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David Horcajada-Tejero

@davidhorcajada.bsky.social
570 followers 299 following 15 posts

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

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David Horcajada-Tejero @davidhorcajada.bsky.social · 01/08/2026
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!
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The Palaeontological Association @thepalass.bsky.social · 31/07/2026
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.
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Sociedad Botánica Española @sebot.bsky.social · 02/08/2025
🌱 Riccia lamellosa aparece como por arte de lluvia en los suelos desnudos de Madrid. Pequeña, efímera y muy especial. 📢 ¡Ya queda menos para el #SEBOT2025 ! No pierdas de vista nuestras redes para no perderte nada.
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Elisa Carrasco @ecarrascouam.bsky.social · 30/07/2025
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
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Rafael Medina @bryomedina.bsky.social · 30/07/2025
Co-led with @ecarrascouam.bsky.social and fueling the PhD of @davidhorcajada.bsky.social. Huge thanks to the reviewers for their constructive feedback and to all our collaborators worldwide. This is a shared win! 🙌
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Rafael Medina @bryomedina.bsky.social · 30/07/2025
📣🥳 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
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David Horcajada-Tejero @davidhorcajada.bsky.social · 30/07/2025
4 years of liverworts await! A dream came true. ☘️☘️☘️ (I urgently need a bryophyte emoji!)
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iNaturalist @inaturalist.bsky.social · 20/07/2025
The longer you look at moss, the more incredible it gets. Here's a closer look at Slender Cruet-moss (Tetraplodon mnioides). 📷 marceau_c on iNaturalist 📍 Austria 🔗: www.inaturalist.org/observations... #ObservationOfTheDay
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P. Aguado-Ramsay @paguado-ramsay.bsky.social · 16/07/2025
Last week we attended the XXIV International Symposium on Cryptogamic Botany in Pontevedra, Galicia. An amazing experience with 188 participants from 12 countries, 114 posters, and 82 talks. A real success! 🌿✨
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Sociedad Española de Briología @sebriologia.bsky.social · 11/07/2025
The XXIV INTERNACIONAL SYMPOSIUM OF CRYOTOGAMIC BOTANY is over. Such a wonderful event it has been! the Spanish Bryological Society wishes to thanks the organizers for their commitment. Congratulations for the amazing results @24iscb.bsky.social L
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Irene Lafuente López @botanicalafuente.bsky.social · 12/07/2025
Feeling grateful for having joined #ISCB2025 in Pontevedra, sharing our research on Breutelia chrysocoma, discovering the inspiring work of fellow cryptogamists, and reconnecting with the community. Events like this remind me why I chose science. @sebriologia.bsky.social @jovenesbotanica.bsky.social
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David Horcajada-Tejero @davidhorcajada.bsky.social · 12/07/2025
@24iscb.bsky.social @sebriologia.bsky.social @flaglab.bsky.social @jovenesbotanica.bsky.social
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David Horcajada-Tejero @davidhorcajada.bsky.social · 12/07/2025
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!
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David G. del Olmo @davidgdelolmo.bsky.social · 11/07/2025
Very thankful to have been part of #ISCB2025 in Pontevedra to share our work on #mosses, connect with colleagues, and enjoy cryptogams and the beautiful surroundings!💚 @24iscb.bsky.social @sebriologia.bsky.social @flaglab.bsky.social @jovenesbotanica.bsky.social @sebot.bsky.social
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Macarena Cuerdo @macacuerdo.bsky.social · 11/07/2025
What an amazing experience at the XXIV International Symposium of Cryptogamic Botany, with a great team helping bring more visibility to the Orthotrichaceae! 💚 #ISCB2025 #mosses
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Jeremy Yoder says no war @jbyoder.org · 01/07/2025
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
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RTVE Noticias @rtvenoticias.rtve.es · 17/05/2025
El mensaje de RTVE antes de Eurovisión: "Frente a los derechos humanos, el silencio no es una opción. Paz y justicia para Palestina" dozz.es/qr8ga1
dozz.es
El mensaje de RTVE antes de Eurovisión: "Frente a los derechos humanos, el silencio no es una opción. Paz y justicia para Palestina"
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El Salto @elsaltodiario.com · 16/05/2025
📋Más de 150.000 firmas en menos de 24 horas, pero aún no son suficientes. Si tienes amigas en Portugal, Italia, Grecia, Alemania... Envíales la iniciativa 👇 eci.ec.europa.eu/043/public/#...
