David Horcajada-Tejero

@davidhorcajada.bsky.social

Biologist. PhD candidate, working on integrative taxonomy of liverworts. Interested in systematics, plant evolution and paleobotany, languages, and so many other things. 🏳️‍🌈

Finally, my first publication is out! We describe an exceptionally preserved new species of Metzgeriaceae liverwort from the Lower Cretaceous and reveal new insights into its growth mode and autoecology as an inhabitant of the subtropical wetlands of Las Hoyas. Give it a read if you are interested!

The Palaeontological Association@thepalass.bsky.social · 5d ago

When growth form fossilizes: a new liverwort species from the Cretaceous Las Hoyas site onlinelibrary.wiley.com/doi/10.1111/... @davidhorcajada.bsky.social #FossilFriday

Collage of photographs and diagrams of fossil and living liverworts.
Top left: carbonized compression fossil from the Cretaceous Las Hoyas site (MUPA-LH31437). Darker branched fossil on a paler matrix. Scale bar on left is 1 cm. Overlapping this, in the middle of the image is a coloured branched scheme used to measure the fossils, showing different growth modules as different colours.
Top right: annotated photograph of another fossil liverwort: new species Metzgeriites gynothallicus (MUPA-LH 28894). Below that is a photograph of the extant taxon Metzgeria, showing similar features. Scale bars for both of these images are 250 microns.
Bottom right are two photographs of living liverworts with different growth modes: a dendroid form on the left and a 'thalloid mat' growing on a tree branch on the right.
Blue rectangle in bottom left corner is a cover image from the journal Palaeontology.

Happy to share good news! Our ApTaChil proposal has been awarded national funding! Co-led with @bryomedina.bsky.social and with a mutidisciplinary team on board. Looking forward to exploring the systematics and biomedical potential of Plagiochila @uam.es @cbm-csic-uam.bsky.social @ucm.es

Rafael Medina@bryomedina.bsky.social · last yr.

📣🥳 Our project ApTaChil has been recommended for funding by @ageinves.bsky.social (PID2024-156818NB-I00) to tackle the systematics of Plagiochila sect. Plagiochila with Hyb-Seq, morphometrics & AI and explore its biomedical promise 🌿🧬🧪 #bryophytes #liverworts #systematics #biotech #ApTaChil #Botany

4 years of liverworts await! A dream came true. ☘️☘️☘️ (I urgently need a bryophyte emoji!)

Rafael Medina@bryomedina.bsky.social · last yr.

📣🥳 Our project ApTaChil has been recommended for funding by @ageinves.bsky.social (PID2024-156818NB-I00) to tackle the systematics of Plagiochila sect. Plagiochila with Hyb-Seq, morphometrics & AI and explore its biomedical promise 🌿🧬🧪 #bryophytes #liverworts #systematics #biotech #ApTaChil #Botany

After a half-year break for health reasons, I'm thrilled to be back in the world of botany at the XXIV International Symposium of Cryptogamic Botany in Pontevedra, surrounded by such a vibrant and inspiring group of colleagues and friends. Cryptogamic botany is livelier than ever!

BildBildBild

Cannot emphasize enough that, if you dislike doing the things academics do (reading, writing, developing and expressing opinions about things you've read) enough to try to make a chatbot do them for you, there are lots of actual humans who would be happy to take that unpleasant job off your hands

Josh Shepperd@joshshepperd.bsky.social · last yr.

Got gossip from a managing editor pal of a journal that a few reviewers used ChatGPT to write their assessments for them, and didn't even conceal it. I'll say it again - it won't be the neoliberal administrators that take down the humanities. It'll be humanities professors who've stopped reading.

Me alegro de que se haya aprovechado la foto! Encontrar la especie fue divertido... 🤪 @davidgdelolmo.bsky.social @macacuerdo.bsky.social @davidhorcajada.bsky.social

Sociedad Botánica Española@sebot.bsky.social · last yr.

Continuamos la serie quincenal del #IICongresoBotánicaSEBOT con Cantabria. 𝐶𝑢𝑙𝑐𝑖𝑡𝑎 𝑚𝑎𝑐𝑟𝑜𝑐𝑎𝑟𝑝𝑎 es el único helecho del orden Cyatheales presente en Europa, en nuestro país en la cornisa cantábrica y Canarias. 📢 Disponible tercera circular: shorturl.at/slM64

Exactly a year ago, I collected Pilularia minuta to cultivate in my lab. I left it at the bottom of the culture chamber, and today, I discovered it had become fertile. Heterosporous ferns never fail to amaze me! 🌿

BildBild