Not exact matches
QUT evolutionary biologist Dr Matthew Phillips
used molecular dating from DNA sequences to challenge the dominant scientific theory that
placental mammals diversified 20 million years before dinosaurs became extinct.
We plan on
using it to study other large - scale evolutionary patterns such as how early
placental mammals dispersed across the continents via land bridges that no longer exist today.»
He cites a recent study, for instance, conducted by an international team of molecular biologists that
used the DNA of living
placental mammals to estimate that their ancestors originated more than 100 million years ago.