Researchers exploring the South Atlantic Ocean identified dozens of new species, many with unusual shapes and adaptations for life in the deep sea.
Approximately 160 million years ago, during the Age of Dinosaurs, giant marine reptiles ruled the seas. One such creature, an ichthyosaur, swam in a sea near present-day Peterborough, England. This huge animal, shaped like a dolphin, was a quick swimmer that chased prey such as ammonites and squid for sustenance.
However, on this day, luck was not on its side.
A pliosaur, an even more imposing reptile with 5-inch-long (13-centimeter-long), dagger-like teeth, attacked the ichthyosaur from underneath, biting with such force during the struggle that the tip of one of its teeth broke off in the middle of the ichthyosaur’s vertebra. The ichthyosaur’s body fell in pieces to the ocean floor, where the pliosaur finished its meal—a vivid scene inspired by the contents of a drawer in the Peabody’s Division of Vertebrate Paleontology.
An international team of researchers including our Department of Geography has discovered a vast geological structure hidden beneath the East Antarctic Ice Sheet. The findings are published in the journal Nature Geoscience.
The structure is made up of a system of enormous subglacial basins buried in ice over three kilometers thick in parts.
Together, the basins form a giant fan-shaped structure on a continental scale. The team have named it the East Antarctic Fan-shaped Basin Province.