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Sirenians in southern Australia—first fossil record
Alcheringa: An Australasian Journal of Palaeontology, 2006The anterior half of the right mandible of a dugong is described from the early Pliocene Loxton Sands of the Murray Basin in South Australia. This is the oldest dugong fossil known in Australia, and, although not identifiable, is possibly antecedent to or the oldest representative of the genus Dugong.
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Utility and Design of Aerial Surveys for Sirenians
2012[Extract] Aerial surveys have been used as a tool to assess aspects of sirenian biology for three decades. Although aerial surveys can be a useful method of assessing sirenian population distribution and abundance, they can be logistically difficult and expensive and may not always be the appropriate method.
Reynolds, John E. +3 more
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Human Interactions with Sirenians (Manatees and Dugongs)
2017There are three extant sirenian species of the Trichechidae family and one living Dugongidae family member. Given their close ties to coastal and often urbanized habitats, sirenians are exposed to many types of anthropogenic activities that result in challenges to their well-being, poor health, and even death.
Robert K. Bonde, Mark Flint
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The readaptation of Eocene sirenians to life in water
Historical Biology, 2000Eocene sirenians and cetaceans simultaneously and independently evolved similar morphological adaptations to aquatic life. These included increased flexibility in the sacral region, reduction and loss of hind limbs, shortening of the neck, increased skeletal mass, and other modifications.
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