Curr Biol February 2021 PMID 33472049

A cloacal opening in a non-avian dinosaur.

Jakob Vinther, Robert Nicholls, Diane A Kelly

Mentions

192
Peak: 58 in Jan 2021
across 5 sources since Dec 2020

Extended reach

383,624
potential audience

Total likes

10,523

Video views

111,876

Mentions per month

Dec 2020 – Oct 2025

Where it's discussed

  • News102 articles
  • X / Twitter66 posts
  • Blogs18 articles
  • YouTube3 videos
  • Facebook3 posts

AI synopsis

What people are saying

Several discussions highlight the significance of the newly described cloacal anatomy, with users referencing specific phrases from the article, such as 'the swiss army knife of holes,' which illustrates both humor and engagement. Posts expressing excitement about the potential for understanding dinosaur behavior and physiology, along with remarks about the paper's detailed analysis, contribute to an overall positive and intellectually stimulating tone.

AgreementModerate agreement

Overall, there is a general consensus supporting the research, with users expressing fascination with the findings.

InterestHigh interest

The discussions indicate a high level of curiosity, with many users eager to learn more about the specific findings.

EngagementHigh engagement

Many posts delve into the details of the research, highlighting its complex methods and results, showing a willingness to engage deeply.

ImpactHigh impact

Users perceive the research as having notable implications for paleontology and the understanding of dinosaur biology.

Abstract in brief

  • A specimen of Psittacosaurus from the Early Cretaceous exhibits excellent preservation of skin and coloration, allowing for detailed reconstruction.
  • The cloacal area was previously misrepresented, but new findings show that its anatomy is well-preserved and can be accurately modeled in 3D.
  • Although the cloacal anatomy doesn’t provide insights into the dinosaur's ecology or sex, it indicates potential functions in visual and olfactory signaling.

Top posts

Most liked on X and Bluesky
中島保寿(古生物学者)
@japanfossil · X

恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 107 likes · 43 shares · 17,623 followers View post →
加藤ひろし / 恐竜のお兄さん
@Hiro_DinoPaleo · X

#ヒロくん論文紹介 1月19日にオンラインで発表された、 プシッタコサウルスの総排泄孔についての研究 https://t.co/KeInDwftpM (Vinther et al. 2021) の研究標本となった個体(SMF R 4970)は、プシッタコサウルスの「カモフラージュ」研究等でも、研究対象となっています。 https://t.co/C6hy4gSZkX

Jan 19, 2021 · 11 likes · 4 shares · 4,930 followers View post →
Tito Mora Núñez
@Titomoranunez · X

Primera descripción de la cloaca de un dinosaurio (la abertura en la que convergen el conducto urinario, reproductivo e intestinal). Gracias a la conservación excepcional de los restos. Aquí el artículo completo: https://t.co/EGeXCdWk9o

Jan 19, 2021 · 9 likes · 828 followers View post →
Corey S. Powell
@coreyspowell · X

Here's the scientific account of "A cloacal opening in a non-avian dinosaur," complete with details on a embedded coprolite (fossil feces) and a taxonomy of tetrapod butts. https://t.co/isxduEpieb https://t.co/ieSngNUhjd

Jan 21, 2021 · 7 likes · 4 shares · 81,790 followers View post →
Pasha van Bijlert
@PashavanBijlert · X

Last year, Vinther et al. described the soft-tissue structures near the tail-base, and interpreted them as the cloacal opening! This is the figure from their paper (https://t.co/s55DBYnliy) https://t.co/j8gb8C6Wk2

Nov 4, 2022 · 6 likes · 1,230 followers View post →
EUREKA!
@Eurekapod · X

ASSHOLE NEWS #1 Excitingly a team from the University of Bristol have filed a paper entitled 'A cloacal opening in a non-avian dinosaur'. What does that mean? They've described and ANALysed (thank you) a dinosaur's asshole in detail! Finally. https://t.co/nURHy4ECoP

