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Amin El Fassi El Fehri | أمين الفاسي الفهري

@aminff.bsky.social
97 followers 82 following 6 posts

PhD candidate in palaeontology at the University of Zurich 🇨🇭 Working on all kinds of fishes from the Devonian 🐟 Hailing from Morocco 🇲🇦

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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Dr Stephan Lautenschlager @palaeostephan.bsky.social · 18/09/2026
Second new paper this week: Reconstructing the oral apparatus of the Silurian heterostracan Athenaegis. Led by @lisaschnetz.bsky.social and in collaboration with many colleagues, including @euphanerops.bsky.social (who rendered the animation) and @nitroshutter.bsky.social
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
The Palaeontological Association @thepalass.bsky.social · 07/09/2026
The taxonomy and phylogeny of British ‘cephalaspids’ onlinelibrary.wiley.com/doi/10.1111/... @morphobank.bsky.social @aminff.bsky.social @fossilrob.bsky.social @evopalaeo.bsky.social
Top left: map of the British Isles showing Lower Old Red Sandstone outcrops in orange. The map is overlaid with the palaeocoastline, palaeolatitude and palaeolongitude at the Silurian-Devonian boundary.
Top left: a morphospace occupation plot of British 'cephalaspids' grouped by basin of origin (Midlands Valley in blue; Anglo-Welsh Basin in pink). Theoretical headshield shapes for are shown at the extremeties of the moprhospace.
Bottom right: photograph of a fossil cephalaspid headshield: Cephalaspis fletti holotype (NHMUK PV P 25196); scale bar above and to the right is 10 mm.
Blue rectangle in bottom left corner is a cover image from the journal Palaeontology.
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Robert Sansom @fossilrob.bsky.social · 27/08/2026
Introducing Platyrhakis, Saigheadaspis, Ymersaspis, and Rochtarge, 4 new genera of British cephalaspids named after @aminff.bsky.social spent ages cleaning up centuries of messy taxonomy. ENJOY FOSSIL FISH 🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🏴󠁧󠁢󠁥󠁮󠁧󠁿
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Dr Alice Clement @draliceclement.bsky.social · 25/08/2026
New #lungfish just dropped! Welcome to the world, Jumisodus latus, a #Devonian lungfish from the Famennian of #Latvia! Named for the Latvian figure 'Jumis', god of fertility and harvest, whose symbol represents the tooth plate outline in this new taxon... www.tandfonline.com/doi/full/10....
tandfonline.com
A new Late Devonian dipnoan from the Ketleri Formation of Latvia
Dipnoans (lungfishes) reached their peak of taxonomic diversity and morphological disparity during the Devonian Period, followed by a pronounced decline in both thereafter. The Late Devonian (Famen...
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Amin El Fassi El Fehri | أمين الفاسي الفهري @aminff.bsky.social · 26/08/2026
🧪So happy this is finally out after almost four years! We try to bring some order to the messy taxonomy of an iconic jawless fish. 🐟 Thanks to @evopalaeo.bsky.social, Madleen, Mike, @fossilrob.bsky.social & to all who contributed to this research! onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The taxonomy and phylogeny of British ‘cephalaspids’
Osteostracans are considered the sister group of jawed vertebrates and are phylogenetically the earliest branching vertebrate lineage to exhibit true paired fins with endoskeletal support. This means...
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Joe Keating @evopalaeo.bsky.social · 08/06/2026
📢 Please repost! Want to do a Masters by Research at the University of Bristol? If you're interested in phylogenetics, morphology, macroevolution or vertebrate palaeobiology, please get in touch! More information: tinyurl.com/4h6v3s99 ⏰ Deadlines: • International: 30th June • Home: 31st July
bristol.ac.uk
Biological Sciences | Study at Bristol | University of Bristol
Find out about the University of Bristol's PhD in Biological Sciences, including entry requirements, supervisors and research groups.
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Amin El Fassi El Fehri | أمين الفاسي الفهري @aminff.bsky.social · 21/05/2026
📢🎓Open PhD position on ammonoid evolution 🦑🧬 at the Dept. of Paleontology of the University of Zurich! Interested in building ammonoid phylogenies? Check out the link below for more info. Applications will be reviewed in late June! www.pim.uzh.ch/de/institut/...
pim.uzh.ch
Open positions
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Prof Susie Maidment @tweetisaurus.bsky.social · 21/05/2026
Exporting Moroccan fossils without a licence has been illegal since 2020, but the law has been a little unclear for those outside Morocco. In our new paper, my colleague and friend Kawtar Ech-charay clearly explains the law, using our field area as a case study: link.springer.com/article/10.1...
link.springer.com
The Palaeontological Heritage of Boulemane Between Illegal Looting and Geoconservation: Issues, Challenges and Solutions - Geoheritage
Morocco possesses important palaeontological heritage, recognized at both the national and international levels, including within the Boulemane region, located in the Middle Atlas Mountains. This repu...
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Matt Friedman @friedmanlab.bsky.social · 07/05/2026
Out over the Atlantic and headed home after a few great days of intense fossil fishing w/ @aminff.bsky.social & @gilespalaeo.bsky.social in B'ham. Sorted some old problems and turned up some new ones. Until next time!
