Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 561734
Title Non-neotenous origin of the palaeognathous (Aves) pterygoid-palate complex
Author(s) Gussekloo, S.W.S.; Bout, R.G.
Source Canadian Journal of Zoology 80 (2002)9. - ISSN 0008-4301 - p. 1491 - 1497.
DOI https://doi.org/10.1139/z02-148
Publication type Refereed Article in a scientific journal
Publication year 2002
Abstract

Recent studies on the phylogeny of modern birds have indicated that the Palaeognathae may not be the most basal group in modern birds, but are derived within the group. This resulted in the revival of the theory that the Palaeognathae have evolved through neoteny from a flying ancestor. Neoteny was also suggested by other authors after finding palaeognath-like characters in neognathous birds after experimentally induced neoteny (neonatal thyroidectomy). In this study, we test whether the most important palaeognathous character, the palaeognathous pterygoid-palate complex (PPC), has indeed evolved through neoteny. We used a numerical method to compare the morphology of the PPC of adult palaeognathous species with the PPC of several stages of development of a neognathous species. The results show that the morphology of the palaeognathous PPC is, in general, very different from ontogenetic stages of the neognathous species, indicating a non-neotenous origin of the palaeognathous PPC.

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