Jean-François Cudennec
@jfcudennec.bsky.social
PhD. Old mollusks lover : Sclerochronology and isotopes in archaeological or paleontological context.
#PaleoSky curator and limpet nerd.
Also nature photographer:
https://bsky.app/profile/jfcphotos.bsky.social
#PaleoSky curator and limpet nerd.
Also nature photographer:
https://bsky.app/profile/jfcphotos.bsky.social
"do not eat the forbidden gummy bear lollll"
Someone actually 3D-scanned the Neolithic amber bear, printed molds, and created edible cola-flavored gummy bears based on them.
Who's going to stop me from eating the forbidden gummy bear now ?? 🐻
Someone actually 3D-scanned the Neolithic amber bear, printed molds, and created edible cola-flavored gummy bears based on them.
Who's going to stop me from eating the forbidden gummy bear now ?? 🐻
February 6, 2026 at 2:14 PM
"do not eat the forbidden gummy bear lollll"
Someone actually 3D-scanned the Neolithic amber bear, printed molds, and created edible cola-flavored gummy bears based on them.
Who's going to stop me from eating the forbidden gummy bear now ?? 🐻
Someone actually 3D-scanned the Neolithic amber bear, printed molds, and created edible cola-flavored gummy bears based on them.
Who's going to stop me from eating the forbidden gummy bear now ?? 🐻
1/2 Two different limpet shells, belonging to the same species (P. vulgata).
The flat one comes from low shore (large foot + reduced shell surface to resist strong waves and currents) while the pointed one comes from high shore (ribs + high shell help resist dessication by creating shadowed area)
The flat one comes from low shore (large foot + reduced shell surface to resist strong waves and currents) while the pointed one comes from high shore (ribs + high shell help resist dessication by creating shadowed area)
February 2, 2026 at 8:43 AM
1/2 Two different limpet shells, belonging to the same species (P. vulgata).
The flat one comes from low shore (large foot + reduced shell surface to resist strong waves and currents) while the pointed one comes from high shore (ribs + high shell help resist dessication by creating shadowed area)
The flat one comes from low shore (large foot + reduced shell surface to resist strong waves and currents) while the pointed one comes from high shore (ribs + high shell help resist dessication by creating shadowed area)
Anthropocene stray dogs
January 31, 2026 at 7:41 PM
Anthropocene stray dogs
Agricultural policy or performance art ?
In 1978 in Finistère (my home 💙), President Giscard d’Estaing’s visit was disrupted by farmers who tagged his helicopter and hung a dead pig from its blade.
The impact on farmers’ lives remains unclear, but the protest left an iconic image.
In 1978 in Finistère (my home 💙), President Giscard d’Estaing’s visit was disrupted by farmers who tagged his helicopter and hung a dead pig from its blade.
The impact on farmers’ lives remains unclear, but the protest left an iconic image.
January 30, 2026 at 11:49 AM
Agricultural policy or performance art ?
In 1978 in Finistère (my home 💙), President Giscard d’Estaing’s visit was disrupted by farmers who tagged his helicopter and hung a dead pig from its blade.
The impact on farmers’ lives remains unclear, but the protest left an iconic image.
In 1978 in Finistère (my home 💙), President Giscard d’Estaing’s visit was disrupted by farmers who tagged his helicopter and hung a dead pig from its blade.
The impact on farmers’ lives remains unclear, but the protest left an iconic image.
Knowing that the earliest form of art in human and pre-human history could be an Indonesian shell that some Homo erectus dude engraved with zigzags 500,000 years ago definitely satisfies the shell nerd in me.
#FossilFriday #PaleoSky 🏺 🦑
#FossilFriday #PaleoSky 🏺 🦑
January 16, 2026 at 8:48 AM
Knowing that the earliest form of art in human and pre-human history could be an Indonesian shell that some Homo erectus dude engraved with zigzags 500,000 years ago definitely satisfies the shell nerd in me.
#FossilFriday #PaleoSky 🏺 🦑
#FossilFriday #PaleoSky 🏺 🦑
Map of Viking settlements and outposts in Iceland, Greenland and North America - 1010 AD.
For scientific interest only, an absolutely not linked with current international situation ❄️
For scientific interest only, an absolutely not linked with current international situation ❄️
January 16, 2026 at 8:26 AM
Map of Viking settlements and outposts in Iceland, Greenland and North America - 1010 AD.
For scientific interest only, an absolutely not linked with current international situation ❄️
For scientific interest only, an absolutely not linked with current international situation ❄️
🏺Facebook archaeology groups might not be completely dead after all
December 27, 2025 at 8:38 AM
🏺Facebook archaeology groups might not be completely dead after all
🪶 Just a few days after this post, a remarkable bird is causing a stir in a small village of my native Brittany: a Belted Kingfisher, coming from North America.
