Evidence map›Paper›PMID 40337259›Full record

ArticleRoyal Society open science2025

Rise of the king: Gondwanan origins and evolution of megaraptoran dinosaurs.

Cassius Morrison, Charlie Roger Scherer, Ezekiel V O'Callaghan, Collin Layton, Colin Boisvert, Mauro Aranciaga Rolando, Leroy Durrant, Pedro Salas, Steven J R Allain, Samuel J L Gascoigne

Abstract read
In one paragraph

Article in Royal Society open science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Cassius MorrisonDepartment of Earth Sciences, University College London, London, UK.ORCID https://orcid.org/0009-0009-3264-4752
Charlie Roger SchererDepartment of Earth Sciences, University College London, London, UK.ORCID https://orcid.org/0009-0005-5846-9789
Ezekiel V O'CallaghanDepartment of Biology, Northern Arizona University, Flagstaff, AZ, USA.ORCID https://orcid.org/0009-0001-0447-9106
Collin LaytonDepartment of Neurobiology, University of Pittsburgh, Pittsburgh, PA, USA.
Colin BoisvertOklahoma State University Center for Health Sciences, Tulsa, OK, USA.ORCID https://orcid.org/0009-0000-6964-2552
Mauro Aranciaga RolandoMuseo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina.ORCID https://orcid.org/0000-0002-0833-6866
Leroy DurrantDepartment of Geology and Geophysics, University of Wyoming, Laramie, WY, USA.
Pedro SalasIndependent Researcher, Spain.
Steven J R AllainWrittle School of Agriculture, Animal and Environmental Sciences, Anglia Ruskin University, Chelmsford, Essex, UK.ORCID https://orcid.org/0000-0002-5669-0149
Samuel J L GascoigneSchool of Biological Sciences, University of Aberdeen, Aberdeen, UK.ORCID https://orcid.org/0000-0002-2984-1810

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Late Cretaceous Earth was dominated by theropods such as tyrannosauroids and megaraptorans; however, it is unclear how these clades diversified and grew to massive proportions. This study aimed to conduct a biogeographical analysis and test climate as a potential mechanism for the increase in size. We used published phylogenetic matrices with the R package BioGeoBears to test different biogeographical hypotheses for both clades. We mapped body mass (BM) and body length against known climate data to test this potential hypothesis. Continental-scale variance did not drive tyrannosauroid biogeography and instead widespread ancestral populations, sympatric speciation and localized extinctions throughout these clades constricted geographic range. Both patterns were supported by statistical analyses. This biogeographical model also indicates the ancestor of the clade

Indexed as

BiogeographyLate CretaceousMegaraptoraTyrannosauroidea

Identifiers

PMID40337259
PMCPMC12055284

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.