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Benjamin Raynaud

@benjaminraynaud.bsky.social

PhD student in paleontology at @cr2p.bsky.social Paleobotany and paleomammalogy. Paleogene pollen. Vulgarisation. Rugby.

173 Followers  |  284 Following  |  7 Posts  |  Joined: 04.12.2024
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Posts by Benjamin Raynaud (@benjaminraynaud.bsky.social)

Finally, climatic reconstruction methods (Coexistence Approach and CREST) indicate a warm-temperate climate with hot summers.
This support the idea that faunal endemism in Balkanatolia was rather driven by insular isolation, rather than climatic or environmental barriers.
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04.02.2026 07:38 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Notably, we document the first occurrence of Corsinipollenites (Onagraceae pollen) and Azolla ferns from the Lutetian of TΓΌrkiye.
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04.02.2026 07:37 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

This is one of the first inland-deposited palynofloras from the Eocene of TΓΌrkiye. It is dominated by swamp-freshwater taxa, including Cupressaceae, Ludwigia (Onagraceae), and ferns.
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04.02.2026 07:37 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Redirecting

The first article from my PhD has just been published in JAES: "Lutetian swamp-freshwater palynoflora from Bultu-Zile (central Anatolia, TΓΌrkiye): implications for Eocene ecosystems of Balkanatolia".
doi.org/10.1016/j.js...
This work has been conducted as part of @dispersal-erc.bsky.social
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04.02.2026 07:36 β€” πŸ‘ 17    πŸ” 6    πŸ’¬ 2    πŸ“Œ 3
The People Behind the ERC Dispersal project | Scientist Interview #1
YouTube video by CEREGE The People Behind the ERC Dispersal project | Scientist Interview #1

πŸŽ™οΈ Our first interview is out!
Meet Leny Montheil, geodynamicist and paleogeography specialist, as he takes us back to the Eocene to explore how primates dispersed across a changing world.
▢️ Watch it now on YouTube
youtu.be/bjzU_UIXseU

03.02.2026 17:42 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 2

A new preprint from our research group is online!
In this paper, Paul BottΓ©, PhD student in the project at @climatecerege.bsky.social, studied the evolution of continental environmental through the late Eocene and earliest Oligocene in central Anatolia.

egusphere.copernicus.org/preprints/20...

26.01.2026 13:12 β€” πŸ‘ 7    πŸ” 6    πŸ’¬ 1    πŸ“Œ 1
πŸ’πŸŒŠ Crossing oceans without boats: the mysterious overwater dispersals of ancient mammals
YouTube video by CEREGE πŸ’πŸŒŠ Crossing oceans without boats: the mysterious overwater dispersals of ancient mammals

How did mammals cross oceans millions of years ago?

Our first video introducing the ERC-funded DISPERSAL project is live on YouTube πŸŽ‰

πŸ‘‡ Check it out!
youtu.be/COdGQYkdraw

πŸŽ™οΈ First episode of a series of interviews with the scientists involved. Stay tuned β€” more interviews coming soon!

20.01.2026 14:58 β€” πŸ‘ 10    πŸ” 5    πŸ’¬ 0    πŸ“Œ 2
Preview
Philippe Taquet, chasseur de dinosaures et ancien directeur du MusΓ©um national d’histoire naturelle, est mort DestinΓ© Γ  reprendre l’industrie textile familiale, cet esprit libre a prΓ©fΓ©rΓ© la vie de chercheur d’os, dΓ©couvrant plusieurs espΓ¨ces d’animaux disparus, tout en menant une carriΓ¨re institutionnelle de premier plan. Il s’est Γ©teint le 16Β novembre, Γ  85Β ans.

Philippe Taquet, chasseur de dinosaures et ancien directeur du MusΓ©um national d’histoire naturelle, est mort

17.11.2025 10:55 β€” πŸ‘ 29    πŸ” 21    πŸ’¬ 1    πŸ“Œ 12
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Today, we organized a vulgarisation workshop about paleopalynology at the MusΓ©e Espace GaΓ―a in Montereau-Fault-Yonne for the "FΓͺte de la Science"! Rafael Cabral, Adele Giobbini and myself (with the help of @mathildelp.bsky.social) presented 3D printed pollen grains to the public.

11.10.2025 19:23 β€” πŸ‘ 6    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Last days of fieldwork in Anatolia, with Serkan Akkiraz, Paul BottΓ© and @benjaminraynaud.bsky.social! Exploring the Sivas Basin to date the onset of the modern steppe landscape with various stratigraphic and paleobotanical tools. Part of the @dispersal-erc.bsky.social project!

