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Hoyaboya

@hoyaboya1.bsky.social
200 followers 413 following 621 posts

Interested in deep phylogeny and evolution of metazoans (fossil + extant) and phylogenetic methodology | Japanese 化石・現生問わず,後生動物(動物)の起源,初期の系統・進化史に強い興味を持っています.形態系統学や分子系統学の方法論にも関心があります. Posts/reposts ≠ endorsement unless stated X: x.com/Hoyaboya11

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Dr. Or M. Bialik |📚|🔬|🌊|⚒️ @obialik.bsky.social · 05/10/2026
The more we learn about early life and early animals, the more convinced I get that life could also evolve on other planets. New calibration just pushed initiation of earliest animals by almost 200 million years. 🧪⚒️ Link: www.science.org/doi/10.1126/sciadv.…
Ediacaran sea floor, Namibia, Southwest Africa - 543 million years ago. Credit: Museum of Natural History, University of Oxford / Mighty Fossils.
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Hoyaboya @hoyaboya1.bsky.social · 04/10/2026
Dookhy (2026-09 preprint, PaleorXiv) Historical inheritance and expansion of morphological character sampling in macronarian sauropod phylogenetics doi.org/10.31233/osf...
doi.org
OSF
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Hoyaboya @hoyaboya1.bsky.social · 04/10/2026
Dookhy (2026-09 preprint, PaleorXiv) Historical inheritance and expansion of morphological character sampling in macronarian sauropod phylogenetics doi.org/10.31233/osf...
doi.org
OSF
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Hoyaboya @hoyaboya1.bsky.social · 03/10/2026
Lole Durbin et al. (2026-10, Science Advances) 「分子時計の最大年代較正の再評価により,動物のエディアカラン紀より前の分岐年代推定が復活する」 Re-evaluating molecular clock maximum age calibrations revives pre-Ediacaran divergence estimates for animals doi.org/10.1126/scia... クオー!! 動物のクラウングループの起源年代がトニアン紀後期~クライオジェニアン紀中期(約8億~7億年前)にあることを支持!!
Orin M. Lole Durbin et al., CC BY 4.0, https://doi.org/10.1126/sciadv.aeg6289
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Hoyaboya @hoyaboya1.bsky.social · 03/10/2026
Zha et al. (2026-10, Precambrian Research) 「先カンブリア時代の円盤状化石が微生物起源であることの実験的証拠:菌類のコロニーの培養とタフォノミーからの知見」 Experimental evidence for the microbial origin of Precambrian discoidal fossils: insights from cultivation and taphonomy of fungal colonies doi.org/10.1016/j.pr...
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phy_papers @phypapers.bsky.social · 04/10/2026
Corallimorpharian genome supports the monophyly of Scleractinia and illuminates the cellular evolution of coral calcification www.biorxiv.org/content/10.64898/20…
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Hoyaboya @hoyaboya1.bsky.social · 02/10/2026
Heads et al. (2026-10, Biological Journal of the Linnean Society) Molecular clock ages of component groups in individual distribution patterns form surprisingly smooth curves: does vicariance never occur, or are the clock ages wrong? doi.org/10.1093/biol...
doi.org
Molecular clock ages of component groups in individual distribution patterns form surprisingly smooth curves: does vicariance never occur, or are the clock ages wrong?
Abstract. Molecular studies have dated many component clades in particular biogeographical patterns. Here we review age curves for clades in different patt
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Hoyaboya @hoyaboya1.bsky.social · 03/10/2026
Lole Durbin et al. (2026-10, Science Advances) 「分子時計の最大年代較正の再評価により,動物のエディアカラン紀より前の分岐年代推定が復活する」 Re-evaluating molecular clock maximum age calibrations revives pre-Ediacaran divergence estimates for animals doi.org/10.1126/scia... クオー!! 動物のクラウングループの起源年代がトニアン紀後期~クライオジェニアン紀中期(約8億~7億年前)にあることを支持!!
