Three-dimensional development of the palate in bilateral orofacial cleft newborns 1 year after early neonatal cheiloplasty: Classic and geometric morphometric evaluation

2020 ◽  
Vol 48 (4) ◽  
pp. 383-390 ◽  
Author(s):  
Lenka Jaklová ◽  
Jiří Borský ◽  
Michal Jurovčík ◽  
Eva Hoffmannová ◽  
Miloš Černý ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Orofacial Cleft ◽  
Geometric Morphometric ◽  
Morphometric Evaluation

scholarly journals Geometric morphometric investigation of craniofacial morphological change in domesticated silver foxes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Timothy M. Kistner ◽  
Katherine D. Zink ◽  
Steven Worthington ◽  
Daniel E. Lieberman
Keyword(s):  
Three Dimensional ◽  
Cranial Base ◽  
Craniofacial Morphology ◽  
Wild Populations ◽  
Linear Measurements ◽  
Skeletal Morphology ◽  
Geometric Morphometric ◽  
Domestication Syndrome ◽  
Morphometric Investigation ◽  
Unselected Population

AbstractTo test the effects of domestication on craniofacial skeletal morphology, we used three-dimensional geometric morphometrics (GM) along with linear and endocranial measurements to compare selected (domesticated) and unselected foxes from the Russian Farm-Fox Experiment to wild foxes from the progenitor population from which the farmed foxes are derived. Contrary to previous findings, we find that domesticated and unselected foxes show minimal differences in craniofacial shape and size compared to the more substantial differences between the wild foxes and both populations of farmed foxes. GM analyses and linear measurements demonstrate that wild foxes differ from farmed foxes largely in terms of less cranial base flexion, relatively expanded cranial vaults, and increased endocranial volumes. These results challenge the assumption that the unselected population of foxes kept as part of the Russian Farm-Fox experiment are an appropriate proxy for ‘wild’ foxes in terms of craniofacial morphology and highlight the need to include wild populations in further studies of domestication syndrome to disentangle the phenotypic effects of multiple selection pressures. These findings also suggest that marked increases in docility cannot be reliably diagnosed from shape differences in craniofacial skeletal morphology.

scholarly journals A developmentally descriptive method for quantifying shape in gastropod shells

2020 ◽  
Vol 17 (163) ◽  
pp. 20190721
Author(s):  
J. Larsson ◽  
A. M. Westram ◽  
S. Bengmark ◽  
T. Lundh ◽  
R. K. Butlin
Keyword(s):  
Empirical Studies ◽  
Three Dimensional ◽  
Shell Shape ◽  
Large Set ◽  
Littorina Saxatilis ◽  
Shape Variation ◽  
Gastropod Shell ◽  
Geometric Morphometric ◽  
Wide Range ◽  
Descriptive Method

The growth of snail shells can be described by simple mathematical rules. Variation in a few parameters can explain much of the diversity of shell shapes seen in nature. However, empirical studies of gastropod shell shape variation typically use geometric morphometric approaches, which do not capture this growth pattern. We have developed a way to infer a set of developmentally descriptive shape parameters based on three-dimensional logarithmic helicospiral growth and using landmarks from two-dimensional shell images as input. We demonstrate the utility of this approach, and compare it to the geometric morphometric approach, using a large set of Littorina saxatilis shells in which locally adapted populations differ in shape. Our method can be modified easily to make it applicable to a wide range of shell forms, which would allow for investigations of the similarities and differences between and within many different species of gastropods.

Dentine morphology of Atapuerca‐Sima de los Huesos lower molars: Evolutionary implications through three‐dimensional geometric morphometric analysis

2018 ◽  
Vol 166 (2) ◽  
pp. 276-295 ◽  
Author(s):  
Hester Hanegraef ◽  
María Martinón‐Torres ◽  
Marina Martínez de Pinillos ◽  
Laura Martín‐Francés ◽  
Amélie Vialet ◽  
...  
Keyword(s):  
Morphometric Analysis ◽  
Three Dimensional ◽  
Geometric Morphometric ◽  
Sima De Los Huesos ◽  
Geometric Morphometric Analysis

A geometric-morphometric assessment of three-dimensional models of experimental cut-marks using flint and quartzite flakes and handaxes

2019 ◽  
Vol 517 ◽  
pp. 45-54 ◽  
Author(s):  
Gonzalo José Linares-Matás ◽  
José Yravedra ◽  
Miguel Ángel Maté-González ◽  
Lloyd A. Courtenay ◽  
Julia Aramendi ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Geometric Morphometric ◽  
Cut Marks ◽  
Dimensional Models ◽  
Three Dimensional Models ◽  
Morphometric Assessment
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