28.09.2025 21:16 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Paul BottΓ© from @climatecerege.bsky.social and @benjaminraynaud.bsky.social from @cr2p.bsky.social presenting their work on #balkanatolia paleoenvironments today at the yearly conference of Turkish Earth scientists in Yozgat. Back to fieldwork tomorrow!

26.09.2025 20:24 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Hi, actually the site is underwater out of the field campain (July). So, there are no visits during the rest of the year. But you can see some of the specimens in the Museum in AngoulΓͺme! The leader of the field from our lab (CR2P) is Ronan Allain.

25.09.2025 08:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Looking for pollen, vertebrate fossils and pedogenic carbonates in Anatolia! With @benjaminraynaud.bsky.social, Paul BottΓ©, @dispersal-erc.bsky.social

24.09.2025 18:34 β€” πŸ‘ 15    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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First day of the third field trip to Turkey for Paul BottΓ© and @benjaminraynaud.bsky.social. One week to collect their last samples before their ultimate task: writing their dissertation!

22.09.2025 16:59 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1
Petit carnet palΓ©o

If you want to follow each field campain: here is the blog of the paleoartist Mazan, working on the site of Angeac-Charente (it's written in French)
petitcarnetpaleo.blogspot.com?m=1

22.09.2025 04:49 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Nice day of fieldwork in the Luberon Geopark, trying to date some of their iconic fossil sites. With Pauline Coster, @benjaminraynaud.bsky.social, and many others from @dispersal-erc.bsky.social

03.09.2025 20:35 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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@benjaminraynaud.bsky.social presenting his PhD results at @cerege.bsky.social today ! Benjamin works on the evolution of ecosystems during the dispersal events we investigate in the project via pollen analysis.

02.09.2025 11:34 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collectio....

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

Carlos Jaramillo, Surangi W. Punyasena, Daurys de Alba, Roxana Alveo, Angelica Arcila, Jorge Bermudez, Jonatan Bustos et al

nph.onlinelibrary.wiley.com/doi/10.1002/...

05.08.2025 03:00 β€” πŸ‘ 22    πŸ” 11    πŸ’¬ 1    πŸ“Œ 0
Simplified flowchart illustrating generalised steps in palaeobiological research processes and the various factors that introduce inequity with regard to data collection, storage, study, analysis, publication, and reuse.

Simplified flowchart illustrating generalised steps in palaeobiological research processes and the various factors that introduce inequity with regard to data collection, storage, study, analysis, publication, and reuse.

Delighted to share our paper on data equity in #palaeobiology as part of Paleobiology's 50th anniversary issue πŸ₯³

We look at how palaeo data is collected, stored, curated & shared, and how equity in these processes is crucial for our field's future (1/n) πŸ§ͺβš’οΈ

doi.org/10.1017/pab....

23.04.2025 13:01 β€” πŸ‘ 101    πŸ” 42    πŸ’¬ 3    πŸ“Œ 2

We show that endemism started at least by 47 Ma, and possibly much earlier, in the Paleocene. Older sites are so far lacking, but we expect to publish some in the next few years (stay tuned!). With @benjaminraynaud.bsky.social @mustafayk.bsky.social and many others at @climatecerege.bsky.social

20.05.2025 11:59 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Preview
Updating the timeline of faunal endemism in Balkanatolia, the biogeographic province connecting Europe, Asia and Africa Balkanatolia is a Paleogene insular biogeographic province, spanning from southeastern Europe to the Caucasus. It is located at the crossroads of Asia…

🚨New paper alert!🚨 A long and precise stratigraphic and geochronological study led by Leny Montheil to better refine the time of formation of Balkanatolia, this strange biogeographic province that we have been studying for a decade now. (1/n)
www.sciencedirect.com/science/arti...

20.05.2025 11:51 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
Abstract EGU25-6438

Tomorrow afternoon, Paul BottΓ© @climatecerege.bsky.social will have his #EGU25 poster presentation:
doi.org/10.5194/egus...
With @alexislicht.bsky.social and @r0seturqu0ise.bsky.social.
With also @benjaminraynaud.bsky.social outside of CEREGE.
(5/10)
πŸ§ͺ βš’οΈ
#PaleoSky

28.04.2025 14:16 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1
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Amazing workshop last week in Arles, focused on how integrating geological and paleoclimatological constraints in phylogenetic and biogeographic reconstructions! 11 countries, 55 people, and 3 days of talks and brainstorming with a balanced group of biologists, geologists and climatologists.

31.03.2025 14:53 β€” πŸ‘ 10    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0

Welcome to @benjaminraynaud.bsky.social on the Blue place! Benjamin in a PhD student in Paleobotany, working with us on understanding the changes in ecosystems which could have favored the dispersal of primates and ungulates out of Asia during the Eocene.

05.12.2024 08:24 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0