冠龍
guanlong-wucaii.bsky.social
冠龍
@guanlong-wucaii.bsky.social
自然科学、特に古生物学ネタを中心に交流したいです。

■Twitter(現X)・冠龍(@Guanlong_wucaii)
■古生物系note ・冠龍 ( https://note.com/guanlong_2006 )
Pinned
#古生物創作合同展示会開催
#第13回古生物創作合同展示会開催

計8名の多芸多才なクリエイターが集結

知る人ぞ知る古生物の祭典です。

皆さま奮ってご参加ください(・∀・)9

【開催日時】 8月15日 / 12:00~16:00
【開催場所】 東京都, ROOMs八丁堀店(903号室)
【主催】 山本聖士&らえらぷす
x.com/yamamotoyama...
"Comparison of Thermoregulation of Four Ornithischian Dinosaurs and a Varanid Lizard from the Cretaceous Two Medicine Formation: Evidence from Oxygen Isotopes"
(Reese E. Barrick, et al. 1996)

後期白亜紀の北米(ツーメディスン層)の鳥盤目4属(鳥脚類や角竜など)と有鱗目オオトカゲの体温の比較
www.jstor.org/stable/3515240
Client Challenge
www.jstor.org
September 21, 2026 at 11:40 AM
"Unique internal anatomy of vertebrae as a key factor for neck elongation in Triassic archosauromorphs"
(Adam Rytel, et al. 2024)

三畳紀の主竜形類(タニサウルス類, Tanysauria)の極端に長い頸椎
※海棲爬虫類タニストロフェウスの頸椎と比較(相違点アリ)
academic.oup.com/zoolinnean/a...
September 21, 2026 at 10:49 AM
"Strontium isotope perturbation during the late Norian warming event (Late Triassic): evidence from the Baoshan Block, eastern Tethys"
(Bao Guo, et al. 2026)

後期三畳紀(ノーリアン期)の気候変動
www.sciencedirect.com/science/arti...
www.sciencedirect.com
September 21, 2026 at 10:46 AM
"How femoral morphology informs our understanding of the evolution of ornithopod locomotion and body size"
(Romain Pintore, et al. 2025)

大腿骨の形態を用いた鳥脚類の移動様式と体サイズの進化への推察
onlinelibrary.wiley.com/doi/full/10....
September 18, 2026 at 11:51 AM
"Craniomandibular osteology of Dinodontosaurus isiyavamanda sp. nov. (Therapsida: Anomodontia) from the Manda Beds of Tanzania and new support for a younger age for the alleged oldest dinosaurs"
(Hady George, et al. 2026)

三畳紀のアフリカ産の異歯類(ディノドントサウルス)
※マンダ層の年代はカーニアン
www.tandfonline.com/doi/full/10....
September 17, 2026 at 1:34 PM
"Review of the Pelycosauria"
(A. S. Romer & L. W. Price, 1940)

盤竜類(原始的な非哺乳類型単弓類)のレビュー論文
pubs.geoscienceworld.org/gsa/books/bo...
September 17, 2026 at 1:23 PM
"Assessing predator–prey interactions during the Late Triassic of India from bite marks on Hyperodapedon (Archosauromorpha, Rhynchosauria)"
(Urmi Chakraborty, et al. 2024)

後期三畳紀のインドの脊椎動物間の捕食-被食関係
www.tandfonline.com/doi/full/10....
September 17, 2026 at 1:00 PM
"Triassic non-marine vertebrate diversity of India: status report (2020–2024)"
(Sanghamitra Ray, et al. 2024)

三畳紀のインドの非海棲脊椎動物の多様性
link.springer.com/article/10.1...
September 17, 2026 at 12:34 PM
"Mesozoic Sea Dragons"
Triassic Marine Life from the Ancient Tropical Lagoon of Monte San Giorgio
(Olivier Rieppel)

三畳紀の海棲爬虫類たち
(欧州の熱帯性ラグーン環境、モンテ・サン・ジョルジョ)
iupress.org/978025304011...
September 12, 2026 at 7:34 AM
科学雑誌:"The Anatomical Record: Volume 309, Issue 10" (2026)

古生物(特に恐竜)の知能、認知能力の推定について
・"T. rex cognition was T. rex-like…"(2025)
・"Endothermy, neuron counts, and other issues…"(2025)
anatomypubs.onlinelibrary.wiley.com/toc/19328494...
September 11, 2026 at 10:39 AM
"Isochirotherium trackways, their possible trackmakers (?Arizonasaurus): intercontinental giant archosaur migrations in the Middle Triassic tsunami-influenced carbonate intertidal mud flats of the European Germanic Basin"
(Cajus G. Diedrich, et al. 2015)

www.researchgate.net/publication/...
September 10, 2026 at 2:34 AM
"Early giant reveals faster evolution of large body size in ichthyosaurs than in cetaceans"
(P. Martin Sander, et al. 2021)