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Sociedad Botánica Española @sebot.bsky.social · 07/04/2025
Este jueves tendremos una nueva charla del ciclo Cafés Sistemáticos ☕️🌿. Candela Blanco Moreno @candelabm.bsky.social @uam.es nos hablará de plantas fósiles: "Paleobotánica: la historia oculta de las plantas" 🗓️ Jueves, 10 de abril ⏲️ 11:00 (CET) 🔗 conectaha.csic.es/b/mar-dl5-qf... ¡Os esperamos!
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Macarena Cuerdo @macacuerdo.bsky.social · 03/04/2025
We are excited to share our new article on riparian alders in the Iberian Peninsula 🌳💚 We hope you find it interesting! ⚠️⚠️Trigger warning: Alder identification only for the bravest botanists authors.elsevier.com/c/1ks-31JWF2... doi.org/10.1016/j.fl...
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María Valerio de Arana @mvaleriodearana.bsky.social · 02/04/2025
Me alegro de que se haya aprovechado la foto! Encontrar la especie fue divertido... 🤪 @davidgdelolmo.bsky.social @macacuerdo.bsky.social @davidhorcajada.bsky.social
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Jóvenes por la Botánica Española @jovenesbotanica.bsky.social · 08/03/2025
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Jóvenes por la Botánica Española @jovenesbotanica.bsky.social · 08/03/2025
#DíadelaMujer #8M 💜
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XXIV International Symposium of Cryptogamic Botany @24iscb.bsky.social · 10/02/2025
📢 Meet the keynote speakers of the XXIV International Symposium on Cryptogamic Botany - Pontevedra 2025! Dr. Teresa Boquete, researcher at the Universidad Autónoma de Madrid (Spain), will be our speaker for the #bryology keynote session 📌 Mark your calendars for #ISCB2025!
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Miguel Martín @mimart99.bsky.social · 28/01/2025
pequeño recordatorio de que el 9 de febrero se vuelve a salir a la calle por una vivienda digna y sostenible! 🏡
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Journal of Systematics and Evolution @journalsysevo.bsky.social · 24/01/2025
Wu et al. use #phylogenomics to shed light on the complex evolutionary history of the #gymnosperm genus Cupressus, which shows East Asian–Tethyan disjunction. doi.org/10.1111/jse.... #PlantScience #evolution
This annotated world map, featuring clade diagrams and in situ morphological images, illustrates evolutionary history reconstructions of Cupressus L., based on 1991 single-copy nuclear genes and plastid genomes.
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María Valerio de Arana @mvaleriodearana.bsky.social · 06/12/2024
Check out how an ancient hybridisation event between sections of Helianthemum helped us explain widely disjunct distributions and puzzling phylogenetic incongruences! I'm grateful for having presented this work at the enriching V SEBOT Symposium ✨ @vsebot.bsky.social @sebot.bsky.social
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PhD. Marta Nieto-Lugilde @manilu.bsky.social · 04/12/2024
Poco se habla de la representación de la Sociedad Española de Briología (SEB) en el @vsebot.bsky.social de la @sebot.bsky.social :)
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Guillermo Santos @guillermo-santos.bsky.social · 04/12/2024
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! 🌿
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David Horcajada-Tejero @davidhorcajada.bsky.social · 03/12/2024
Green life in a drop of water (and a one-eyed, minute intruder). I just love how diverse green algae are shape-wise... and the rotifer is the cutest 💚
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🌴 Scott Zona, Ph.D. 🌴 @scottzona.bsky.social · 05/01/2024
A new family of #liverwort has been found in #Hawaii! This is not a taxonomic change to an existing species. This is based on new fieldwork & analyses of a previously unknown genus and species. Hello, Kahakuloaceae! #Marchantiophyta #Botany #PlantScience 🌾🧪 www.mapress.com/bde/article/...
mapress.com
Kahakuloa operculispora , a new Hawaiian simple thalloid liverwort in a new genus and family, K...
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Rafael Medina @bryomedina.bsky.social · 01/12/2024
/Quercus rotundifolia/ is an icon of the Iberian flora. Its sweetish acorns have shaped our ecosystems and cultures for millennia, feeding both, livestock and people. It's a cornerstone of Iberian natural and semi-natural landscapes
Branch with leaves and cupula of Quercus rotundifolia A basket full or acorns
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David Horcajada-Tejero @davidhorcajada.bsky.social · 01/12/2024
That's what I thought too! I think I can also see some Targionia (probably hypophylla) at the right part.
