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Morphological correlates of the grooming claw in distal phalanges of platyrrhines and other primates: a preliminary study.

Publication ,  Journal Article
Maiolino, S; Boyer, DM; Rosenberger, A
Published in: Anatomical record (Hoboken, N.J. : 2007)
December 2011

Grooming claws are present on the second pedal digits of strepsirhines and on the second and third pedal digits of tarsiers. However, their presence in New World monkeys is often overlooked. As such, the absence of a grooming claw is generally considered an anthropoid synapomorphy. This study utilizes a quantitative multivariate analysis to define grooming claw morphology and document its presence in platyrrhine monkeys. Our results show that owl monkeys possess grooming claws similar to those of strepsirhines, while titi monkeys possess grooming claw-like morphology. Therefore, we conclude that anthropoids are not clearly united by the absence of a grooming claw. Furthermore, due to their presence in three major primate clades, we infer that it is likely that a grooming claw was present on the second pedal digit of the ancestor of living primates. Therefore, we advise the reassessment of fossil adapids in light of the anatomical correlates described here. This should increase resolution on the homology and polarity of grooming claw morphology, and, therefore, will help provide a sharper picture of primate evolution.

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Published In

Anatomical record (Hoboken, N.J. : 2007)

DOI

EISSN

1932-8494

ISSN

1932-8486

Publication Date

December 2011

Volume

294

Issue

12

Start / End Page

1975 / 1990

Related Subject Headings

  • Toe Phalanges
  • Primates
  • Platyrrhini
  • Hoof and Claw
  • Grooming
  • Biological Evolution
  • Animals
  • Anatomy & Morphology
  • 3104 Evolutionary biology
  • 3101 Biochemistry and cell biology
 

Citation

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Maiolino, S., Boyer, D. M., & Rosenberger, A. (2011). Morphological correlates of the grooming claw in distal phalanges of platyrrhines and other primates: a preliminary study. Anatomical Record (Hoboken, N.J. : 2007), 294(12), 1975–1990. https://doi.org/10.1002/ar.21498
Maiolino, Stephanie, Doug M. Boyer, and Alfred Rosenberger. “Morphological correlates of the grooming claw in distal phalanges of platyrrhines and other primates: a preliminary study.Anatomical Record (Hoboken, N.J. : 2007) 294, no. 12 (December 2011): 1975–90. https://doi.org/10.1002/ar.21498.
Maiolino S, Boyer DM, Rosenberger A. Morphological correlates of the grooming claw in distal phalanges of platyrrhines and other primates: a preliminary study. Anatomical record (Hoboken, NJ : 2007). 2011 Dec;294(12):1975–90.
Maiolino, Stephanie, et al. “Morphological correlates of the grooming claw in distal phalanges of platyrrhines and other primates: a preliminary study.Anatomical Record (Hoboken, N.J. : 2007), vol. 294, no. 12, Dec. 2011, pp. 1975–90. Epmc, doi:10.1002/ar.21498.
Maiolino S, Boyer DM, Rosenberger A. Morphological correlates of the grooming claw in distal phalanges of platyrrhines and other primates: a preliminary study. Anatomical record (Hoboken, NJ : 2007). 2011 Dec;294(12):1975–1990.
Journal cover image

Published In

Anatomical record (Hoboken, N.J. : 2007)

DOI

EISSN

1932-8494

ISSN

1932-8486

Publication Date

December 2011

Volume

294

Issue

12

Start / End Page

1975 / 1990

Related Subject Headings

  • Toe Phalanges
  • Primates
  • Platyrrhini
  • Hoof and Claw
  • Grooming
  • Biological Evolution
  • Animals
  • Anatomy & Morphology
  • 3104 Evolutionary biology
  • 3101 Biochemistry and cell biology