Jan 25, 2021 · 5 likes · 1 share · 1,975 followers View post →

All mentions

Revisiting the Cloacal Anatomy of Psittacosaurus

A specimen of Psittacosaurus from the Early Cretaceous exhibits excellent preservation of its anatomy. New findings reveal the cloacal area can be accurately modeled in 3D, indicating potential functions in visual and…

chalessart · Oct 9, 2025 104,295 views
るりはみ
@rurihammi · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Nov 24, 2024 · 43 shares · 37 followers View post →
Pasha van Bijlert
@PashavanBijlert · X

Last year, Vinther et al. described the soft-tissue structures near the tail-base, and interpreted them as the cloacal opening! This is the figure from their paper (https://t.co/s55DBYnliy) https://t.co/j8gb8C6Wk2

Nov 4, 2022 · 6 likes · 1,230 followers View post →
LibKey
@libkey_io · X

@jfmclaughlin92 Help your colleagues avoid a paywall by accessing the article from their libraries: https://t.co/4LxHIKZ87t Simply add https://t.co/SXSePSX5De to the DOI URL when sharing articles on Twitter and everywhere else!

Feb 2, 2022 · 555 followers View post →
CRCpaleos
@CRCpaleos · X

ARTÍCULO ORIGINAL (resumen) A cloacal opening in a non-avian dinosaur https://t.co/g7OIXn2O9f via #CurrentBiology https://t.co/0eM67ZG79V

Nov 25, 2021 · 3,140 followers View post →
ざっしぃ@実況用
@ZOrealcondition · X

RT @NikkeiScience: 本の論文はこちらから https://t.co/ekqbzEtM64 #子ども科学電話相談 #大人のための補講

May 1, 2021 · 1 share · 92 followers View post →
日経サイエンス
@NikkeiScience · X

本の論文はこちらから https://t.co/ekqbzEtM64 #子ども科学電話相談 #大人のための補講

May 1, 2021 · 2 likes · 1 share · 70,924 followers View post →
AnonRere
@AnonRere · X

A cloacal opening in a non-avian dinosaur https://t.co/Bf8Yu9Y5R6 #biology #cell

Mar 3, 2021 · 2,218 followers View post →
もきち
@doro2toketade · X

RT @hirolichyi10: #ヒロくん論文紹介 1月19日にオンラインで発表された、 プシッタコサウルスの総排泄孔についての研究 https://t.co/KeInDwftpM (Vinther et al. 2021) の研究標本となった個体(SMF R 4970)…

Jan 26, 2021 · 4 shares · 46 followers View post →
EUREKA!
@Eurekapod · X

ASSHOLE NEWS #1 Excitingly a team from the University of Bristol have filed a paper entitled 'A cloacal opening in a non-avian dinosaur'. What does that mean? They've described and ANALysed (thank you) a dinosaur's asshole in detail! Finally. https://t.co/nURHy4ECoP

Jan 25, 2021 · 5 likes · 1 share · 1,975 followers View post →
Himender Bharti
@adubharti · X

RT @Jente_O: A cloacal opening in a non-avian dinosaur | Current Biology https://t.co/Izt3kZs9hz

Jan 22, 2021 · 1 share · 1,325 followers View post →
Jente Ottenburghs | Avian Hybrids
@Jente_O · X

A cloacal opening in a non-avian dinosaur | Current Biology https://t.co/Izt3kZs9hz

Jan 22, 2021 · 1 share · 4,045 followers View post →
Vincent Cheng
@vjcheng · X

A cloacal opening in a non-avian dinosaur https://t.co/WP85vB65wW “... this dinosaur used its hole for everything...” again a sentence I didn’t expect in 2021. Note to self, work that line into my next manuscript.

