Reconciling the convergence of supraspinous fossa shape among hominoids in light of locomotor differences
Bibliographic Data
| ID | 8315787 |
|---|---|
| Authors | David J Green (0000-0002-0822-7395, Department of Anatomy Midwestern University Downers Grove IL 60515, corresponding author), Yui Sugiura (Department of Anatomy Midwestern University Downers Grove IL 60515), Brielle C Seitelman (Department of Anatomy Midwestern University Downers Grove IL 60515), Philipp Gunz (0000-0002-2350-4450, Department of Human Evolution Max Planck Institute Leipzig Germany) |
| Year | 2015 |
| Volume | 156 |
| Issue | 4 |
| Pages | 498-510 |
| Publication date | 2015-04-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.22695 |
| PMID | 25607373 |
| OpenAlex | W1850430998 |
| Language | EN |
| Citations received | 6 |
| References cited | 39 |
Differences in scapular morphology between modern humans and the African and lesser apes are associated with the distinct locomotor habits of these groups. However, several traits, particularly aspects of the supraspinous fossa, are convergent between Homo and Pongo —an unexpected result given their divergent locomotor habits. Many morphological assessments of the scapula rely on the limited number of static landmarks available, and traditional approaches like these tend to oversimplify scapular shape. Here, we present the results of two geometric morphometric (GM) analyses of hominoid supraspinous fossa shape—one employing five homologous landmarks and another with 83 sliding semilandmarks—alongside those of traditional methods to evaluate if three‐dimensional considerations of fossa shape afford more comprehensive insights into scapular shape and functional morphology. Traditional measures aligned Pongo and Homo with narrow and transversely oriented supraspinous fossae, whereas African ape and Hylobates fossae are broader and more obliquely situated. However, our GM results highlight that much of the convergence between Homo and Pongo is reflective of their more medially positioned superior angles. These approaches offered a more complete assessment of supraspinous shape and revealed that the Homo fossa, with an intermediate superior angle position and moderate superoinferior expansion, is actually reminiscent of the African ape shape. Additionally, both Pongo and Hylobates were shown to have more compressed fossae, something that has not previously been identified through traditional analyses. Thus, the total morphological pattern of the Pongo supraspinous fossa is unique among hominoids, and possibly indicative of its distinctive locomotor habits. Am J Phys Anthropol 156:498–510, 2015. © 2015 Wiley Periodicals, Inc
Biological evolution · Biology · Evolutionary biology · Fossa · Hominidae · Hylobates · Morphology (biology) · Pongo pygmaeus · Zoology · Anatomy · Genetics · Morphological variations and asymmetry · Pleistocene-Era Hominins and Archaeology · Primate Behavior and Ecology
From the ground up
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A reassessment of living hominoid postcranial variability
Scapula form and biomechanics in gorillas
Body mass in comparative primatology
Clavicle length, throwing performance and the reconstruction of the Homo erectus shoulder
Rotator cuff muscle function and its relation to scapular morphology in apes
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| Unique citing works | 6 |
|---|---|
| Citations per year | 0,55 |
| Citation span | 2015 - 2020 (6) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 6 |