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04:32
Dissection, MicroCT Scanning and Morphometric Analyses of the Baculum
Published on: March 19, 2017
Middle Miocene Pierolapithecus provides a first glimpse into early hominid pelvic morphology
Ashley S Hammond1, David M Alba, Sergio Almécija
1Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, M263 Medical Sciences Building, Columbia, MO 65212, USA. ashammond@mail.missouri.edu
Journal of Human Evolution
|April 3, 2013
Summary
The oldest known great ape pelvis from Pierolapithecus catalaunicus reveals primitive traits and incipient adaptations for upright posture. This fossil challenges assumptions about hominoid pelvic evolution and phylogenetic relationships.
Area of Science:
- Paleoanthropology
- Primate Evolution
- Fossil Anatomy
Background:
- The evolutionary history of hominids is illuminated by fossil discoveries.
- Understanding early hominid anatomy is crucial for reconstructing ancestral body plans.
Purpose of the Study:
- To describe and analyze the pelvic remains of Pierolapithecus catalaunicus.
- To infer the phylogenetic position and locomotor behaviors of early great apes.
Main Methods:
- Morphological analysis of fossil ilium and ischium fragments.
- Comparative anatomy with extant and fossil primates.
Main Results:
- The Pierolapithecus pelvis exhibits a mosaic of primitive and derived features.
- Iliac morphology suggests adaptations for orthograde behaviors, differing from Proconsul nyanzae.
- Pelvic features indicate potential homoplasy in extant ape morphology.
Conclusions:
- The Pierolapithecus pelvis provides insights into the early evolution of the hominoid body plan.
- Fossil evidence suggests that pelvic adaptations for bipedalism may have originated earlier than previously thought.
- This discovery supports the complexity of hominoid evolutionary pathways.
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