Results 171 to 180 of about 3,987 (209)

The modern Sirenia: their distribution and status

Biological Journal of the Linnean Society, 1973
The modern Sirenia have been little studied because of their present rarity and the difficulty of observing fully aquatic animals even though so large. These mammals are the only large aquatic herbivores. One of the three modern forms, Steller's seacow, is recently extinct; the dugong of the tropical Indo-Pacific region is now rare almost everywhere ...
G. C. L. BERTRAM, C. K. RICARDO BERTRAM
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Review of Early Sirenia

Systematic Zoology, 1976
Savage, R. J. G. (Department of Geology, University of Bristol, University Walk, Bristol, England, BS8 1TR) 1976. Review of early Sirenia. Syst. Zool. 25:344-351.-Advances in our knowledge of fossil sirenians over the past four decades are reviewed and a cladistic phylogeny of the order presented. Salient features of the recently re-prepared type skull
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Ecology and Conservation of the Sirenia

2011
Dugongs and manatees, the only fully aquatic herbivorous mammals, live in the coastal waters, rivers and lakes of more than 80 subtropical and tropical countries. Symbols of fierce conservation battles, sirenian populations are threatened by multiple global problems. Providing comparative information on all four surviving species, this book synthesises
Marsh, Helene, O'Shea, Thomas J., Reynolds, John E.   +2 more
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Breaking constraint: axial patterning in Trichechus (Mammalia: Sirenia)

Evolution & Development, 2014
SUMMARYMeristic variation is often limited in serially homologous systems with high internal differentiation and high developmental modularity. The mammalian neck, an extreme example, has a fixed (at seven) count of diversely specialized segments. Imposition of the mammalian cervical constraint has been tentatively linked to the origin of the diaphragm,
Emily A, Buchholtz, Kaisa L, Wayrynen, Iris W, Lin   +2 more
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Das Femur vonEotheroides libyca (Owen) (Sirenia)

Paläontologische Zeitschrift, 1967
Aus dem Ober-Eozan von Qasr el Sagha, Fayum, Agypten, wurde erstmals ein Femur vonEotheroides libyca geborgen. In der spezifischen Eigenart seines Baues erscheint sein Reduktionsgrad von dem des oligozanenHalitherium schinzi wesentlich abweichend. Das besagt, das die eozanen Sirenen zwar keine auserlich hervortretenden hinteren Extremitaten besessen ...
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A Phylogenetic Analysis of the Sirenia

1994
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Sirenia

2010
Daryl P. Domning, Iyad S. Zalmout, Philip D. Gingerich   +2 more
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Sirenia

2015
Michael T. Walsh, Martine de Wit
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Sirenia

2018
Helen Owen, Mark Flint, Martine de Wit
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Manatees And Dugongs Order Sirenia, Family Trichechidae

2009
Abstract There are 2 families of sirenians: the Trichechidae, with 3 species, one of which oc- curs in Central America, and the Dugongidae, with a single species found only in the Old World. These aquatic mammals are rotund, with bulbous, bristly noses, forelimbs modified into flippers, and horizontally flattened tails.
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