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Press Release 13-022

Placental Mammal Diversity Blossomed After Age of Dinosaurs

Scientists build new 'tree of life' for placentals, visualize common ancestor

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Graphic rendering of the hypothetical placental ancestor, a small insect-eating animal.

Artist's rendering of the hypothetical placental ancestor, a small insect-eating animal.

Credit: Carl Buell


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Photo of researcher examining fossils in a lab

See a video about the new mammal 'tree of life' discovery.

Credit: AMNH

 

Diagram of new evolutionary tree for placental mammals.

The new evolutionary tree for placental mammals, combining phenomic and genomic data.

Credit: Stony Brook University/Luci Betti Nash


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Photo of a Cretaceous-age mammal scheleton uncovered in the Gobi Desert.

This shrew-sized Cretaceous-age mammal was uncovered in the Gobi Desert.

Credit: AMNH/S. Goldberg, M. Novacek


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Print screen from MorphoBank showing text and images describing traits.

The phenomic matrix constructed in MorphoBank, including images describing traits.

Credit: Image of Hapalops elongatus by artist John Sibbick, reused courtesy of D. Norman


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Cover of journal Science

The research team's results are described in the Feb. 8 issue of the journal Science.

Credit: Copyright AAAS 2013