Francesco Della Giustina
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just-fre.bsky.social
Francesco Della Giustina
@just-fre.bsky.social
🦴 Geologist and vertebrate paleontologist.
🌊 Interested in the evolution of Mesozoic marine predators.

📚 TA and PhD student at @universitedeliege.bsky.social

🌐 https://beacons.ai/_just_fre
Reposted by Francesco Della Giustina
Are you tired of people constantly overestimating body size of marine reptiles? No longer!

We provide equations to estimate body size in ichthyosaurians, mosasaurids, and thalattosuchians.

1/4
September 17, 2025 at 6:35 AM
Reposted by Francesco Della Giustina
New paper showing that ichthyosaurs ate vampyromorph coleoids. Did they like it ? No idea 🤷‍♂️

@universitedeliege.bsky.social @naturmusee.bsky.social @just-fre.bsky.social
@peerj.bsky.social

peerj.com/articles/19786
peerj.com
September 8, 2025 at 10:21 AM
Grateful for the chance to present my #marinereptiles research at both #EAVP2025 and #SEB2025 over the past weeks.

Huge thanks to the organisers, and all my coauthors for their support and guidance!

Looking forward to the next conferences!
July 12, 2025 at 9:25 PM
Reposted by Francesco Della Giustina
🎉New lab paper lead by @just-fre.bsky.social based on his master thesis work! Francesco and his colleagues describe new allodaposuchid material from the latest Cretaceous of Spain (as well as the importance of postcranial anatomy for croc phylogenies 😉).

www.sciencedirect.com/science/arti...
A NEW ARMORED CROCODYLIFORM FROM THE UPPER CRETACEOUS OF CATALONIA (SPAIN): NEW INSIGHT INTO THE EVOLUTION OF THE EUSUCHIAN POSTCRANIAL AND DERMAL SKELETON
The origin and early radiation of Crocodylia have shifted attention to the Upper Cretaceous of Europe, where numerous new taxa have recently been disc…
www.sciencedirect.com
June 7, 2025 at 8:06 AM
New paper out! 🚨📄

I'm excited to share that my first-authored article is officially published!

This study, started during my MSc thesis, focuses on the description and taphonomy of a crocodyliform from the Upper Cretaceous of Spain. 🐊

www.sciencedirect.com/science/arti...

1/6 🧵
A NEW ARMORED CROCODYLIFORM FROM THE UPPER CRETACEOUS OF CATALONIA (SPAIN): NEW INSIGHT INTO THE EVOLUTION OF THE EUSUCHIAN POSTCRANIAL AND DERMAL SKELETON
The origin and early radiation of Crocodylia have shifted attention to the Upper Cretaceous of Europe, where numerous new taxa have recently been disc…
www.sciencedirect.com
June 9, 2025 at 8:46 PM
Reposted by Francesco Della Giustina
🧵New paper + open database drop!
The Marine Organismal Body Size ( #MOBS ) Database is now live—85,000+ marine species, from plankton to whales, with standardized size data.
A huge leap for biodiversity, conservation, and climate science. #science #marinelife onlinelibrary.wiley.com/doi/10.1111/...
MOBS 1.0: A Database of Interspecific Variation in Marine Organismal Body Sizes
Motivation Body size is a fundamental trait influencing an organism's life history, ecology, physiology and evolutionary dynamics. While extensive body-size databases exist for terrestrial vertebrat...
onlinelibrary.wiley.com
June 5, 2025 at 1:45 PM
Reposted by Francesco Della Giustina
🚨🚨PhD position alert!🚨🚨
Do you like 🐢🐢? Or ecomorph evolution? I am offering a 36-month PhD position funded by the DFG about ecomorphology and neuroanatomy of turtles. Check out the ad here: www.senckenberg.de/en/career/sc...

Please share and if you have questions, send me a message 😉
May 30, 2025 at 8:40 AM
Reposted by Francesco Della Giustina
New paper out! You wouldnt want to be at the wrong end of a Temnodontosaurus! He would either swollow you hole, or rip you to pieces! Many congrats to Giovanni Serafini for leading this project! Very happy it's out!
onlinelibrary.wiley.com/doi/epdf/10....
May 26, 2025 at 9:31 AM
Reposted by Francesco Della Giustina
First dissertation chapter has been published in Integrative & Comparative Biology, check it out here: academic.oup.com/icb/advance-...
Investigating best-practices for applying a quantitative tooth complexity metric to fishes
academic.oup.com
May 23, 2025 at 2:05 PM
Reposted by Francesco Della Giustina
Happy Birthday, Mary Anning!

This 195-million-year-old marine reptile was discovered in Lyme Regis at some time before 1836 by the British palaeontologist Mary Anning (1799–1847).
May 21, 2025 at 9:00 AM
Reposted by Francesco Della Giustina
Introducing Asmodochelys leviathan, a new giant marine turtle from the Maastrichtian of Texas!
sjpp.springeropen.com/articles/10....
This new 72-million-year-old species was one of the sole survivors of an extinct lineage that patrolled the gulf coast of North America near the end of the Cretaceous
May 20, 2025 at 4:02 PM
Reposted by Francesco Della Giustina
Haridy, Y., Norris, S.C.P., Fabbri, M. et al. The origin of vertebrate teeth and evolution of sensory exoskeletons. Nature (2025). doi.org/10.1038/s415...
The origin of vertebrate teeth and evolution of sensory exoskeletons - Nature
Re-examination of the presumed Cambrian fossil fish Anatolepis reveals previous misidentification of aglaspidid sensory structures as dentine, a vertebrate sensory tissue, showing it to be a...
doi.org
May 21, 2025 at 5:17 PM
Reposted by Francesco Della Giustina
Paleontology oriented people please apply! Come work with us! Ask Lene about details ;)
May 21, 2025 at 7:22 AM
Reposted by Francesco Della Giustina
What's new in the world of adaptive radiation?!

Here's what we think!

academic.oup.com/evolinnean/a...

Out now in @evojlinnsoc.bsky.social! Wonderful writing this with Julia Day, @fishspeciation.bsky.social, and María del Rosario Castañeda
A global perspective on adaptive radiation: Advances, issues, and future directions
James T Stroud, Julia J Day, María del Rosario Castañeda, Christopher H Martin; A global perspective on adaptive radiation: Advances, issues, and future di
academic.oup.com
May 19, 2025 at 11:07 PM
Reposted by Francesco Della Giustina
Thrilled to announce our latest paper, published today in @nature.com on the oldest fossil amniote trackways, from the earliest Carboniferous of southeastern Australia.
www.nature.com/articles/s41...
Earliest amniote tracks recalibrate the timeline of tetrapod evolution - Nature
Analysis of a fossil trackway from the earliest Carboniferous of Australia shows prints of toes with claws, suggesting that the origin of amniotes was at least 35–40 million years earlier than pr...
www.nature.com
May 14, 2025 at 10:53 PM
New on Bluesky, and already excited to share some big news — my first co-authored paper is out (and in OA)! You can find the link in the thread below.

Thanks to everyone involved in this project!
International collaborative research just published! Michailow et al (2025). Link in comms (free)

Photo: some nice teeth in our collection (left to right): tyrannosaur; duckbill hadrosaur; (top) crocodile; (bottom) raptor; tyrannosaur with wear mark

#fossilfriday #dinosaurs
May 10, 2025 at 3:55 PM
Hi Bluesky! Finally putting this account to use. I'm an early-career paleontologist working on aquatic animals, especially marine reptiles 🐊🌊.

Excited to connect with others in paleo, evo-bio, and anyone interested in ancient ecosystems!
May 10, 2025 at 3:53 PM