Orin M. Lole Durbin et al., CC BY 4.0, https://doi.org/10.1126/sciadv.aeg6289
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Hoyaboya @hoyaboya1.bsky.social · 03/10/2026
Zha et al. (2026-10, Precambrian Research) 「先カンブリア時代の円盤状化石が微生物起源であることの実験的証拠:菌類のコロニーの培養とタフォノミーからの知見」 Experimental evidence for the microbial origin of Precambrian discoidal fossils: insights from cultivation and taphonomy of fungal colonies doi.org/10.1016/j.pr...
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Keisuke Tajima @keisuke-tajima.bsky.social · 02/10/2026
学振、攻めてきたな~ 日本学術振興会×うんこドリルがコラボ 「うんこドリル 研究のすすめ」 www.jsps.go.jp/j-topics/202...
jsps.go.jp
日本学術振興会×うんこドリルがコラボ 「うんこドリル 研究のすすめ」を公開|2026年度|学振トピックス|日本学術振興会
日本学術振興会のページです。
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Hoyaboya @hoyaboya1.bsky.social · 02/10/2026
Heads et al. (2026-10, Biological Journal of the Linnean Society) Molecular clock ages of component groups in individual distribution patterns form surprisingly smooth curves: does vicariance never occur, or are the clock ages wrong? doi.org/10.1093/biol...
doi.org
Molecular clock ages of component groups in individual distribution patterns form surprisingly smooth curves: does vicariance never occur, or are the clock ages wrong?
Abstract. Molecular studies have dated many component clades in particular biogeographical patterns. Here we review age curves for clades in different patt
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Reposted by Hoyaboya
Hoyaboya @hoyaboya1.bsky.social · 01/10/2026
Pandolfi et al. (2026-09 preprint, PaleorXiv) How characters recoding, characters rescoring, and matrix combination weaken phylogenetic and taxonomic inference: the case of Scythicorhinus doi.org/10.31233/osf...
doi.org
OSF
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Duncan McIlroy @dmcediacaran.bsky.social · 02/10/2026
#FossilFriday this week is brought to you by the paratypes of #Edrathina from the #InnerMeadow lagerstätte. Both #Ediacaran aged fossils have fallen atop #rangeomorph fossils meaning part of the calyx of both was not impressed onto the seafloor. This kind of evidence suggests an upright life habit.
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phy_papers @phypapers.bsky.social · 02/10/2026
A novel phylogenetic comparative model reveals strong signals for early high disparity in ichthyosaurs www.biorxiv.org/content/10.64898/20…
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Geoff Read @annelidsci.bsky.social · 01/10/2026
Unusual for taxonomy. Retraction for fake citations. doi.org/10.11646/zoo...
Retraction notice because of fake citations from the taxonomy journal Zootaxa for a review article on Phylum Annelida by Hasan, Reynolds, et al
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Hoyaboya @hoyaboya1.bsky.social · 01/10/2026
Pandolfi et al. (2026-09 preprint, PaleorXiv) How characters recoding, characters rescoring, and matrix combination weaken phylogenetic and taxonomic inference: the case of Scythicorhinus doi.org/10.31233/osf...
doi.org
OSF
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Iñaki Ruiz-Trillo @multicellgenome.bsky.social · 28/09/2026
We have a new branch in the family tree of animals: Atreyea- a previously unrecognized lineage among the closest unicell relatives of animals. Led by @konsmitsi.bsky.social & @freejakoba.bsky.social together with a fantastic team of collaborators. 🔗 papers.ssrn.com/sol3/papers.... #protistsOnSky
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Hoyaboya @hoyaboya1.bsky.social · 27/09/2026
Dowding et al. (2026-09, Geological Society, London, Special Publications) 「空間の起源について:古生物地理学を捉える」 On the Origin of Spaces: framing Palaeobiogeography doi.org/10.1144/gsls...