Amin, Sam, and Matt smiling in a selfie. Amin is gesturing enthusiastically toward a dry erase board covered with blurred fossil fish secrets.
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Palaeoncryptozoologist Briton @raftingzalmoxes.bsky.social · 24/04/2026
A sudden, heart-rending and tragic loss... Rest in peace, Ben Bartlett, greatest and most beloved of all paleo docu soundtrack composers. You painted for us a glorious vision of lost worlds with unforgettable music, music that shall always echo in our hearts... www.youtube.com/watch?v=HArX...
youtube.com
Giant of the Skies
YouTube video by Ben Bartlett - Topic
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Joschua Knüppe @joschuaknuppe.bsky.social · 06/04/2026
Here the result of the Escuminac Formation #paleostream! These deposits from the Devonian of Canada offer a glimpse into a coastal fish community with some absolute bangers and historical favorites. But it doesn't come without it challenges.
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Hady George @houdzgeorge.bsky.social · 23/03/2026
100 million year old fishes that left traces just before they settled in their final rest. On display at Memory of Time in Jbeil, Lebanon Over a million people have been displaced and over a thousand killed. If you feel powerless, remember you can support those in need here: gofund.me/91aa67767
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Joschua Knüppe @joschuaknuppe.bsky.social · 14/03/2026
Result from Flocking #paleostream! Tusciziphius, Cyrtograptus, Callawayia and Doryaspis
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Joschua Knüppe @joschuaknuppe.bsky.social · 07/03/2026
Results from the Flocking #paleostream! Megamastax, Ornitholestes, Tanyka and Eosteus
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Merle Greif @merlegreif.bsky.social · 15/02/2026
Our work on the histology and mineralization patterns of 3 Devonian chondrichthyan taxa from Morocco is finally out now! I am very happy to share this work and hope there will be more to come about early shark tooth histology! Thanks to all my co-authors, especially Hector Botella! rdcu.be/e34zE
rdcu.be
Diversity of tooth mineralisation patterns at the base of crown chondrichthyans
Communications Biology - The study of three in situ preserved chondrichthyan tooth files reveals histological and developmental disparity at the stem of crown chondrichthyans and provides insights...
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Ville Sinkkonen @villesinkkonen.bsky.social · 16/01/2025
Devonion fishies Elpistostege (close relative of the famous Tiktaalik) and couple of bothriolepis swimming by. Needs updating but still thinking this is one of my better paintings I have done
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
18th ISELV @iselv18.bsky.social · 03/11/2025
‼️Conference t-shirts!‼️ 👕Order your own Moroccan early #vertebrate themed #t-shirt 📝Please complete the following form before 7 Nov: forms.gle/W9NoGcBK5oo9... 📆After this date, you'll receive a link to complete your order. Don't miss out!
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
18th ISELV @iselv18.bsky.social · 30/10/2025
‼️Attention early #vertebrate enthusiasts‼️ 📝Submit your #abstract for the 18th #ISELV before 23:59 (UTC+1) on Fri 31st Oct 🌐Please follow the #submission instructions provided here: sites.google.com/view/iselv-1... 🦈We look forward to receiving your contributions!
Photograph of a motorcycle parked in the Moroccan desert. The bold text at the top of the image reads: "Abstract submission deadline 31st october" (c: Time Haye 2024)
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Corinne Mensforth @corinnemensforth.bsky.social · 21/10/2025
30hrs in Sydney/Gadigal country contained far more lobe-fins than I anticipated! pt. 1 at Sealife Aquarium
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Matt Friedman @friedmanlab.bsky.social · 20/10/2025
Now out in Tim Smithson's Festschrift: neurocranial anatomy (incl. endocast) of the Early Devonian Durialepis et al. OA for your porolepiform pondering pleasure. W/ @gilespalaeo.bsky.social @jorgemondejar.bsky.social @tom-challands.bsky.social & S. Henderson www.cambridge.org/core/journal...
Figure showing complete endocast of Durialepis in dorsal view. Upper panels show this with only partial sensory canal overlay; lower panel shows elaborately ramifying branches of main canals.CT renderings and interpretive drawings of the anterior half of the endocast of Durialepis.CT renderings and interpretive drawings of the posterior half of the endocast of Durialepis, showing the skeletal labyrinth.CT renderings and interpretive drawings of the anterior half of the endocast of the holoptychiid porolepiform Glyptolepis.
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
18th ISELV @iselv18.bsky.social · 25/09/2025
‼️Chirp, chirp‼️ 🐣Early bird registration for the 18th ISELV closes in 5 DAYS! 📆Make sure you register before September 30th for lower fees! 🌐Follow this link: sites.google.com/view/iselv-1...
Two birds sitting on a hillside in the Moroccan desert. The bold text in the background says “Early bird registration, 5 days”.
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Joschua Knüppe @joschuaknuppe.bsky.social · 24/08/2025
Here the result from the Kuanti #paleostream! This piece was brought basically back from the brink of being an empty wasteland in the last few days.
