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Exploring Eucladoceros ecomorphology using geometric morphometrics.

Sabrina C Curran1

  • 1Ohio University, Department of Sociology and Anthropology, Athens, OH, 45701.

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Summary
This summary is machine-generated.

Ecological functional morphology (ecomorphology) reconstructs ancient environments using animal form and function. This study of extinct deer (Eucladoceros) suggests they inhabited open environments, differing from current browser reconstructions.

Keywords:
calcaneuscervidaefemurlocomotionphylogenythird phalanxtibia

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Area of Science:

  • Paleoecology
  • Paleontology
  • Functional Morphology

Background:

  • Ecological functional morphology (ecomorphology) is crucial for reconstructing paleoenvironmental parameters at hominin sites.
  • Cervid postcranial functional morphology varies with habitat, involving trade-offs between joint stability/mobility and movement speed/power.

Purpose of the Study:

  • To conduct a geometric morphometric study of cervid rearlimb morphology.
  • To investigate the relationship between morphology, phylogeny, body size, and ecomorphology in cervids.
  • To apply these methods to the extinct Pleistocene cervid, Eucladoceros, found at early Eurasian hominin sites.

Main Methods:

  • Geometric morphometrics applied to cervid rearlimb skeletal elements.
  • Analysis of phylogenetic signals and correlations with body size.
  • Comparison of extinct Eucladoceros morphology with extant cervid habitat adaptations.

Main Results:

  • Tibia and calcaneus morphology show significant phylogenetic signals; femur and third phalanx do not.
  • Tibia and third phalanx morphology correlate with body size, with phylogeny influencing the tibial correlation.
  • Eucladoceros specimens suggest an open habitat preference, contrasting with presumed browsing diets.

Conclusions:

  • Cervid rearlimb morphology reflects habitat adaptations, with open-adapted species favoring limb stability.
  • Eucladoceros likely inhabited open environments, exhibiting a behavioral regime potentially unique among cervids.
  • Ecomorphology provides insights into the paleoecology of extinct species and their interactions with early hominins.