Jan 22, 2021 · 692 followers View post →
Aiolos.Young
@Aiolos_Young · X

RT @coreyspowell: Here's the scientific account of "A cloacal opening in a non-avian dinosaur," complete with details on a embedded coproli…

Jan 21, 2021 · 4 shares · 30 followers View post →
Pauline
@LumenNaturae · X

RT @coreyspowell: Here's the scientific account of "A cloacal opening in a non-avian dinosaur," complete with details on a embedded coproli…

Jan 21, 2021 · 4 shares · 1,039 followers View post →
Laintal Sibornal
@Laintal · X

RT @coreyspowell: Here's the scientific account of "A cloacal opening in a non-avian dinosaur," complete with details on a embedded coproli…

Jan 21, 2021 · 4 shares · 64 followers View post →
T. Marshall Eubanks
@TM_Eubanks · X

RT @coreyspowell: Here's the scientific account of "A cloacal opening in a non-avian dinosaur," complete with details on a embedded coproli…

Jan 21, 2021 · 4 shares · 3,466 followers View post →
Corey S. Powell
@coreyspowell · X

Here's the scientific account of "A cloacal opening in a non-avian dinosaur," complete with details on a embedded coprolite (fossil feces) and a taxonomy of tetrapod butts. https://t.co/isxduEpieb https://t.co/ieSngNUhjd

Jan 21, 2021 · 7 likes · 4 shares · 81,790 followers View post →
らら@skeb受付中
@urekemo · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 6,152 followers View post →
星を飲んだ菓子屋
@hosiwononda · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 619 followers View post →
Sam Gerrits
@samgerrits · X

Maar serieus dus, het artikel verscheen gisteren in Cell. Het is een cloaca, het "zwitserse zakmes van de kontgaten". https://t.co/H0aDWiDPIO

Jan 20, 2021 · 4 likes · 14,491 followers View post →
@
@aishiba · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 533 followers View post →
ケルビン
@yamanonora · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 315 followers View post →
とよけらとぷす
@rex_toyo · X

RT @hirolichyi10: #ヒロくん論文紹介 1月19日にオンラインで発表された、 プシッタコサウルスの総排泄孔についての研究 https://t.co/KeInDwftpM (Vinther et al. 2021) の研究標本となった個体(SMF R 4970)…

Jan 20, 2021 · 4 shares · 2,152 followers View post →
どぶりあ
@dobrevipo · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 1,628 followers View post →
ビクーピー
@B47197246 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 1,899 followers View post →
ジオ残党@理科
@grainglasses · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 204 followers View post →
8号機
@footballmorpho · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 741 followers View post →
セラタ
@Yiliangellina · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 20, 2021 · 43 shares · 42 followers View post →
YkHVW5uHHkTn69V
@YkHVW5uHHkTn69V · X

https://t.co/q5jugwrGQX

Jan 20, 2021 · 1 like · 54 followers View post →
吉本 稔@ひすとり屋
@sin_yoshimoto · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 318 followers View post →
MMjirou77
@MMjirou77 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 300 followers View post →
ʕ•̫͡•あふひ 
@aoishj · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 141 followers View post →
御牧左京
@mimaki_sakyo · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 337 followers View post →
マガ桜トム猫
@sakuratomcat · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 159 followers View post →
恐竜好き82太郎
@Y82da · X

RT @hirolichyi10: #ヒロくん論文紹介 1月19日にオンラインで発表された、 プシッタコサウルスの総排泄孔についての研究 https://t.co/KeInDwftpM (Vinther et al. 2021) の研究標本となった個体(SMF R 4970)…

Jan 19, 2021 · 4 shares · 996 followers View post →
たぁちょん
@okirakgokurak · X

RT @hirolichyi10: #ヒロくん論文紹介 1月19日にオンラインで発表された、 プシッタコサウルスの総排泄孔についての研究 https://t.co/KeInDwftpM (Vinther et al. 2021) の研究標本となった個体(SMF R 4970)…

Jan 19, 2021 · 4 shares · 379 followers View post →
加藤ひろし / 恐竜のお兄さん
@Hiro_DinoPaleo · X

#ヒロくん論文紹介 1月19日にオンラインで発表された、 プシッタコサウルスの総排泄孔についての研究 https://t.co/KeInDwftpM (Vinther et al. 2021) の研究標本となった個体(SMF R 4970)は、プシッタコサウルスの「カモフラージュ」研究等でも、研究対象となっています。 https://t.co/C6hy4gSZkX

