9783540649960 - development of the cetacean nasal skull (advances in anatomy, embryology and cell biology, 149, band 149) von klima, milan (2 Ergebnisse)
Sprache: Englisch
Verlag: Springer, 1999
Serie: Advances in Anatomy, Embryology and Cell Biology, Buch 62 von 173. Buch 62 von 173 - Advances in Anatomy, Embryology and Cell Biology
- Softcover
Anbieter: Ria Christie Collections, Uxbridge, Vereinigtes KönigreichRia Christie Collections
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EUR 226,84
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Zustand: New. In.
Sprache: Englisch
Verlag: Springer, 1999
Serie: Advances in Anatomy, Embryology and Cell Biology, Buch 62 von 173. Buch 62 von 173 - Advances in Anatomy, Embryology and Cell Biology
- Softcover
Anbieter: AHA-BUCH GmbH, Einbeck, DeutschlandAHA-BUCH GmbH
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Neu
EUR 221,53
EUR 61,24 VersandVersand von Deutschland nach USAAnzahl: 1 verfügbar
Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Morphogeny of the nasal skull was investigated in 92 embryos of 13 species of Cetacea. Compared to the original nasal capsule of land mammals, the nasal structures of Cetacea show many weighty transformations. As a result, the nostrils are translocat…ed from the tip of the snout to the vertex of the head. Several structures of the embryonic nasal skull remain preserved even in adult cetaceans. The translocation of the nostrils to the highest point of the surfacing body is among the most perfect adaptations of cetaceans to the aquatic life habits. The morphogeny of the nasal skull suggests that all cetaceans are of common origin and form a single monophyletic order. The hitherto usual division of this order into two suborders, Mysticeti and Odontoceti, appears to be unsubstantiated. Rather, at least three closely related superfamilies should be distinguished within the order Cetacea, viz., Balaenopteroidea, Physeteroidea, and Delphinoidea. The results are in a conspicuous accordance with the most recent molecular biological investigations on this topic.
