanerd.bsky.social · 26/09/2025
Just in time for #FossilFriday 🦖 What are the big questions in #paleontology today? dx.doi.org/10.1017/pab.2025.10042 Nearly 200 scientists worldwide came together to map where our field is headed. Here’s the story 👇
dx.doi.org
Identifying the Big Questions in paleontology: a community-driven project | Paleobiology | Cambridge Core
Identifying the Big Questions in paleontology: a community-driven project
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Julien Kimmig @jkimmig.bsky.social · 26/09/2025
Happy to have contributed to this massive effort led by Jansen Smith. Thanks to all the colleagues that helped tackle this massive undertaking.
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Julien Kimmig @jkimmig.bsky.social · 18/09/2025
Researchgate: www.researchgate.net/publication/...
researchgate.net
(PDF) A problematic soft-bodied fossil from the Cambrian (Miaolingian, Wuliuan) of Utah
PDF | The Spence Shale of Utah and Idaho preserves a diverse soft-bodied biota from the Cambrian. While the fauna is dominated by arthropods and... | Find, read and cite all the research you need on R...
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Julien Kimmig @jkimmig.bsky.social · 18/09/2025
I'm happy to introduce the newest Cambrian critter 'Tentalus spencensis' from the Spence Shale of Utah. Publications out today in Geological Magazine (Open Access). Thanks to Karma Nanglu and Paul Jamison for their help with the paper. Link: www.cambridge.org/core/journal...
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Reposted by Julien Kimmig
Dr. Davey F. Wright ⛏️🦕🧬 @daveyfwright.bsky.social · 02/09/2025
I'm hoping to take 1 MSc & 1 PhD student next year in the areas of Phylogenetic, Computational, and/or Evolutionary Paleobiology. Please reach out if you are interested in joining the @oupaleobiology.bsky.social, especially if interested in working on fossil echinoderms. Link for more info below. 🧪
daveyfwright.wordpress.com
News
PhD and MSc positions in Phylogenetic, Computational, and/or Evolutionary Paleobiology [Posted September 2025. Deadline is January 15, 2026. See below for information about the lab, student opportu…
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Julien Kimmig @jkimmig.bsky.social · 12/08/2025
Researchgate: www.researchgate.net/publication/...
researchgate.net
(PDF) Mazon Creek bromalites evidence a specialized, xiphosurid-rich diet for Pennsylvanian predators
PDF | The Mazon Creek Konservat-Lagerstätte is a globally significant Pennsylvanian (late Carboniferous) fossil assemblage characterized by exceptional... | Find, read and cite all the research you ne...
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Julien Kimmig @jkimmig.bsky.social · 12/08/2025
Our paper on som xiphosurid-rich bromalites from Mazon Creek has been published in Palaios. Thanks to Russell Bicknell for leading the paper and to Andrew Young, Bruce Lauer, René Lauer, and Victoria E. McCoy for all the work that went into this. Palaios: pubs.geoscienceworld.org/sepm/palaios...
pubs.geoscienceworld.org
MAZON CREEK BROMALITES EVIDENCE A SPECIALIZED, XIPHOSURID-RICH DIET FOR PENNSYLVANIAN PREDATORS | PALAIOS | GeoScienceWorld
Abstract. The Mazon Creek Konservat-Lagerstätte is a globally significant Pennsylvanian (late Carboniferous) fossil assemblage characterized by
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Julien Kimmig @jkimmig.bsky.social · 11/08/2025
Close-up
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Julien Kimmig @jkimmig.bsky.social · 11/08/2025
Hi, does anyone have an idea what museum might have had labels like the one on this specimen. We're trying to return a bunch of old loans, and this specimen has no information. It's a receptaculite, maybe that helps.
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Reposted by Julien Kimmig
Adiel Klompmaker @paleoadiel.bsky.social · 08/08/2025
Job Alert‼️ Postdoctoral Fellow opportunity in paleontology/biology at the University of Alabama Museums: careers.ua.edu/jobs/688232b... Aim: assess biotic interactions using mollusks from both sides of the Isthmus of Panama. Please share widely! @paleosoc.bsky.social @almnh.bsky.social
Postdoctoral Fellow opportunity. The NSF-funded project “Energetic Controls on Marine Benthic Community Structure in Space and Time”  aims to (1) evaluate how productivity affects the energetic and trophic structure of marine benthic communities on either side of the modern Isthmus of Panama, where there is now a strong contrast between the high productivity, upwelling-dominated regime of the eastern Pacific and the low-productivity, low-seasonality regime of the Caribbean (2) use this knowledge to evaluate the fossil record of Caribbean benthic ecosystems before, during, and after the uplift of the isthmus during which planktonic productivity decreased in the Caribbean and (3) relate ecosystem changes driven by productivity shifts to the well documented Caribbean extinction event ~2 Ma. This is a project in collaboration with Ohio State U, UC Berkeley, and STRI.
One key component of this project is to assess biotic interactions such as predation and possibly parasitism using fossil and modern molluscan assemblages from both sides of the Isthmus of Panama. I am recruiting a Postdoctoral Fellow with a background in paleontology and/or biology/ecology with strong quantitative skills, attention to detail and organization, and someone who can effectively supervise students. Conference support is provided. The postdoc will work with Dr. Adiel Klompmaker (aaklompmaker@ua.edu) within the University of Alabama Museums’ Department of Museum Research and Collections (https://collections.museums.ua.edu/). 