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Hoyaboya @hoyaboya1.bsky.social · 27/09/2026
Beaulieu et al. (2026-09, Systematic Biology) 「初期に分岐した系統は,祖先に関する情報をほとんど提供しない」 Early-diverging lineages provide little information about ancestors doi.org/10.1093/sysb... クオーーーーーー!!!!
doi.org
Early-diverging lineages provide little information about ancestors
Abstract. Large phylogenetic trees are often unbalanced near the root, with a species-depauperate lineage sister to a far more species-rich clade. The spec
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Hoyaboya @hoyaboya1.bsky.social · 27/09/2026
Jiggins (2026-09, Evolution) (書評 book review) 「系統樹は死んだ,系統ネットワーク万歳」 The tree is dead, long live the network doi.org/10.1093/evol...
doi.org
The tree is dead, long live the network
Chris D Jiggins; The tree is dead, long live the network, Evolution, , qpag176, https://doi.org/10.1093/evolut/qpag176
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Hoyaboya @hoyaboya1.bsky.social · 27/09/2026
Dowding et al. (2026-09, Geological Society, London, Special Publications) 「空間の起源について:古生物地理学を捉える」 On the Origin of Spaces: framing Palaeobiogeography doi.org/10.1144/gsls...
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Hoyaboya @hoyaboya1.bsky.social · 27/09/2026
Beaulieu et al. (2026-09, Systematic Biology) 「初期に分岐した系統は,祖先に関する情報をほとんど提供しない」 Early-diverging lineages provide little information about ancestors doi.org/10.1093/sysb... クオーーーーーー!!!!
doi.org
Early-diverging lineages provide little information about ancestors
Abstract. Large phylogenetic trees are often unbalanced near the root, with a species-depauperate lineage sister to a far more species-rich clade. The spec
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Hoyaboya @hoyaboya1.bsky.social · 27/09/2026
Jiggins (2026-09, Evolution) (書評 book review) 「系統樹は死んだ,系統ネットワーク万歳」 The tree is dead, long live the network doi.org/10.1093/evol...
doi.org
The tree is dead, long live the network
Chris D Jiggins; The tree is dead, long live the network, Evolution, , qpag176, https://doi.org/10.1093/evolut/qpag176
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Joseph W. Brown @josephwb.bsky.social · 26/09/2026
Early-diverging lineages provide little information about ancestors academic.oup.com/sysbio/advan... From @phylieu.bsky.social @sinkingdiatom.bsky.social @omearabrian.bsky.social
academic.oup.com
Early-diverging lineages provide little information about ancestors
Abstract. Large phylogenetic trees are often unbalanced near the root, with a species-depauperate lineage sister to a far more species-rich clade. The spec
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Duncan McIlroy @dmcediacaran.bsky.social · 26/09/2026
We names the #Ediacaran #Edrathina obditchia from #InnerMeadow after we had decided it was a stem ctenophore. Ctenophores are also known as comb-jellies. Following recent convention we have used Beothuk words for naming. Edrathin means comb & Obditch means beast. So the name means “comb beast”
view looking into the triangular/collapsed cone  calyx of Edrathina  with the tentacles oriented towards you and the holdfast disc found at the top right.  the tentacles have numerous pinnules arising from them  and can be seen to arise from the margin of the calyx.
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
【巨星現る】 皆さん起きてください! エディアカラン紀(エディアカラ紀)のステム有櫛動物(クシクラゲ)の新属新種,Edrathina obditchiaが記載されました!! 系統解析では,カンブリア紀のステム有櫛動物Dinomischidae科の姉妹群として復元されています!!
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Muirhead-Hunt et al. (2026-09, Front. Ecol. Evol.) 「ニューファンドランド島のFermeuse Formationから産出した,エディアカラン紀のステム有櫛動物Edrathina obditchia」 Edrathina obditchia, an Ediacaran stem-group ctenophore from the Fermeuse Formation of Newfoundland doi.org/10.3389/fevo... [Edrathina obditchia gen. et sp. nov.] (新属新種)
Duncan McIlroy (Heléna Muirhead-Hunt et al.), CC BY 4.0, https://doi.org/10.3389/fevo.2026.1882499Heléna Muirhead-Hunt et al., CC BY 4.0, https://doi.org/10.3389/fevo.2026.1882499
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
[Calathites macrocalyx sp. nov., Theiokylixia cartwrightae gen. et sp. nov., Dinomischus nudus sp. nov.] (新種,新属新種,新種)
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Vinn et al. (2026-09, Palaeoworld) 「ラトビアの上部オルドビス系(ヒルナンシアン)から産出した,例外的に保存された鰓曳動物およびその他の『蠕虫』」 Exceptionally preserved priapulid and other “worms” from the Upper Ordovician (Hirnantian) of Latvia doi.org/10.1016/j.pa... [?Eximipriapulus vannieri sp. nov.] (新種)
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Huson et al. (2026-09 preprint, bioRxiv) Phylogenetic parallelograms: visual comparison of discordant phylogenetic trees doi.org/10.64898/202...
