R Soc Open Sci June 2025 PMID 40575444

New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late Cretaceous North America.

C Henrik Woolley, Joseph J W Sertich, Keegan M Melstrom, Randall B Irmis, Nathan D Smith

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AI synopsis

What people are saying

The discussions highlight excitement about the discovery of new lizard fossils, with references to phrases like 'unexpected richness' and mentions of how the fossils challenge previous assumptions, reflecting both scientific interest and recognition of potential impact. The tone and content suggest a shared appreciation for how these findings deepen our understanding of Late Cretaceous ecosystems.

AgreementStrong agreement

Most discussions support the significance of the discovery, emphasizing its contribution to paleontology.

InterestHigh interest

Posts show a high level of curiosity and enthusiasm about the fossils and their implications.

EngagementModerate engagement

Many posts reference the research directly or connect it to broader scientific topics, indicating a good level of engagement.

ImpactModerate impact

Participants consider the findings important for understanding prehistoric life, though some focus on the novelty rather than broad societal impact.

Abstract in brief

New fossils of large monstersaurian lizards from the Kaiparowits Formation in Utah show a richer diversity of big-bodied lizards in Late Cretaceous North America than previously known.
The study describes a new species based on partial skeletons, revealing unique features like fused osteoderms and autotomy septa, and highlights the need to reassess previously identified fossils of similar lizards.
These findings indicate at least three different lineages of monstersaurian lizards existed in the ancient landmass of Laramidia during the Campanian stage, and the new fossils provide important clues for identifying other fossilized lizard parts.

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This video delves into new discoveries of large-bodied lizard specimens from the Kaiparowits Formation of Utah, showcasing the unexpected diversity of these creatures during the Late Cretaceous period in North America…

Paleo Lab · Sep 22, 2025 14,895 views

John Stopman

@StopmanJohn · X

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Jul 17, 2025 · 136 followers View post →

Royal Society Publishing

@royalsocietypublishing.org · Bluesky

New from #RSOS: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late Cretaceous North America. Read the full paper: royalsocietypublishing.org/doi/10.1098/... #palaeontology #fossils ‪@paleo-hank.bsky.social‬

Jul 6, 2025 · 2 likes View post →

Jimmer

@jmheatherly.bsky.social · Bluesky

What Did Denisovans Look Like youtu.be/MfDaVzk4ck8?...

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Paleo Curiosities

@21Fede_ · X

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#Science #Whales #Anthropology https://t.co/XxzGlqcM3n

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RT @PaleontologieFr: Nouveau #fossile nommé d'après l'œuvre de #Tolkien : Un #lézard

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Lox

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RT @PaleontologieFr: Nouveau #fossile nommé d'après l'œuvre de #Tolkien : Un #lézard

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Paléontologie

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Nouveau #fossile nommé d'après l'œuvre de #Tolkien : Un #lézard

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ScreenThePumpkin

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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WillPower276

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GodzillaBC/Jurassic Gobal 240

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Kyokichi　屋号：Office Liquid

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Yankee

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Juan Yu See #FreePalestine

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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MarkyboJens

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あお

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LBouttin

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Luke

@_LukeGailey_ · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Ognimdo2002

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Arch - Commissions Open!

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Starburr

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Domo

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Kabir Chatterjee

@Logicoraptor · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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carnodrawer (Ian)

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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PaleoGalli

@TwitiGalli · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Carlos Espadas LeMancBones

@LeSantino19 · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Diego Vicuña Rau

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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carcharia

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คุณบิวสัตว์โลก

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William Chen

@SanaeTW · X

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Gio

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Mozenrath

@Mozenrath1981 · X

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SpinelessChordate

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Concentrated Lizard Autism

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/ɹɑb/

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Paleotitan235

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DreadfulWindfall a.k.a. The Wreckers Guy.

@alex_lemonds · X

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Trachemys scripta elegans

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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@yuagainyes · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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KenjiDraco

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Andrzej Wolniewicz

@ASWolniewicz · X

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さんせうを

@Mr_Hanzaki · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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dansdoodles

@Dansdoodles2000 · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Millerrex

@Millerrex66 · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Vampyrum Spectrum Martini

@justwhaletingz · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

Jun 18, 2025 · 80 shares · 1,128 followers View post →

パンテオン（半遁モード）

@pantheo27705718 · X

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Sr.Acre

@SrAcre · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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RickRaptor105

@RickRaptor105 · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Basil

@PaleoBasil · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Glave (glavenychus.bsky.social)

@glavenych · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

Jun 18, 2025 · 80 shares · 1,601 followers View post →

Odobenus rosmarus balticus

@Mahajangasuchus · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Alberto Ubaldini

@UbaldiniAlberto · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Isaiah Garza

@Ijgarza87 · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Antiochus

@antiochus123 · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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GattyCroc

@CrocGatty · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Horsefly

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RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Extinct and Extant

@Extinct_Extant · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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....

@Drsgo56 · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Monster

@Monster77571319 · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Darío Estraviz López

@DarioEstraviz · X

RT @Dinoh555: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late C…

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Biscuit Birb

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Só Documentários

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IndoJuacoraptor the game (DM for commissions)

@juacoraptor · X

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dactylioceras.bsky.social

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Dactylioceras

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RT @TomHoltzPaleo: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in L…

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Angel Giovanni Becerra Rodríguez

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RT @TomHoltzPaleo: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in L…

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Juan Yu See #FreePalestine

@Juanyudocus · X

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PremsoupTH

@p_wiy52829 · X

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Vampyrum Spectrum Martini

@justwhaletingz · X

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FossilFlex™

@FossilFlex · X

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....

@Drsgo56 · X

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RickRaptor105

@RickRaptor105 · X

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Andrzej Wolniewicz

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RT @TomHoltzPaleo: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in L…

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Extinct and Extant

@Extinct_Extant · X

RT @TomHoltzPaleo: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in L…

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PaleoGalli

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RT @TomHoltzPaleo: New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in L…

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らえらぷす@HJ連載中

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Thomas R. Holtz, Jr.

@TomHoltzPaleo · X

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New monstersaur specimens from the Kaiparowits Formation of Utah reveal unexpected richness of large-bodied lizards in Late Cretaceous North America.

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All mentions

Denisovan Human Skull Discovery and New Prehistoric Findings

Exploring Late Cretaceous Large-Bodied Lizards in Utah