Limited convergence in the postcranium of aquatic crocodylomorpha
收藏DataONE2023-11-14 更新2025-08-02 收录
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Thalattosuchia (Early JurassicâEarly Cretaceous) and Dyrosauridea (Late CretaceousâEarly Eocene) are crocodylomorph archosaurs which diversified in fluvial and marine environments and endured extinction events (i.e. JurassicâCretaceous boundary for Thalattosuchia; CretaceousâPaleogene for Dyrosauridea). Their postcrania remain globally undervalued in anatomical descriptions and diagnoses, shrouding the locomotive adaptations that possibly underpinned their radiations and longevity. We thoroughly surveyed the postcranial morphology of Dyrosauridea and Thalattosuchia, recreated their girdles in three-dimensions using tens of high-precisions 3D scans, and analysed their shape using geometric morphometrics. Dyrosauridea and Thalattosuchia have clearly distinct postcrania, even when found within similar environments, suggesting the existence of clade-specific features limiting the strength of evolutionary convergence. Moreover, the range of postcranial morphologies evolved by dyrosaurids and..., This dataset contains:
the supplementary information of the article 'Limited convergence in the postcranium of aquatic crocodylomorpha'
all the repaired 3D models (original raw scans can be found on Morphosource)
all the landmark coordinates
all the R scripts to run the different analyses
,
R scripts require the free statistical software R
3D models are PLY and can be viewed with a variety of softwares
Landmark coordinates were originally taken with Checkpoint Stratovan
, # Data from: Limited convergence in the postcranium of aquatic crocodylomorpha
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## Description of the Data and file structure
Morphosource contains the original raw meshes (modeled from laser or white-light scans)
The datasets uploaded on Dryad and ORBi contain:
* the supplementary information of the article 'LIMITED CONVERGENCE IN THE POSTCRANIUM OF AQUATIC CROCODYLOMORPHA';
* all the repaired 3D models (original raw scans can be found on Morphosource)
* all the landmark coordinates
* all the R scripts to run the different analyses
Detailed decription of the files:
* Models.7z comprises all our repaired 3D models with their landmark coordinates and corresponding sliders.csv file used in the landmark analysis from the Code.R and Code\_LandmarkCombine\_updated.r scripts. Models.7z contains bone folders named after each bone used in our analyses: Coracoid, Femur\_outline, Humerus, Ilium, Ischium, Pubis, Scapula (***XXX***), plus a *Combined* folder. The *Combined* folder compris...
创建时间:
2025-07-19



