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Sidney Davies

@sidney-davies.bsky.social
55 followers 58 following 4 posts

PhD student in molecular evolution / phylogenetics / palaeobiology @ University of Bristol. Interested in providing a timescale for the tree of life to elucidate major evolutionary innovations in Earth history. 🧬

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Reposted by Sidney Davies
Michalis Averof @michalis-averof.bsky.social · 04/02/2026
Just discovered the wonderful covers of 'Genes to Cells', the journal of the Molecular Biology Society of Japan @mbsj-official.bsky.social – absolutely beautiful! here some examples inspired by mitosis, CRISPR, the DNA helix, and plant pigments
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Sidney Davies @sidney-davies.bsky.social · 07/10/2026
Our new paper is out! We find that different molecular clock methods recover distinct evolutionary timescales. royalsocietypublishing.org/rspb/article...
royalsocietypublishing.org
Competing methods of divergence time estimation recover diverse evolutionary timescales
Abstract. Molecular clocks convert evolutionary distances into geological times to infer time-scaled phylogenies. Methods differ in terms of fossil calibra
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Reposted by Sidney Davies
Sandra Álvarez @sabifo4.bsky.social · 08/09/2026
Keen on learning how to use Bayesian model selection to test different hypotheses of diversification? 🦴🧬🕰️ Check our latest work in Molecular Biology and Evolution! academic.oup.com/mbe/article/... With @zihengyang.bsky.social, @phil-donoghue.bsky.social, and @mariodosreis.bsky.social 💫 (1/2)
academic.oup.com
On the origin of animals and placental mammals: a critique of literalist readings of the fossil record
Abstract. The fossil record is incomplete, as evidenced by the pervasive presence of ghost lineages throughout the Tree of Life. For example, across placen
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Reposted by Sidney Davies
Andrew Roger @andrewjroger.bsky.social · 19/06/2026
1/ Deep-time phylogenetics is hard: overly simplistic substitution models can mislead tree estimation at the billion year timescale. Our new preprint introduces GTRspmix, a protein modeling framework designed to more realistically model site-to-site heterogeneity in amino acid replacement. 🧵
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Reposted by Sidney Davies
Ruolin WU @ruolinwu.bsky.social · 11/06/2026
The broader implication extends beyond flowering plants. Many famous "rocks vs. clocks" debates may not require choosing sides. The challenge is finding better ways to let fossils and molecules speak to each other. Link to our latest: www.nature.com/articles/s41...
nature.com
Integrated analysis of fossils and molecular divergence time estimates a latest Jurassic origin of angiosperms - Nature Plants
Using extensive fossil occurrence data and Bayesian Brownian Bridge modelling, this study derives data-driven calibration densities for molecular clocks and suggests a Late Jurassic origin of flowerin...
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Reposted by Sidney Davies
Laura Mulvey @lauramulvey.bsky.social · 23/04/2026
🪸🦕 📈 🪨 Excited to announce our upcoming workshop: Bridging Stratigraphic Palaeobiology & Phylogenetics, with Emilia Jarochowska, @niklashohmann.bsky.social, @rachelwarnock.bsky.social, and Johan Hidding 📍 Lorentz Centre, Leiden 📅 28 Sep – 2 Oct 2026 Applications open - details below 👇
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