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Co-ossified vertebrae of mosasaurs and cetaceans: implications for the mode of locomotion of extinct marine reptiles
Mulder, E.W.A. (2001). Co-ossified vertebrae of mosasaurs and cetaceans: implications for the mode of locomotion of extinct marine reptiles. Paleobiology 27(4): 724-734. dx.doi.org/10.1666/0094-8373(2001)027<0724:COVOMA>2.0.CO;2
In: Paleobiology. PALEONTOLOGICAL SOC INC: Lawrence KS etc.. ISSN 0094-8373, more
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  • Mulder, E.W.A.

Abstract
    Co-ossified pygal land caudal vertebrae in Late Cretaceous mosasaurs from the southeast Netherlands, northeast Belgium, and North America are compared with lumbar and caudal vertebrae from fossil and extant whales. Both infectious spondylitis and idiopathic vertebral hyperostosis afflicted these marine tetrapods. The causes of the infectious disease and of the idiopathic disease are similar in the compared life forms. The location of idiopathic hyperostosis along the vertebral Column implicates axial locomotion in mosasaurs, as in whales.

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