Guillermo Navalón

@gnavalon.bsky.social

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

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

Bowerbirds are Australo-Papuan birds engaging in some of the most flamboyant displays among vertebrates, and they might have been in New Zealand - Aotearoa in the Miocene too! Amazing descriptive research with a tinge of quantitative flair lead by @lizzysteell.bsky.social Check it out! 👇

Lizzy Steell@lizzysteell.bsky.social · 10mo ago

🦴New fossil alert🦴 Introducing Aeviperditus gracilis, a possible bowerbird from the Miocene of New Zealand. My first fossil description! Artwork by the amazing Sasha Votyakova (Te Papa CC-BY-SA) (🧵1/11)

An artist's reconstruction of the St Bathans bowerbird. A small bird with long feet, coloured in dark olive green and yellow plumage, with a bright yellow eye. It's holding a thin twig in it's thick, sturdy beak and the bird is perched on a stick.

This research mahi on the St Bathans bowerbird was led by the amazing @lizzysteell.bsky.social of the @fieldpalaeo.bsky.social lab. She is one of the up and coming palaeontologists working on passerines (songbirds) and definitely one to watch.

Nic Rawlence@nicrawlencenz.bsky.social · 10mo ago

Welcome to the world Aevipertidus gracilis - the gracile one from a lost age. 14-19 Mya ancient #NewZealand appears to have had a bowerbird. Check out this amazing research mahi led by Elizabeth Steell (www.tandfonline.com/doi/full/10....). Artwork by Sasha Votyakova/Te Papa CC-BY-SA. 1/9 🧵

🚨Anyone want a job?🚨 We have two #postdocs up for grabs! 🧪 - cell developmental biology/#evodevo/#neuroevodevo - bioinformatics and molecular biology Both working on brain evolution in Heliconiini butterflies Details below! Please repost 🙏 1/n

Millions of birds nest in the Arctic each year. But did you know they’ve been doing this since the Cretaceous? Can’t believe I finally get to share that our paper on the birds of the Prince Creek Formation is out in ‪@science.org (and on the cover)! 🧵 Art: Gabriel Ugueto ‪@serpenillus.bsky.social

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Congratulations to @lizzysteell.bsky.social for the publication of her PhD magnum opus🥳🥳🥳New index to evaluate homoplasy in morph. datasets & tons of fun read about the effects of levels of homoplasy in macroevolutionary patterns! #homoplasyisnotdusty #superproud #doseefig6

Lizzy Steell@lizzysteell.bsky.social · last yr.

It's finally out! Together with Allison Yi Hsiang and @fieldpalaeo.bsky.social, we explored relative homoplasy in a range of bird matrices and introduce a new parsimony measure, the relative homoplasy index (RHI) (1/n) academic.oup.com/zoolinnean/a...