Daniel H. Huson et al., CC BY 4.0, https://doi.org/10.64898/2026.09.18.752558
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Shi et al. (2026-09, Integrative Zoology) The First Quantitative Evidence of Ontogenetic Growth in the Early Cambrian Ecdysozoan Worm Cricocosmia jinningensis Reveals the Earliest Energy Reallocation
doi.org
The First Quantitative Evidence of Ontogenetic Growth in the Early Cambrian Ecdysozoan Worm <i>Cricocosmia jinningensis</i> Reveals the Earliest Energy Reallocation
We report the first ontogenetic information for the compression-preserved Cambrian ecdysozoan worm Cricocosmia jinningensis. Its mosaic growth strategy unifies panarthropod and priapulid developmenta....
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Kufner (2026-09, PeerJ) Specimen-level phylogenetic analysis and taxonomic revision of North American metoposaurids: a case for monospecific genera in vertebrate paleontology doi.org/10.7717/peer...
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
系統解析あります!! Includes phylogenetic analyses!!
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
[Avannaascolex apalos gen. et sp. nov.] (新属新種)
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Farrell et al. (2026-09, Acta Palaeontologica Polonica) 「北グリーンランドのカンブリア紀ステージ3シリウス・パセットラーガーシュテッテから産出した,特異な新たなpalaeoscolecidomorphの蠕虫」 An unusual new palaeoscolecidomorph worm from the Cambrian Stage 3 Sirius Passet Lagerstätte in North Greenland www.app.pan.pl/article/item...
Thomas P. Farrell et al., CC BY 4.0, https://www.app.pan.pl/article/item/app013872026.html
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
【巨星現る】 皆さん起きてください! エディアカラン紀(エディアカラ紀)のステム有櫛動物(クシクラゲ)の新属新種,Edrathina obditchiaが記載されました!! 系統解析では,カンブリア紀のステム有櫛動物Dinomischidae科の姉妹群として復元されています!!
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Muirhead-Hunt et al. (2026-09, Front. Ecol. Evol.) 「ニューファンドランド島のFermeuse Formationから産出した,エディアカラン紀のステム有櫛動物Edrathina obditchia」 Edrathina obditchia, an Ediacaran stem-group ctenophore from the Fermeuse Formation of Newfoundland doi.org/10.3389/fevo... [Edrathina obditchia gen. et sp. nov.] (新属新種)
Duncan McIlroy (Heléna Muirhead-Hunt et al.), CC BY 4.0, https://doi.org/10.3389/fevo.2026.1882499Heléna Muirhead-Hunt et al., CC BY 4.0, https://doi.org/10.3389/fevo.2026.1882499
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
>RT ついに来たか...
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Duncan McIlroy @dmcediacaran.bsky.social · 25/09/2026
or if the Frontiers link is not updated yet then try here www.researchgate.net/publication/...
researchgate.net
(PDF) Edrathina obditchia, an Ediacaran stem-group ctenophore from the Fermeuse Formation of Newfoundland
PDF | The Ediacaran fossil Edrathina obditchia gen. et sp. nov., is considered herein to be a large soft bodied metazoan with a bauplan that conforms... | Find, read and cite all the research you need...
