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1 July 2006 Two Additional Synapomorphies of Grebes Podicipedidae and Flamingos Phoenicopteridae
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Abstract

Sister group relationship of grebes and flamingos is well supported by both molecular and morphological data. Surprisingly, most of the morphological characters now recognized as synapomorphies of grebes and flamingos have long been known in both taxa, but they were never considered to be homologous. The same is true of two additional synapomorphies discussed here, the presence of nail-like ungual phalanges and prominent caudolateral projections on the ventral side of the cervical vertebrae (processus ventrales).

Albrecht Manegold "Two Additional Synapomorphies of Grebes Podicipedidae and Flamingos Phoenicopteridae," Acta Ornithologica 41(1), 79-82, (1 July 2006). https://doi.org/10.3161/068.041.0113
Received: 1 March 2006; Published: 1 July 2006
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