Proc Biol Sci April 2018 PMID 29643213

Calcium isotopes offer clues on resource partitioning among Cretaceous predatory dinosaurs.

A Hassler, J E Martin, R Amiot, T Tacail, F Arnaud Godet, R Allain, V Balter

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Mentions

57
Peak: 12 in Jul 2019
across 5 sources since Apr 2018

Extended reach

266,424
potential audience

Total likes

3,905

Video views

239,022

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Apr 2018 – Nov 2025

Where it's discussed

  • Reddit42 posts
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AI synopsis

What people are saying

Discussions demonstrate a balanced recognition of the study's value, with posts mentioning resource partitioning and aquatic foraging behaviors, such as the unique isotopic signatures indicating different ecological niches. The tone varies from informative to mildly enthusiastic, emphasizing the study's contribution without overstating its implications.

AgreementModerate agreement

Most discussions acknowledge the findings about resource partitioning and isotopic analysis, indicating general agreement on the significance of the research.

InterestModerate interest

Participants show moderate curiosity, with some referencing specific examples and methodologies, but overall interest remains cautious.

EngagementModerate engagement

Comments reflect some depth, such as mentioning isotope studies and ecological implications, yet lack extensive discussion or debate.

ImpactModerate impact

The posts recognize the potential importance of the research in understanding dinosaur ecology, but no one strongly claims it will revolutionize the field.

Abstract in brief

  • The study suggests that during the mid-Cretaceous period in North Africa, there was an imbalance in predator populations, with large predators like abelisaurids, carcharodontosaurids, and spinosaurids coexisting.
  • By analyzing calcium isotope values in dinosaur teeth, researchers found that spinosaurids had a unique isotopic signature, indicating they likely foraged in aquatic environments, unlike the other terrestrial predators.
  • This distinct isotopic difference provides clear evidence of resource partitioning, meaning these predators occupied different ecological niches to reduce competition.]

Top posts

Most liked on X and Bluesky
Ausarchosaur
@ausar_the · X

Refs: - https://t.co/T4mooOY7hg - https://t.co/oMYyq4PSEQ

Feb 3, 2025 · 5 likes · 7,576 followers View post →
Case Vincent Miller, PhD
@PaleoCase · X

#StableIsotopes, particularly Ca and N, can give insight to the “trophic level” of an animal, essentially how far up the food chain it was. Potentially they can also show if prey lived on land or in the water. Img cr https://t.co/YBffjGz9HA https://t.co/5ngC1zEHSG

Jul 8, 2021 · 5 likes · 300 followers View post →
Elisandre Ardeo (@elisandre.bsky.social)
@Elisandre2002 · X

@ausar_the https://t.co/Pt7o5KIYlv

Nov 24, 2022 · 4 likes · 1,201 followers View post →
中島保寿(古生物学者)
@japanfossil · X

@888Kamauchi 白亜紀の化石だと有機炭素は少し厳しいのと、骨にもリン酸Caの他に微量の炭酸Caが含まれますが続成作用での付加が多すぎて、スピノ由来のものを分離できないようです。そこで、安定度抜群なエナメル質のCa同位体比に注目した所、みごとに陸生恐竜との違いが出たそうです。https://t.co/h5JCukNVlA

Jun 10, 2020 · 1 like · 17,618 followers View post →
robbingcars91
@K91Robby · X

Sarcosuchus: The Prehistoric Super Croc https://t.co/lsfdMmceTI via @YouTube

Dec 24, 2023 · 109 followers View post →
Hestia96052149
@Hestia96052149 · X

@Vaalxeny @RenardeElfique Et pour info c'était vrai https://t.co/Umvov6mmWf

Aug 24, 2025 · 64 followers View post →

All mentions

Hestia96052149
@Hestia96052149 · X

@Vaalxeny @RenardeElfique Et pour info c'était vrai https://t.co/Umvov6mmWf

Aug 24, 2025 · 64 followers View post →
Dalibor Jovanovic
@Dalibor59851424 · X

@HornHunterH @ausar_the It is, isotope studies suggest that Sarcosuchus was a generalist feeder, not a pisicivore. https://t.co/IqFoOWpEFn

Feb 23, 2025 · 55 followers View post →
Ausarchosaur
@ausar_the · X

Refs: - https://t.co/T4mooOY7hg - https://t.co/oMYyq4PSEQ

Feb 3, 2025 · 5 likes · 7,576 followers View post →
robbingcars91
@K91Robby · X

Sarcosuchus: The Prehistoric Super Croc https://t.co/lsfdMmceTI via @YouTube

Dec 24, 2023 · 109 followers View post →
Elisandre Ardeo (@elisandre.bsky.social)
@Elisandre2002 · X

@ausar_the https://t.co/Pt7o5KIYlv

Nov 24, 2022 · 4 likes · 1,201 followers View post →
Case Vincent Miller, PhD
@PaleoCase · X

#StableIsotopes, particularly Ca and N, can give insight to the “trophic level” of an animal, essentially how far up the food chain it was. Potentially they can also show if prey lived on land or in the water. Img cr https://t.co/YBffjGz9HA https://t.co/5ngC1zEHSG

