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About this product
- DescriptionModern birds (Neornithes) are represented by two big lineages, the Palaeognathae (Tinamiformes + Ratitae) and the Neognathae [Galloanserae + Neoaves (Metaves + Coroaves)]. Both clades sum approximately 10,000 species of which 60% are Passeriformes (the most diverse clade of terrestrial vertebrates). A comparison between the past and the present reveals a complex and hallmarked evolutionary and biogeographic history which would have begun over 65 million years ago. For South America (SA) this includes: (1) the presence of taxa with uncertain affinities and the absence of Passeriformes during the Paleogene; (2) a progressive and accelerated increase of the species starting at the Neogene (Miocene); (3) important extinct lineages (e.g. Phorusrhacidae, Teratornithidae) that migrate to North America after the rising of the Panama isthmus; (4) groups with major diversification in the Neogene that survives wadays represented by scarce species endemic of SA (Cariamidae) or that inhabits mainly in the southern hemisphere (Anhingidae); (5) very diverse living groups with scarce (e.g., Passeriformes) or ne (e.g., Apodiformes) fossil record in SA, which stem-groups are registered in Europe. Apparently, the changes in diversity of the south American Neornithes have been the result of successive radiation, biogeographic connections with North America and in a mir scale, some extinctions. The opening of the Drake's passage and the occurrence of the circumpolar Antarctic flow are t sufficient causes to explain the highly disparity between the weddelians penguins (Sphenisciformes) of Antartica and those of the patagonian Atlantic Ocean.
- Author BiographyClaudia P. Tambussi has a PhD in Natural Science (Universidad Nacional de La Plata, UNLP) and is Coordinator of La Plata Museum Education Office. She is a Researcher of CONICET (Consejo Nacional de Investigaciones Cientificas y Tecnicas) performing tasks in paleobiology and evolution of South American and Antarctic birds at La Plata Museum. She is a member of the editorial staff of the MUSEO Journal. She has written two popular science books, (co-)written over 60 scientific papers and contributed to textbooks of Natural Sciences. Federico J. Degrange has a License in Biology, with orientation on paleontology, obtained at La Plata University. He is a member of CONICET, and an advanced PhD student in Natural Sciences, working on paleobiology of South American carnivorous birds at La Plata Museum. He is teaching comparative vertebrate anatomy at UNLP. He is (co-)author of seven scientific papers.
- Author(s)Claudia Tambussi,Federico Degrange
- Date of Publication24/12/2012
- SubjectEarth Sciences
- Series TitleSpringerBriefs in Earth System Sciences
- Place of PublicationDordrecht
- Country of PublicationNetherlands
- Content Note16 black & white illustrations, 7 colour illustrations, 3 black & white tables, biography
- Weight207 g
- Width155 mm
- Height235 mm
- Spine10 mm
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