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
18th ISELV @iselv18.bsky.social · 20/08/2025
‼️Registration for the 18th ISELV is now open!‼️ 🌐Follow this link to save your spot now! sites.google.com/view/iselv-1... 🚨Early bird deadline is 31 Sept 🐟Join us in Morocco for some fishy business!
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Robert Rose @robear.bsky.social · 06/07/2025
My girlfriend found this at the store today- a tissue box with stylized #paleoart of prehistoric, pre-Mesozoic sea creatures on it! Very unexpected- features anomalocaris, tremataspis, zenaspis, and dunkleosteus.
A blue unopened box of Kleenex tissues with a pattern of smiling prehistoric sea creatures on it. There is also a fun fact about Dunkleosteus on the top, that it lived 358 million years ago and was as big as a great white shark.
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Amin El Fassi El Fehri | أمين الفاسي الفهري @aminff.bsky.social · 06/08/2025
Synchrotron CT reveals a slew of gnathostome characters in a jawless fish. Time to rethink the jawless-to-jawed transition for the umpteenth time. Also a much appreciated update to osteostracan internal anatomy. www.nature.com/articles/s41...
nature.com
Novel assembly of a head–trunk interface in the sister group of jawed vertebrates - Nature
Imaging of a Devonian jawless fish reveals advanced features previously thought to be exclusive to jawed vertebrates, challenging the idea that jaws were the primary driver for the evolution of d...
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Robert Sansom @fossilrob.bsky.social · 31/07/2025
New palaeo-PhD opportunity! Will you be the one to figure out the anatomy and function of fossil jawless fish? Come join the team! Application Deadline August 22nd, funding for UK student only (sorry) www.findaphd.com/phds/project...
Lepidaspis by Nobu Tomura
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
18th ISELV @iselv18.bsky.social · 09/07/2025
📢 ISELV field trips in #Morocco! ⛰️⛏️🪨🦴 Our first field trip (29/01-02/02) will take you through #Mesozoic sites in the Western Atlas! 🦖🦎 The second field trip (09-14/02) will focus on the iconic #Devonian sites of the Anti-Atlas! 🐟🦈 Registration is coming soon! #palaeontology #fossil #vertebrate
Palaeontologists looking for fossils at the Devonian locality of Hamar Laghdad, aka. the "Red Cliff".Two palaeontologists looking at an elevated rock face and taking notes. In the background, a group of five camels passes by a dry river bed in at the foot of the hill.A group of palaeontologists making their way down the "Red Cliff", the Hamar Laghdad fossil site.Palaeontolgists sitting on a hill site at Hamar Laghdad, the "Red Cliff".
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Amin El Fassi El Fehri | أمين الفاسي الفهري @aminff.bsky.social · 04/07/2025
Join us in Morocco 🇲🇦 next year for some fishy business! 🐟
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Hady George @houdzgeorge.bsky.social · 13/06/2025
So we’re just supposed to share our world with these psychos who can bomb & kill anywhere and anytime they want. This is supposed to be our new normal. There is so much more death to come, and we are supposed to be okay with it, or even thankful for the slaughter.
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
J Pardo @jdpardo.bsky.social · 03/06/2025
Latest Devonian sagenodontid from Morocco. Further evidence that the Carboniferous-Permian lungfish assemblage (ctenodontids, conchopomatids, sagenodontids, gnathorhizids) all originated by the Hangenberg extinction rather than a single Carboniferous diversification peerj.com/articles/193...
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Dr Alice Clement @draliceclement.bsky.social · 03/06/2025
Pleased to have played a small part in this paper, led by @aminff.bsky.social Amin El Fassi El Fehri, describing “A new origin of the ‘modern’ lungfish #dentition revealed by taxonomic overlap between #Devonian and #Carboniferous dipnoans” out today in @peerj.bsky.social 🦷🐟 peerj.com/articles/193...
peerj.com
A new origin of the ‘modern’ lungfish dentition revealed by taxonomic overlap between Devonian and Carboniferous dipnoans
Lungfishes (Dipnoi, Sarcopterygii) initially radiated in the Early Devonian, and reached the apogee of their diversity during this period, especially with regard to their dentitions. Following the end...
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Amin El Fassi El Fehri | أمين الفاسي الفهري @aminff.bsky.social · 03/06/2025
Delighted to have the first paper of my PhD published today in @peerj.bsky.social on a wonderful lungfish tooth plate from Morocco 🐟🦷! With @draliceclement.bsky.social, @merlegreif.bsky.social, & colleagues. peerj.com/articles/193...
peerj.com
A new origin of the ‘modern’ lungfish dentition revealed by taxonomic overlap between Devonian and Carboniferous dipnoans
Lungfishes (Dipnoi, Sarcopterygii) initially radiated in the Early Devonian, and reached the apogee of their diversity during this period, especially with regard to their dentitions. Following the end...
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Reposted by Amin El Fassi El Fehri | أمين الفاسي الفهري
Merle Greif @merlegreif.bsky.social · 29/01/2025
As my very first post here on Bluesky I am happy to share our article in Royal Society about tooth wear and diet in the large Devonian chondrichthyan Ctenacanthus concinnus from Morocco royalsocietypublishing.org/doi/10.1098/...
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