As a result, between 30 and 40 twitchers on site, , coming from all over the country, sometimes up to 150 ??
As a result, between 30 and 40 twitchers on site, , coming from all over the country, sometimes up to 150 ??
December 21, 2025 at 4:18 PM
🪶 Just a few days after this post, a remarkable bird is causing a stir in a small village of my native Brittany: a Belted Kingfisher, coming from North America.
As a result, between 30 and 40 twitchers on site, , coming from all over the country, sometimes up to 150 ??
As a result, between 30 and 40 twitchers on site, , coming from all over the country, sometimes up to 150 ??
Happy winter solstice ! ❄️🌞
December 21, 2025 at 4:05 PM
Happy winter solstice ! ❄️🌞
🏺 For #TombTuesday, nothing less than the oldest monument of Europe : the Cairn of Barnenez (Finistère, France).
A 75m long chambered cairn , 2300 years older than the Great Pyramids of Egypt, made of 11 different chambers.
As André Malraux called it, "a true prehistoric Parthenon".
A 75m long chambered cairn , 2300 years older than the Great Pyramids of Egypt, made of 11 different chambers.
As André Malraux called it, "a true prehistoric Parthenon".
December 16, 2025 at 12:36 PM
🏺 For #TombTuesday, nothing less than the oldest monument of Europe : the Cairn of Barnenez (Finistère, France).
A 75m long chambered cairn , 2300 years older than the Great Pyramids of Egypt, made of 11 different chambers.
As André Malraux called it, "a true prehistoric Parthenon".
A 75m long chambered cairn , 2300 years older than the Great Pyramids of Egypt, made of 11 different chambers.
As André Malraux called it, "a true prehistoric Parthenon".
Finally !
"Stone Simulator" has deployed a free multiplayer update on Steam.
Becoming a stationary stone and observing environmental changes over simulated time can now be done with four of your friends in the same lobby !
⚒️ 👾
"Stone Simulator" has deployed a free multiplayer update on Steam.
Becoming a stationary stone and observing environmental changes over simulated time can now be done with four of your friends in the same lobby !
⚒️ 👾
December 15, 2025 at 11:23 PM
Finally !
"Stone Simulator" has deployed a free multiplayer update on Steam.
Becoming a stationary stone and observing environmental changes over simulated time can now be done with four of your friends in the same lobby !
⚒️ 👾
"Stone Simulator" has deployed a free multiplayer update on Steam.
Becoming a stationary stone and observing environmental changes over simulated time can now be done with four of your friends in the same lobby !
⚒️ 👾
General De Gaulle visits Military Uranium Enrichment Plant at Pierrelate.
We already had Giscardpunk, but how about De Gaulle the Techno-Priest ?
We already had Giscardpunk, but how about De Gaulle the Techno-Priest ?
December 15, 2025 at 7:40 PM
General De Gaulle visits Military Uranium Enrichment Plant at Pierrelate.
We already had Giscardpunk, but how about De Gaulle the Techno-Priest ?
We already had Giscardpunk, but how about De Gaulle the Techno-Priest ?
And oil is just highly processed bio-sourced solar energy so what's the problem after all
December 15, 2025 at 11:43 AM
And oil is just highly processed bio-sourced solar energy so what's the problem after all
Funny timing to post this. Probably zero link with the recent breakthrough from EURatom and EUROfusion programs 🥸 🇪🇺
December 15, 2025 at 10:53 AM
Funny timing to post this. Probably zero link with the recent breakthrough from EURatom and EUROfusion programs 🥸 🇪🇺
I'm not working specifically on sea level changes, but you should definately look at the works of Pierre Stéphan (LETG, University of Western Brittany), he is the guy !
December 15, 2025 at 10:03 AM
I'm not working specifically on sea level changes, but you should definately look at the works of Pierre Stéphan (LETG, University of Western Brittany), he is the guy !
My lab at @univbrest.bsky.social hitting headlines again!
A giant fishweir made of 62 monoliths and measuring 120x20m, has been discovered near Sein island (Brittany).
It's the largest underwater construction in France, and it was built by Mesolithic hunter gatherer 🤯
#PaleoSky #MegalithMonday🏺
A giant fishweir made of 62 monoliths and measuring 120x20m, has been discovered near Sein island (Brittany).
It's the largest underwater construction in France, and it was built by Mesolithic hunter gatherer 🤯
#PaleoSky #MegalithMonday🏺
December 15, 2025 at 9:12 AM
My lab at @univbrest.bsky.social hitting headlines again!
A giant fishweir made of 62 monoliths and measuring 120x20m, has been discovered near Sein island (Brittany).