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David Horcajada-Tejero @davidhorcajada.bsky.social · 01/12/2024
Liverworts love growing intermingled, and this pic is the proof of it! We can see up to three different species sharing a tiny bit of soil. Can you find them? Fantastic day hiking in Sierra Nevada 🌿
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vsebot.bsky.social @vsebot.bsky.social · 30/11/2024
Seguimos con Teresa Boquete “La Biodiversidad Oculta de los Briófitos”.
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Aniol Clarà @aniol98.bsky.social · 25/11/2024
Hoy veremos algo diferente a los hilos que he estado haciendo. Hoy vamos a hacer una video reacción como si fuera un Youtuber de éxito. Aquí el vídeo 🧪:
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David Horcajada-Tejero @davidhorcajada.bsky.social · 27/11/2024
🥹🥹🥹tq
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Benjamin Lord @benjalord.bsky.social · 24/11/2024
The updated Orchid Tree of Life v.2.0 from #KewGardens is now available for download. 🌱🌴🪴🌺 🔗: figshare.com/s/241e1bd47d... "Disentangling the origin and evolution of the world's orchid diversity through DNA" #orchids #phylogeny #botany #genetics
Disentangling the origin and evolution of the world's orchid diversity through DNA. Poster for The Orchid Tree of Life v.2.0 by the Orchid Tree of Life project at Kew Gardens.
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Neil Shubin @neilshubin.bsky.social · 24/11/2024
Your reminder that many of the muscles, nerves and bones you use to hear and talk with correspond to gill structures in fish. 🧪 #evolution #paleontology
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Sebastian Schornack @dromius.bsky.social · 09/11/2024
Preprint: Liverworts reproduce in two ways: gemmae are clones, spores are from sex. Marchantia strikes a reproductive decision depending on a conducive environment. We found a switch from vegetative to sexual reproduction that can respond to environmental cues. www.biorxiv.org/content/10.1...
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David G. del Olmo @davidgdelolmo.bsky.social · 19/11/2024
Look at these cells full of chloroplasts in a photo I took under the microscope today! They belong to this beautiful moss of the genus Hypopterygium 💚✨ #bryophytes #botany #biodiveristy
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Alejandro López @alegeo.bsky.social · 18/11/2024
Buenas, soy el director de Descifrando la Guerra. Ya tenemos la cuenta en Bluesky. Os pediría un poco de difusión: @descifraguerra.bsky.social
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David Horcajada-Tejero @davidhorcajada.bsky.social · 18/11/2024
Happy #LGBTQStemDay! I feel so lucky to be part of a field as diverse as botany (both plants and botanists!) and to be celebrating a day like this with all of you! This platform brings a lot of joy and relief to my life. 🏳️‍🌈🌹🏵️🌻🪴🫐🍇
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Miquel Jover @miqueljover.bsky.social · 18/11/2024
Una estratègia dels #briòfits per a multiplicar-se ràpidament és la reproducció vegetativa per mitjà de gemmes o propàguls. En algunes espècies, aquestes gemmes es troben en conceptacles en forma de copa (a l'esquerra, #Marchantia paleacea) o de mitja lluna (a la dreta, Lunularia cruciata).
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Pride in STEM @prideinstem.bsky.social · 18/11/2024
November 18 is the International Day of LGBQTIA+ People in STEM! Today more than ever we want to stress the importance of communities, building connections, and raising each other up. Let's keep leaving our mark for the betterment of us all! 🏳️‍⚧️🏳️‍🌈 #QueerinSTEM prideinstem.org/lgbtstemday/
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Miquel Jover @miqueljover.bsky.social · 18/11/2024
Does anybody know a starter pack of bryologists or people interested in bryophytes?
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David Horcajada-Tejero @davidhorcajada.bsky.social · 18/11/2024
@drcarpineti.bsky.social I'd love to be added! :)
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David Horcajada-Tejero @davidhorcajada.bsky.social · 17/11/2024
Next to this beautiful waterfall, in Galicia, I met Dumortiera hirsuta for the first time. Two years later, it became the subject of my master's thesis. How many secrets it hid! Thanks to SEB for awakening the dormant bryologist in me! 💚
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