Merle Greif

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)

‼️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!

30.10.2025 11:36 — 👍 1    🔁 2    💬 0    📌 0

Two birds sitting on a hillside in the Moroccan desert. The bold text in the background says “Early bird registration, 5 days”.

‼️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...

25.09.2025 11:25 — 👍 1    🔁 2    💬 0    📌 0

‼️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!

20.08.2025 01:42 — 👍 4    🔁 2    💬 0    📌 0

Prehistoric sharks Horizons - In brief

The fossilised teeth 🦷 of a prehistoric 🦈 shark reveal how this apex predator caught and ate its prey. 👇
@merlegreif.bsky.social

21.07.2025 06:00 — 👍 1    🔁 1    💬 0    📌 0

New studies highlight the use and limitations of teeth as ecological proxies in ancient sharks — Dr. Jack A. Cooper In 2023, I published my first PhD chapter as a scientific paper – producing a framework to infer shark traits from tooth measurements. Being based on living sharks, I would subsequently apply this fra...

New #ScienceCommunication website blog from me. Here, I reflect on a framework inferring ecological traits from shark teeth from my PhD & look at 2 fascinating studies that took it further than even I thought possible 🦈

Give it a read here:
www.drjackacooper.com/writing/new-...

04.08.2025 13:23 — 👍 4    🔁 3    💬 0    📌 0

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

‼️To all early vertebrate enthusiasts‼️

The 18th International Symposium on Early and Lower Vertebrates #ISELV will be held in Berrechid, Morocco on 3-8 February 2026! 🐟🦈🦎🦴

We look forward to hosting you there!

For more info, see our website (link in bio)

#fish #vertebrate #palaeontology #fossils

04.07.2025 10:02 — 👍 4    🔁 3    💬 0    📌 1

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