It's the largest underwater construction in France, and it was built by Mesolithic hunter gatherer 🤯
#PaleoSky #MegalithMonday🏺
A giant fishweir made of 62 monoliths and measuring 120x20m, has been discovered near Sein island (Brittany).
It's the largest underwater construction in France, and it was built by Mesolithic hunter gatherer 🤯
#PaleoSky #MegalithMonday🏺
Kees Scherer - Relief at a Ptolemaic Temple
Egypt, 1968 🏺
Egypt, 1968 🏺
December 14, 2025 at 3:23 PM
Kees Scherer - Relief at a Ptolemaic Temple
Egypt, 1968 🏺
Egypt, 1968 🏺
Amazing find !
But (and I don’t want to be too chauvinistic here) we have an older example in Brittany 🤓
Menez Dregan rock shelter in Finistère harbored several hearth dated back to 475ka (probably made H. heidelbergensis)
#PaleoSky 🏺⚒️
But (and I don’t want to be too chauvinistic here) we have an older example in Brittany 🤓
Menez Dregan rock shelter in Finistère harbored several hearth dated back to 475ka (probably made H. heidelbergensis)
#PaleoSky 🏺⚒️
December 13, 2025 at 9:43 PM
Amazing find !
But (and I don’t want to be too chauvinistic here) we have an older example in Brittany 🤓
Menez Dregan rock shelter in Finistère harbored several hearth dated back to 475ka (probably made H. heidelbergensis)
#PaleoSky 🏺⚒️
But (and I don’t want to be too chauvinistic here) we have an older example in Brittany 🤓
Menez Dregan rock shelter in Finistère harbored several hearth dated back to 475ka (probably made H. heidelbergensis)
#PaleoSky 🏺⚒️
It took the cat a millennium to reach Ireland from England
December 12, 2025 at 8:32 AM
It took the cat a millennium to reach Ireland from England
14/ This presentation gave me some real Theodore Monod vibes : working on paleontological remains of extinct species, found in Neolithic sites, as a marine biologist in the middle of the desert, that's what childhood me thought real exploration looked like...
December 9, 2025 at 11:46 AM
14/ This presentation gave me some real Theodore Monod vibes : working on paleontological remains of extinct species, found in Neolithic sites, as a marine biologist in the middle of the desert, that's what childhood me thought real exploration looked like...
13/ And it's not over: as the researcher told us during the meeting, there's more diversity (number of ammonite and nautilus species and genus) in the ritual site that in the surrounding desert.
These people were really good fossil hunters, and some their collection grounds remains unknown yet !
These people were really good fossil hunters, and some their collection grounds remains unknown yet !
December 9, 2025 at 11:46 AM
13/ And it's not over: as the researcher told us during the meeting, there's more diversity (number of ammonite and nautilus species and genus) in the ritual site that in the surrounding desert.
These people were really good fossil hunters, and some their collection grounds remains unknown yet !
These people were really good fossil hunters, and some their collection grounds remains unknown yet !
10/ Some of these ornaments (red sandstone bracelets, beads) are identical to those from the Neolithic site of Ba'ja near Petra. Khashabiyeh hunters were connected to sedentary highland populations and were active part of exchange networks.
December 9, 2025 at 11:46 AM
10/ Some of these ornaments (red sandstone bracelets, beads) are identical to those from the Neolithic site of Ba'ja near Petra. Khashabiyeh hunters were connected to sedentary highland populations and were active part of exchange networks.
9/ The deposit isn't isolated: carved stelae with faces and kite representations; altar stones worn by use; broken arrowheads (sacrificial?); stone phalluses and animal figurines; ornaments...
December 9, 2025 at 11:46 AM
9/ The deposit isn't isolated: carved stelae with faces and kite representations; altar stones worn by use; broken arrowheads (sacrificial?); stone phalluses and animal figurines; ornaments...
8/ These fossils were planted vertically, and were interpreted as an "assembly of little figures." A symbolic use previously unknown in the Neolithic Near East, revealing unexpected ritual sophistication and very cool display attention.
December 9, 2025 at 11:46 AM
8/ These fossils were planted vertically, and were interpreted as an "assembly of little figures." A symbolic use previously unknown in the Neolithic Near East, revealing unexpected ritual sophistication and very cool display attention.
7/ The site became exceptional with the 2021 discovery of an unprecedented ritual deposit. Behind anthropomorphic carved stelae (one 1.12 m tall), archaeologists found 150 perfectly arranged fossils : ammonites and nautiluses.
Finally, some marine inverts !
Finally, some marine inverts !
December 9, 2025 at 11:46 AM
7/ The site became exceptional with the 2021 discovery of an unprecedented ritual deposit. Behind anthropomorphic carved stelae (one 1.12 m tall), archaeologists found 150 perfectly arranged fossils : ammonites and nautiluses.
Finally, some marine inverts !
Finally, some marine inverts !