Jan 19, 2021 · 11 likes · 4 shares · 4,930 followers View post →
高光暎
@AkiraTakahikaru · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 249 followers View post →
さとし工房
@STS17358395 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 1,831 followers View post →
Tito Mora Núñez
@Titomoranunez · X

Primera descripción de la cloaca de un dinosaurio (la abertura en la que convergen el conducto urinario, reproductivo e intestinal). Gracias a la conservación excepcional de los restos. Aquí el artículo completo: https://t.co/EGeXCdWk9o

Jan 19, 2021 · 9 likes · 828 followers View post →
FISH
@FISH18324532 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 296 followers View post →
ガイス
@shitake_reverse · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 3,459 followers View post →
Toru Miyamoto
@toooochan0514 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 3,735 followers View post →
加藤ひろし / 恐竜のお兄さん
@Hiro_DinoPaleo · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 4,930 followers View post →
d_i_s
@disk_1981 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 828 followers View post →
虹色林檎脳炎
@NijiiroLingo · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 402 followers View post →
松蛇堂
@Matsuhebi · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 1,356 followers View post →
清水紙魚子/Shimizu Shimiko
@shimizushimiko · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 904 followers View post →
アリクイパーリ語
@psy_theanteater · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 130 followers View post →
福福
@fukufuku_FE · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 241 followers View post →
uoichiba
@uoichiba1027 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 2,055 followers View post →
ドリベンタス
@dreventus · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 748 followers View post →
たてぃとぅてと(古生物と虫)
@Fossil_TTTTT · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 1,230 followers View post →
田中順也@古生物のしたたかな生き方
@tanituki · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 2,141 followers View post →
uchi(祝\(^-^)/PPMMPPP)
@uchi987 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 1,928 followers View post →
Asa
@Asa_dinoclub414 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 5,382 followers View post →
ᴮᴼᵂ /// ᵀᴼ /// Sᴾᴵᵀᴱ
@heretiqueZealot · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 1,176 followers View post →
ながぴい
@Nagapiii · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 2,522 followers View post →
みかどぉ な カッパ
@kumamusikun1 · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 291 followers View post →
除草剤ギン
@szdgsek · X

RT @japanfossil: 恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 43 shares · 1,025 followers View post →
中島保寿(古生物学者)
@japanfossil · X

恐竜の肛門のアップ。論文はこちら https://t.co/KNpmBilHHR https://t.co/Eogbe3WAP7

Jan 19, 2021 · 107 likes · 43 shares · 17,623 followers View post →
Angel Giovanni Becerra Rodríguez
@GiovanniBece · X

RT @TomHoltzPaleo: A cloacal opening in a non-avian dinosaur https://t.co/VbHD9FozmR #dinobutt

Jan 19, 2021 · 4 shares · 1,627 followers View post →
Marcos K. Pinheiro / "Marcos Wyvern" (Marcosaurus)
@BongMarcosaurus · X

RT @TomHoltzPaleo: A cloacal opening in a non-avian dinosaur https://t.co/VbHD9FozmR #dinobutt

Jan 19, 2021 · 4 shares · 1,007 followers View post →
Leonardo Torres
@lgot900 · X

https://t.co/TGzchfYRsL

Jan 19, 2021 · 160 followers View post →
Brontops
@Brontops_ · X

RT @TomHoltzPaleo: A cloacal opening in a non-avian dinosaur https://t.co/VbHD9FozmR #dinobutt

Jan 19, 2021 · 4 shares · 521 followers View post →
Library Research Support
@databris · X

Just published: Jakob Vinther, Robert Nicholls, Diane A., Kelly (2020): A cloacal opening in a non-avian dinosaur. https://t.co/mAXrNhRPhi. #dataset #researchdata @BristolBioSci https://t.co/OtsarM12jz

Dec 4, 2020 · 684 followers View post →