Jul 8, 2021 · 5 likes · 300 followers View post →
中島保寿(古生物学者)
@japanfossil · X

@888Kamauchi 白亜紀の化石だと有機炭素は少し厳しいのと、骨にもリン酸Caの他に微量の炭酸Caが含まれますが続成作用での付加が多すぎて、スピノ由来のものを分離できないようです。そこで、安定度抜群なエナメル質のCa同位体比に注目した所、みごとに陸生恐竜との違いが出たそうです。https://t.co/h5JCukNVlA

Jun 10, 2020 · 1 like · 17,618 followers View post →
Dinosaur Locomotion Evolution Study | PDF
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(doi:10.1098/rspb.2018.0197) 48. Hutchinson JR. 2001 The evolution of pelvic 19340. (doi:10.1038/s41598-021-97870-8) 34. Sakamoto M. 2010 Jaw biomechanics ...

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Это исследование ( https://doi.org/10.1098/rspb.2018.0197 ) также показало, что саркозух съедал большое количество динозавров и другой ...

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Oct 18, 2025 View →
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Este estudo ( https://doi.org/10.1098/rspb.2018.0197 ) também descobriu que sarcosuchus comia uma grande quantidade de dinossauros e outras ...

Oct 18, 2025 View →
Sarcosuchus and Suchomimus, two presumably competing top ...
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... with each other, thanks to resource partitioning: https://royalsocietypublishing.org/doi/10.1098/rspb.2018.0197 · Ex_Snagem_Wes. • 4mo ago.

Aug 27, 2025 View →
सारकोसुचस और सुकोमिमस, दो शायद प्रतिस्पर्धी टॉप प्रीडेटर, दोनों एल्हज़ ...
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कूल आर्ट। फिर, उन्होंने एक-दूसरे के साथ ज़्यादा कॉम्पिटिशन नहीं किया, रिसोर्स पार्टीशन की वजह से: https://royalsocietypublishing.org/doi/10.1098/rspb.2018.0197.

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งานอาร์ตเจ๋ง. แล้วพวกเขาก็ไม่ได้แข่งกันมากนัก ขอบคุณการแบ่งทรัพยากร: https://royalsocietypublishing.org/doi/10.1098/rspb.2018.0197 · Ex_Snagem_Wes. • 4 เดือน ...

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... the fish specialists. https://royalsocietypublishing.org/doi/10.1098/rspb.2018.0197 · u/Bestdad_Bondrewd avatar · Bestdad_Bondrewd. • 9mo ago.

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Нет, оно жрало рыб И динозавров. Спинозавриды были специалистами по рыбе. https://royalsocietypublishing.org/doi/10.1098/rspb.2018.0197.

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https://royalsocietypublishing.org/doi/10.1098/rspb.2018.0197.

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Proc. R. Soc. B Biol. Sci. 285, 20180197. https://doi.org/ · 10.1098/rspb.2018.0197.

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这两项研究:. https://doi.org/10.1080%2F08912963.2014.893300 · https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2018.0197 · Userur. • 6年 ...

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Sarcosuchus et proie par Eldar Zakirov : r/Naturewasmetal
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... plutôt que de poissons. https://royalsocietypublishing.org/doi/full/10.1098/rspb.2018.0197. Pour enfin mettre fin à cela… Siats. • il y a ...

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Sarcosuchus y Presa por Eldar Zakirov : r/Naturewasmetal
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... 10.1098/rspb.2018.0197. Para finalmente zanjar eso.... Siats. • hace 7 a. El cocodriloforme gigante S. imperator exhibe una dieta intermedia ...

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... nicht von Fischen ernährte. https://royalsocietypublishing.org/doi/full/10.1098/rspb.2018.0197. Um das endlich zu klären.... Siats. • vor ...

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Sarcosuchus e Presa por Eldar Zakirov : r/Naturewasmetal
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... em vez de peixes. https://royalsocietypublishing.org/doi/full/10.1098/rspb.2018.0197. Para finalmente acabar com isso.... Siats. • há ...

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... mga tetrapod kaysa sa isda. https://royalsocietypublishing.org/doi/full/10.1098/rspb.2018.0197. Para sa wakas ay matapos na ito.... Siats. • ...

Mar 26, 2019 View →
Sarcosuchus and Prey by Eldar Zakirov : r/Naturewasmetal
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... on tetrapods rather than fish. https://royalsocietypublishing.org/doi/full/10.1098/rspb.2018.0197. To finally put that to rest.... Siats. • ...

Mar 26, 2019 View →
Paleontologist Paul Sereno poses with the skull of SARCOSUCHUS ...
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... large herbivorous dinosaurs more than it fed on fishes https://royalsocietypublishing.org/doi/full/10.1098/rspb.2018.0197 · Iamnotburgerking.

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The Jurassic Foundation - Hot off the presses, here's some brand ...
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... all about it here: http://dx.doi.org/10.1098/rspb. 2018.0197. Karen Moreno and 18 others ·

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The dinosaur menu, as revealed by calcium | ScienceDaily
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Proceedings of the Royal Society B: Biological Sciences, 2018; 285 (1876): 20180197 DOI: 10.1098/rspb.2018.0197. Cite This Page: MLA; APA ...

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The dinosaur menu, as revealed by calcium | EurekAlert!
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