The fossilized skull of a bird called Vegavis, which lived in the Antarctic some 68.7 million years ago, confirms it was an early member of the waterfowl group. However, the skull also suggests ...

The Cretaceous extinction wiped out about 65% of all species ... and during the following Neogene Period the world was cooler and the effects of seasonality were more widely felt. Many modern plants ...

Whether or not the asteroid or comet that carved the Chicxulub crater caused the extinction of more than half the planet's species at the end of the Cretaceous remains a matter of scientific debate.

This is possibly the best known of the five largest mass extinction events to effect Earth. The devastation caused by the impact included massive tsunami-like surges, thus-far known only from marine ...

The Permian extinction saw the loss of 80 to 96 percent of all marine species. In the Cretaceous event ... would certainly have had dramatic effects, throwing up global dust clouds, perhaps ...

The Cretaceous-Paleogene (K-Pg) extinction event that occurred 66 million years ago is believed to have been caused by an asteroid crashing into Earth just off the Yucatan peninsula in south ...

They found that, unlike pre-modern birds that existed during the Jurassic and Cretaceous periods (201.3 million to 66 million years ago), V. iaai has features that are similar to birds that exist ...

The so-called Cretaceous-Paleogene extinction (or K-Pg extinction ... and sent shockwaves through the Earth's crust. The immediate effects were devastatingmassive wildfires, tsunamis, and a ...

Scientists have discovered levels of iridium 30 times greater than average in the Cretaceous/Tertiary (KT) boundary, the layer of sedimentary rock laid down at the time of the dinosaur extinction.

My research interests are broad and range from the influence of the K/T mass extinction on bivalve evolution, to the taphonomy and historical ecology of Holocene benthic mollusks in the Chesapeake Bay ...