Initial appointment will be for 1 year, with renewal contingent upon funding. The deadline to apply is 5 September 2025 at 22:55 US Central Day Time. The salary will be $56,000 per year. Please upload a cover letter expressing your interest and qualifications, a CV, and contact details of at least two references. To apply and for more information see: https://careers.ua.edu/jobs/688232bd-b82e-49d3-90ea-06601c242dab
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Julien Kimmig @jkimmig.bsky.social · 15/05/2025
Thanks 😄
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Julien Kimmig @jkimmig.bsky.social · 14/05/2025
Thanks to Roy Plotnick for taking the lead, and Brendan Anderson, Sandy Carlson, Advait Jukar, and Elizabeth Petsios for all the work that went into this.
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Julien Kimmig @jkimmig.bsky.social · 14/05/2025
Our paper on 'Employment in paleontology: status and trends in the United States' has been published in Paleobiology. We wrote it last year, so it's not considering the current cuts. Open Access: www.cambridge.org/core/journal...
cambridge.org
Employment in paleontology: status and trends in the United States | Paleobiology | Cambridge Core
Employment in paleontology: status and trends in the United States
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Julien Kimmig @jkimmig.bsky.social · 05/05/2025
New paper out today: Fragmentary snout of a marine crocodile from the Upper Palatinate, Bavaria www.researchgate.net/publication/...
researchgate.net
(PDF) Kleine Schnauze, viel dahinter: Fragment eines Meereskrokodils aus der Oberpfalz / Fragmentary snout of a marine crocodile from the Upper Palatinate, Bavaria
PDF | A snout fragment is described as the first tetrapod from the Kimmeridgian «Plattendolomit» (finely layered dolomite, Pottenstein Formation) near... | Find, read and cite all the research you nee...
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Reposted by Julien Kimmig
Mark Witton @markwitton.bsky.social · 30/04/2025
New paper: The past, present and future of Megalosaurus bucklandii in paleoart. I review the #paleoart history of this oft-depicted #dinosaur, consider its fluctuating status as a subject of artistic interest, and review what we know of its anatomy. #sciart meridian.allenpress.com/esh/article-...
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Julien Kimmig @jkimmig.bsky.social · 30/04/2025
New paper out today, we looked at new Caryosyntrips appendages and discuss Caryosyntrips taxonomy and ecology Paper here: www.sciencedirect.com/science/arti... 50 free copies here: kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
sciencedirect.com
Novel information on Caryosyntrips based on new appendages from China and the USA
Caryosyntrips is a relatively rare but long-lived and geographically widespread radiodont genus with specimens reported from Cambrian Stage 4 to the D…
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Julien Kimmig @jkimmig.bsky.social · 13/04/2025
We actually wrote a paper on that last year www.sciencedirect.com/science/arti... happy to send it if you don't have access
sciencedirect.com
A modern definition of Fossil-Lagerstätten
Fossil-Lagerstätten are amongst the most important windows onto the paleobiology of ancient ecosystems. Inconsistencies surrounding what constitutes a…
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
A similar session will also be offered at GSA in San Antonio if you can't make it to Göttingen. Cheers, Julien Kimmig & Jannik Weidtke
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
Please do not hesitate to contact us in case of any questions. Please forward the invitation to other colleagues and your students that might be interested. Looking forward to seeing many of you in Göttingen!
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
Abstract submission is already open – deadline is 6 May. www.geo4goettingen2025.de/call-for-abs... More information is available and will be further updated here: www.geo4goettingen2025.de/index.html For further information on all sessions see here: www.geo4goettingen2025.de/assets/sessi...
geo4goettingen2025.de
Call for abstracts
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
We are therefore especially motivated to have researchers from different backgrounds from across all aspects of paleobiology present during this session, such that an integrated examination of the imaging frontier of paleobiology can be explored.
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
This is especially important as researchers from different parts of paleobiology seldom find themselves in the same sessions.
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
This will present an important opportunity to bring this distinguished group of thinkers together, and allow researchers across these fields to interact, developing connections that would likely not otherwise be possible.
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
This session aims to span topics in vertebrate, invertebrate, botanical, and trace fossil research and examine how imaging methods can be used to understand these sub-fields, producing a unique, cross-disciplinary environment.
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
This is especially pertinent as there has been exceptional development in how we consider and explore fossils in 2D and 3D over the last 10 years and the number of researchers and methods tackling this topic has increased significantly.
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
This session will bring together an array of scientists who are tackling the application of imaging fossils with modern techniques. Methods covered include elemental imaging, synchrotron data, CT data and other imaging techniques.
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Julien Kimmig @jkimmig.bsky.social · 10/04/2025
Hi all, if you are planing to go to the Geo4Göttingen Meeting we are offering a session on Fossil Imaging (A similar one should also be offered at GSA if you can't make it to Germany): We are pleased to announce a thematic session on Recent Advances in Fossil Imaging (session 06.02, ID 143).
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