Mosasaurs Gave Birth to Their Offspring in Open Ocean, Say Paleontologists

April 12, 2015 1:29 AM

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A team of paleontologists led by Dr Adam Behlke of Yale University says that very large marine reptiles called mosasaurs did not lay eggs on beaches, and that newborn mosasaurs likely did not live in sheltered nearshore nurseries.

Artist’s interpretation of the study’s principal conclusions, illustrating the mosasaur Clidastes liodontus giving live birth in an open ocean approximately 85 million years ago, beneath the shadow of the toothed stem bird Ichthyornis. Image credit: Julius T. Csotonyi.

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