Quantcast

Latest Eutheria Stories

Saber-toothed Fossil Sheds New Light On Ancient Mammals
2011-11-03 06:58:59

A remarkable 94-million-year-old fossil found in South America is shedding new light on the ancient history of mammals. The specimen, dubbed Cronopio dentiacutus, is one of the very few mammal fossils to come out of South America from the era when dinosaurs ruled the Earth.    The mouse-sized creature had a long snout, dagger-like canines and a powerful set of muscles it used to chew its insect food. The mammal is a dryolestoid, an extinct group of animals distantly...

science-082511-001
2011-08-25 11:05:58

  A well-preserved fossil discovered in China provides new evidence that the split between placental mammals and marsupials may have occurred 35 million years earlier than previously believed, according to a new study published Wednesday in the journal Nature. The scientists, led by Carnegie Museum of Natural History paleontologist Zhe-Xi Luo, said the discovery fills an important gap in the fossil record, and helps to calibrate modern, DNA-based methods of dating evolution. The...


Word of the Day
holluschickie
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'
Related