Guillermo Navalón

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Guillermo Navalón

Guillermo Navalón

@GNavalon

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

Universidad de Alcala, Madrid Beigetreten Mayıs 2008
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Guillermo Navalón
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: nature.com/articles/s4158… #spinningskull
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David Ullrich
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 newscientist.com/article/251808… docs.google.com/document/d/1Ps…
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James Albert 🐟 🇺🇦
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.
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Andrej Spiridonov@AndrejSpiridon4

Cryptic species is an interesting case of macroevolutionary dynamics, which can tell us something (unknown) about the underlying process: you have cladogenesis which do not produce punctuation, and thus preserves stasis. CC: @niles_eldredge @svalver @PalaeoPhilo @CoelhoPre

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Daniel Vidal
Daniel Vidal@dvpaleo·
@GNavalon Enhorabuena Sergio Guille Kiko Jesus et al!!! 🤘🏼🤘🏼🤘🏼🤘🏼
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Iris Menéndez
Iris Menéndez@PALEOiris·
🧵 Why are there so many habitat-specialist squirrels? A new global study explores how habitat specialization has shaped squirrel evolution 👇🐿️🌍
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Abi Crane
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! link.springer.com/article/10.118…
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Dan Baldassarre
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. birdsoftheworld.org/bow/phylogeny
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Guillermo Navalón
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!
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鳥乃骨多M
鳥乃骨多M@torinohonetam·
＃骨格デザイン研究所 動物の生態をよく見ている方にこそ「骨」の話を聞いてもらいたい。そして、「へー知らんかった。でもそういわれると、納得！」と言わせたい！ 骨を知れば、動物のことがもっと理解できる‥そう信じています。 ＃いいインコの日　#Mの頭蓋キネシス
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Museo de Paleontología de Castilla-La Mancha
Museo de Paleontología de Castilla-La Mancha@MuPaclm·
🌿Semana de la Ciencia🌿 Con una visión innovadora y amena, Sergio Martínez Nebreda (Johns Hopkins University, Baltimore) nos acercó a conceptos de la evolución, como el paralelismo y la convergencia, a través de sorprendentes ejemplos reales de organismos fósiles y actuales.
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Lizzy Steell
Lizzy Steell@LizzySteell·
A trait similarity analysis revealed it was very similar in shape to the bowerbirds (Ptilonorhynchidae) from Australia and New Guinea, which are not endemic in New Zealand or known from the NZ fossil record! (5/11)
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Guillermo Navalón
Guillermo Navalón@GNavalon·
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 Check it out! 👇
Lizzy Steell@LizzySteell

🦴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)

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