The origin and the fate of the cranial ribs in the avian chondrocrania

The origin and the fate of the cranial ribs in three birds; Streptopelia senegalensis aegyptiaca, Pterocles alchata caudacutus and Passer domesticus niloticus, have been described. The requested characters for true cranial ribs are determined. The probable assumption that cranial ribs are developed...

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Main Authors: M.M. Zaher, A.M. Riad
Format: Article
Language:English
Published: SpringerOpen 2012-05-01
Series:Journal of Basic and Applied Zoology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2090989612000379
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author M.M. Zaher
A.M. Riad
author_facet M.M. Zaher
A.M. Riad
author_sort M.M. Zaher
collection DOAJ
description The origin and the fate of the cranial ribs in three birds; Streptopelia senegalensis aegyptiaca, Pterocles alchata caudacutus and Passer domesticus niloticus, have been described. The requested characters for true cranial ribs are determined. The probable assumption that cranial ribs are developed in all birds is suggested, but because of their rapid regression several successive young stages are needed for their identification. The present finding invalidates De Beers & Barrington’s and Slaby’s theory that the metotic cartilage in birds originates from the cranial ribs.
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spelling doaj.art-a65410d6b0284d16823cd75cadc942962022-12-22T03:10:53ZengSpringerOpenJournal of Basic and Applied Zoology2090-98962012-05-0165319920210.1016/j.jobaz.2012.10.005The origin and the fate of the cranial ribs in the avian chondrocraniaM.M. ZaherA.M. RiadThe origin and the fate of the cranial ribs in three birds; Streptopelia senegalensis aegyptiaca, Pterocles alchata caudacutus and Passer domesticus niloticus, have been described. The requested characters for true cranial ribs are determined. The probable assumption that cranial ribs are developed in all birds is suggested, but because of their rapid regression several successive young stages are needed for their identification. The present finding invalidates De Beers & Barrington’s and Slaby’s theory that the metotic cartilage in birds originates from the cranial ribs.http://www.sciencedirect.com/science/article/pii/S2090989612000379StreptopeliaPteroclesPasserCranial ribsMetotic cartilage
spellingShingle M.M. Zaher
A.M. Riad
The origin and the fate of the cranial ribs in the avian chondrocrania
Journal of Basic and Applied Zoology
Streptopelia
Pterocles
Passer
Cranial ribs
Metotic cartilage
title The origin and the fate of the cranial ribs in the avian chondrocrania
title_full The origin and the fate of the cranial ribs in the avian chondrocrania
title_fullStr The origin and the fate of the cranial ribs in the avian chondrocrania
title_full_unstemmed The origin and the fate of the cranial ribs in the avian chondrocrania
title_short The origin and the fate of the cranial ribs in the avian chondrocrania
title_sort origin and the fate of the cranial ribs in the avian chondrocrania
topic Streptopelia
Pterocles
Passer
Cranial ribs
Metotic cartilage
url http://www.sciencedirect.com/science/article/pii/S2090989612000379
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