Guillermo Navalón

RyC fellow at UAH (Madrid) | Palaeobiologist interested in birds 🦅🦉🦜🦤 and the evolution of organismal form in vertebrates 🦴

[Guillermo Navalón @GNavalon]

Tired of flattened early bird fossils?

Today is your lucky day.

Very happy to finally welcome 'Navaornis hestiae' to the world! It allowed us to see for the first time a (near)complete enantiornithine brain.

Today in @Nature: https://t.co/rVj52qzkNH

#spinningskull

[Narimane Chatar @NarimaneChatar]

Excited to share our latest study highlighted on the cover of @ScienceMagazine🥳Combining a 3D dataset of 250 taxa, 3D modelling & printing and material testing; we deciphered the form-function relationship in the lower🦷of mammals 1/16🧵https://t.co/Jnd5Ovu60A

[Miguel Díaz de León @MiguelDLM]

Through geometric morphometrics and R-based modeling, this tool enables the adjustment of morphospace parameters to simulate shape transitions.

Working in progess

[elDiario.es @eldiarioes]

❗ Cada año, cerca de 28.000 millones de euros cambian de manos en España

@eldiarioes publica una estimación de quién paga y quién recibe la gran transferencia del alquiler en España https://t.co/r6MwrswLEP

[Guillermo Navalón @GNavalon]

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[Matteo Fabbri @tetaneuron]

If you are interested in our research, lab members, and for PhD and Postdoc opportunities, this website is for you! Link: https://t.co/sV028nzZAF

[Agencia Estatal de Investigación @AgEInves]

🎉 ¡Estrenamos un nuevo espacio web dedicado al Programa Ramón y Cajal!
🔹Dos idiomas: 🇪🇸🇬🇧
🔹Información completa sobre la convocatoria
🔹Trayectoria e histórico de ediciones anteriores
🔹Novedades convocatoria 2026
👉https://t.co/T0mFcWMWh8

📰https://t.co/kR0AaGKP2u
#RyC

[Fernando Blanco @FernandoBlancoS]

Thrilled to start today as a Severo Ochoa Fellow at the Doñana Biological Station @ebdonana ! !
Over the next three years, I will study the macroecological evolution of vertebrate faunas across deep time 🌍🦴

[JH @JHemiptera]

Representative Mesozoic avialans, except Enantiornithes

[Guillermo Navalón @GNavalon]

https://t.co/vkS96qSkHK

[David Ullrich @DavidUllrich202]

Two marsupials believed extinct for 6000 years found alive

Indigenous people in Papua, Indonesia, have helped scientists track down two animals that were thought to have gone extinct thousands of years ago: a relative of Australia’s greater glider and a palm-sized possum with a bizarre, elongated finger

https://t.co/p8FlDm1vyj

https://t.co/vgzSrfYFcy

[James Albert 🐟 🇺🇦 @JamesAl0410008]

Cryptic species may differ in functionally important phenotypes that were not traditionally used by taxonomists in recognizing species, for example olfactory cues, electric signals, physiological traits associated with soil or water chemistry, chromosomal organization etc.

[Guillermo Navalón @GNavalon]

@dvpaleo Muchas gracias! Enhorabuena a ti también!!

[Guillermo Navalón @GNavalon]

Bienvenido Gorgonavis!!

First longirostrine enantiornithine from outside of China.

Paper here: https://t.co/aHp9CbyuVV

[Museo de Paleontología de Castilla-La Mancha @MuPaclm]

🦴✨ Gorgonavis alcyone, nueva ave del Cretácico hallada en Las Hoyas.
Un cráneo excepcional que refuerza su papel clave entre Asia y Europa. Presentada en el MUPA, consolida el yacimiento como referente internacional.

[RTVE Castilla-La Mancha @RTVEclm]

🐦‍⬛Descubierta en Las Hoyas, en Cuenca, una nueva especie de ave, el Gorgonavis Alcyone
Habitó el humedal prehistórico hace 125 millones de años
@MuPaclm @JCCMCuenca @culturaenclm @rtvenoticias

[Guillermo Navalón @GNavalon]

Great thread by @smnebreda welcoming our very own new Spanish Mesozoic bird, from the fantastic Las Hoyas fossil site in Cuenca!

[Sergio M. Nebreda @smnebreda]

Say👋 to *Gorgonavis alcyone*, the newest enantiornithine bird from the Early Cretaceous of Spain✨🐦

We welcome here the 1st adult cranial remains of a bird from the fossil site of Las Hoyas, and the 1st longipterygid out of China...

Thread!!🧵👇

Paleart by @RocOlivePous

[Iris Menéndez @PALEOiris]

🧵 Why are there so many habitat-specialist squirrels?
A new global study explores how habitat specialization has shaped squirrel evolution 👇🐿️🌍

[Transmitting Science | Online courses and more @TransmitScience]

New and long-standing collaborations coming together in the same place. ✨
A few days at Valencia’s Botanical Gardens during the X Meeting of the Spanish Society for Evolutionary Biology.

#SESBE2026 #EvolutionaryBiology  #WeareTransmittingScience

[Abi Crane @GruiformAbi]

🚨NEW PAPER OUT🚨
The anatomy of bird lower jaw bones has been understudied...until now! Here, we examine avian mandibular anatomy, answering some and raising more questions about the phylogenetic affinities of key early crown-group birds. Read on!
https://t.co/PyEFWQ9YZq

[Dan Baldassarre @evornithology]

Holy shit has anyone else checked out this incredible new tool on @birdsoftheworld??? Just straight up cruising around the phylogeny of 11,000+ birds. Incredible stuff. If you haven't ponied up for BoW yet, now's the time. https://t.co/PYZDgp3I4b

[Guillermo Navalón @GNavalon]

@FerranSayol @UAHes Gracias tio! Vas a la SESBE? Sería guay ponernos al día!

[Guillermo Navalón @GNavalon]

Beyond excited to announce that as of today I officially started a Ramón y Cajal 5-year senior fellowship (tenure-track) at @UAHes in Madrid, if you are interested in birds & vertebrate macroevolution & you like sun & good food, hit me up to explore postdoc or PhD opportunities!