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Duncan McIlroy @dmcediacaran.bsky.social · 25/09/2026
you can get the open access papers here: www.frontiersin.org/journals/eco... doi.org/10.1098/rspb... And a heres a really great paper on the stem ctenophores here: www.sciencedirect.com/science/arti... if you want to know more about the early history of the Ctenophora
illustration and photographs of the Stem-Ctenopore from Zhao et al. 2019  this is Dinomischus which is considered a close relative of Edrathina in our phylogenetic analyses
Do take a look at Zhao it’s a great paper
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Duncan McIlroy @dmcediacaran.bsky.social · 25/09/2026
One of the best bits of being a palaeobiologist is attempting to visualize our weird and wonderful creatures so here is a digital painting of my post-mortem reconstruction of #Edrathina next to the 🐡 #Haootia reconstruction of @bobnichollsart.bsky.social if you want to read about them free then…
Artistic impression of a collapsed Ediacaran Edrathina showing iridescent collapsed conical calyx and numerous pinnate tentacles.  lying on a patchy white microbial mat. lit by imagined diving light.  (c) duncan mcilroyReconstruction of seafloor with Haootia (c) BobNicholls tetraradial haootia responding to a current surrounded by microbial matground Imagined artificial light with passing marine snow (white streaks)Artist reconstruction of Edrathina obditchia (c) duncan mcilroy imagined lighting from artificial dove light calyx conical with six tentacles with pinnae.  cranes are inferred to have bee on the inner surface of the pinnae.
Compare with the ancient benthic stem-ctenophores of the Cambrian
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Duncan McIlroy @dmcediacaran.bsky.social · 25/09/2026
Happy #FossilFriday! The Ediacaran of #Newfoundland is famous for its animal fossils. The most iconic are the muscular #Staurozoa #Haootia and #Mamsetia and I think our new 551Ma #Edrathina is probably comparably important , being the oldest relative of comb-jellies, another early animal group.
retrodeformed holotype of Edrathina see strain ellipse branches arise from margin of a calyx which is triangular in shape
interpreted as being a relative of the Ctenophores, the similarly shaped stem-ctenophores like Siphosauctum and Dinomischus Holotype of Haootia quadriformis linesr features are interpreted as muscle fibres.  It has been interpreted as a crown group Cnidarian comparable to the modern Staurozoa
note the tetra-radial form characteristic of that group
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
鰓曳動物様化石脱皮動物の論文がここ数日大量に出てますね
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
[Calathites macrocalyx sp. nov., Theiokylixia cartwrightae gen. et sp. nov., Dinomischus nudus sp. nov.] (新種,新属新種,新種)
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Vinn et al. (2026-09, Palaeoworld) 「ラトビアの上部オルドビス系(ヒルナンシアン)から産出した,例外的に保存された鰓曳動物およびその他の『蠕虫』」 Exceptionally preserved priapulid and other “worms” from the Upper Ordovician (Hirnantian) of Latvia doi.org/10.1016/j.pa... [?Eximipriapulus vannieri sp. nov.] (新種)
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Huson et al. (2026-09 preprint, bioRxiv) Phylogenetic parallelograms: visual comparison of discordant phylogenetic trees doi.org/10.64898/202...
Daniel H. Huson et al., CC BY 4.0, https://doi.org/10.64898/2026.09.18.752558
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Shi et al. (2026-09, Integrative Zoology) The First Quantitative Evidence of Ontogenetic Growth in the Early Cambrian Ecdysozoan Worm Cricocosmia jinningensis Reveals the Earliest Energy Reallocation
doi.org
The First Quantitative Evidence of Ontogenetic Growth in the Early Cambrian Ecdysozoan Worm <i>Cricocosmia jinningensis</i> Reveals the Earliest Energy Reallocation
We report the first ontogenetic information for the compression-preserved Cambrian ecdysozoan worm Cricocosmia jinningensis. Its mosaic growth strategy unifies panarthropod and priapulid developmenta....
054
Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
Kufner (2026-09, PeerJ) Specimen-level phylogenetic analysis and taxonomic revision of North American metoposaurids: a case for monospecific genera in vertebrate paleontology doi.org/10.7717/peer...
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
系統解析あります!! Includes phylogenetic analyses!!
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Hoyaboya @hoyaboya1.bsky.social · 25/09/2026
[Avannaascolex apalos gen. et sp. nov.] (新属新種)
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