Amin El Fassi El Fehri

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...

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...

06.08.2025 17:15 — 👍 1    🔁 0    💬 0    📌 0

Lepidaspis by Nobu Tomura

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...

31.07.2025 09:40 — 👍 92    🔁 69    💬 3    📌 1

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".

📢 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

09.07.2025 13:30 — 👍 5    🔁 5    💬 0    📌 0

Join us in Morocco 🇲🇦 next year for some fishy business! 🐟

04.07.2025 10:04 — 👍 0    🔁 0    💬 0    📌 0

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.

13.06.2025 09:41 — 👍 1    🔁 1    💬 0    📌 0

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...

03.06.2025 21:49 — 👍 19    🔁 4    💬 0    📌 0

Thanks!

03.06.2025 12:25 — 👍 1    🔁 0    💬 0    📌 0

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...

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...

03.06.2025 09:23 — 👍 7    🔁 5    💬 0    📌 0

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...

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...

03.06.2025 09:41 — 👍 21    🔁 13    💬 1    📌 1

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/...

29.01.2025 08:09 — 👍 14    🔁 4    💬 0    📌 0