魚竜類の巨大化は、鯨類の大型化よりもペースが速い
www.researchgate.net/publication/...
September 10, 2026 at 2:29 AM
"Body reconstruction and size estimation of plesiosaurs"
(Ruizhe Jackevan Zhao, 2024)

首長竜(プレシオサウルス類)の体型復元と体長推定
www.biorxiv.org/content/10.1...
September 10, 2026 at 2:26 AM
"Reassessment of body temperature and thermoregulation strategies in Mesozoic marine reptiles"
(Nicolas Séon, et al. 2025)

中生代海洋爬虫類の体温および体温調節戦略の再評価
www.cambridge.org/core/journal...
September 9, 2026 at 4:22 PM
"Pre- versus post-mass extinction divergence of Mesozoic marine reptiles dictated by time-scale dependence of evolutionary rates"
(藻谷亮介, et al. 2017)

大量絶滅前後の海棲爬虫類(魚竜の仲間)の進化
www.semanticscholar.org/paper/Pre-ve...
September 9, 2026 at 4:18 PM
"The rise of the ruling reptiles and ecosystem recovery from the Permo-Triassic mass extinction"
(M. Ezcurra, R. Butler, 2018)

ペルム紀-三畳紀の大量絶滅と、その後の爬虫類の回復
www.semanticscholar.org/paper/The-ri...
September 9, 2026 at 4:15 PM
"Dental and Dietary Disparity Among Marine Vertebrates from the Early Triassic (Spathian) of Svalbard – Life Bites the Dust, or A New Hope?"
(Thomas Holm Scharling, et al. 2025)

前期三畳紀(スパシアン期)のスバールバル諸島の海洋生態系
※同地の海棲脊椎動物を、少なくとも5つの異なる摂食ギルドに識別
njg.geologi.no/publications...
September 9, 2026 at 4:12 PM
"Resetting the evolution of marine reptiles at the Triassic-Jurassic boundary"
(Philippa M. Thorne, et al. 2011)

海棲爬虫類の進化と大量絶滅の関係
※三畳紀-ジュラ紀の大量絶滅(T-J絶滅イベント)の影響とは?
※魚竜は絶滅事変により、多様性にボトルネックがかかった
www.pnas.org/doi/10.1073/...
September 9, 2026 at 6:23 AM
"Amphibian Evolution - The Life of Early Land Vertebrates"
(Rainer R. Schoch, et al. 2014)

両生類の進化:上陸、多様化、現生の仲間(平滑両生類)まで
www.academia.edu/26483950/Amp...
September 9, 2026 at 4:37 AM
"Craniodental and humeral morphology of a new species of Masrasector (Teratodontinae, Hyaenodonta, Placentalia) from the late Eocene of Egypt and locomotor diversity in hyaenodonts"
(Matthew R. Borths, et al. 2017)

肉歯類ヒエノドン類(Masrasector nananubis)
(標本番号:DPC 12157)
journals.plos.org/plosone/arti...
September 6, 2026 at 2:34 PM
Reposted by 冠龍
カンバセーション
科学者たちが考えていたように、初期の哺乳類はすべて単独行動をしていたわけではなく、恐竜と同時期にすでにペアで生活していたものもいた

26種の胎盤哺乳類の包括的なデータセットと、種内変異を考慮したベイズ系統解析フレームワークを用いて、祖先の胎盤哺乳類は単独生活を送っていただけでなく、約26種がペア生活を送っていたことを明らかに

論文 www.pnas.org/doi/10.1073/...
theconversation.com/early-mammal...
Pair living emerged early in placental mammals | PNAS
It is widely assumed that the first placental mammals were solitary. Here, we tested this assumption and which ecological and life history factors ...
www.pnas.org
September 4, 2026 at 3:56 AM
"Insights on the oldest terror bird (Aves, Phorusrhacidae) from the Eocene of Argentina"
(C. Acosta Hospitaleche, et al. 2024)

始新世の南米に生息した最古の恐鳥類(フォルスラコス類)
www.tandfonline.com/doi/full/10....
September 3, 2026 at 1:13 AM
"Late Mississippian vertebrate palaeoecology and taphonomy, Buffalo Wallow Formation, western Kentucky, USA"
(Stephen F. Greb, et al. 2015)

石炭紀(ミシシッピ期)の北米の脊椎動物と生態系など
www.scup.com/doi/10.1111/...
September 3, 2026 at 1:11 AM
"TAKING COUNT: A Census of Dinosaur Fossils
Recovered From the Hell Creek and Lance
Formations (Maastrichtian)"
(Walter W. Stein, et al. 2019)

白亜紀末期の北米西部ララミディアの恐竜たち
※ヘルクリーク層&ランス層は、400kg以下の小動物の化石が保存されにくい?
www.researchgate.net/publication/...
September 2, 2026 at 1:58 PM