Paleontologists have described a new genus and species of stem-chelydrid turtle using complete fossilized shells and associated material found in the Early...
Members of the metatherian genus Swaindelphys were previously known from Swain Quarry in south-central Wyoming and the Nacimiento Formation in the San...
A small mixodectid mammal called Mixodectes pungens had skeletal features adapted to living in trees, largely dined on leaves, and weighed about 1.3 kg,...
Paleobotanists have described nine new species of the grape family Vitaceae on the basis of 60- to 19-million-year-old fossil seeds discovered in four...
Paleontologists from Denver Museum of Nature & Science, Kent State University, the University of Michigan and City University of New York have discovered...
Paleontologists have described a new species of the extinct lamniform shark genus Palaeohypotodus based on 17 fossilized teeth found in Alabama, the United...
Paleontologists have described a new genus and species of tropicbird from a fossilized partial skeleton found in New Zealand. The fossil represents the...
The evolution of life on Earth has changed dramatically at tens of million-year time scales. However, the causal mechanisms of these changes remain unclear....
One of the two new species, Kumimanu fordycei, weighed up to 160 kg and may have been the largest penguin ever to have lived, according to Bruce Museum...
The sea cows originated in the Tethys Sea, between southern Europe and northern Africa, during the latest part of the Paleocene epoch, according to a new...
Atractosteus grandei lived less than 1,500-2,500 years after the Chicxulub asteroid impact, an event that is widely accepted as a major cause behind the...
Paleontologists have found insect borings in a fruit fossil of the genus Cocos (coconuts) from the Paleocene Cerrejón Formation of Colombia. Their findings...
The 31-km- (19.2-mile) wide Hiawatha impact structure is located beneath Hiawatha Glacier in northwestern Greenland.
Photo from fieldwork at the edge of...
About 66 million years ago, a massive asteroid crashed into Earth near the site of the small town of Chicxulub in what is now Mexico. The impact eradicated...
Paleontologists have identified three new species of placental mammals called condylarths (archaic ungulates) from fossils found in Wyoming, the United...
The newly-discovered fossilized footprints were made by at least two mammalian species around 58 million years ago in a brackish water lagoon in what is...
Paleontologists in the United States have discovered and analyzed the fossilized remains from two species of Purgatorius, the oldest genus in a group of...
Dr. Laura Chornogubsky, a paleontologist in the Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’ and CONICET, has described one new genus...
Lush green forests grew on Ellesmere and Axel Heiberg islands of the Canadian High Arctic 56 million years ago (Paleocene-Eocene boundary), according to...
Paleontologists in New Zealand have uncovered the fossilized bones from an extinct penguin that swam the oceans between 62.5 and 60 million years ago....
