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E.g., 10/04/2015
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  • News

    Giant asteroid may have triggered deadly volcano eruptions

    The demise of the dinosaurs may have been the result of a coordinated one-two punch.

    Eruption activity in a volcanic region in present-day India appears to have increased around the time of the asteroid impact that preceded the Cretaceous extinction, scientists report in the Oct. 2 Science. The close timing between the two events leads the scientists to suggest that...

    10/01/2015 - 14:00 Earth, Paleontology
  • Introducing

    New dinosaur identified in Alaska

    Arctic dinosaurs have a new poster child.

    Ugrunaaluk kuukpikensis, a new species of duck-billed dinosaur, lived in what is now Alaska some 69 million years ago, scientists report September 22 in Acta Palaeontologica Polonica.

    A geologist first discovered Ugrunaaluk fossils weathering out of a bluff in...

    09/24/2015 - 13:17 Paleontology
  • News

    Earth got first whiff of oxygen 3.2 billion years ago

    The first oxygen-producing life-forms appeared hundreds of millions of years earlier than previously known, new evidence suggests.

    Analyzing iron and uranium embedded inside primeval rocks, researchers discovered that shallow seawater contained whiffs of dissolved oxygen around 3.2 billion years ago. The new date places the...

    09/08/2015 - 08:00 Oceans, Paleontology, Evolution
  • The –est

    Earliest sea scorpion discovered in Iowa

    Giant scorpions may have terrorized the seas some 460 million years ago.

    The species of sea scorpion, Pentecopterus decorahensis, stretched up to 1.7 meters long — almost as long as a twin-sized bed. Scientists unearthed more than 150 fragmentary remnants from the sandy shale of an impact crater in what is now Iowa.

    The sea predator may have...

    09/08/2015 - 06:00 Paleontology, Animals
  • Science Ticker

    New dolphin fossil makes a splash

    Six million years ago, a relative of modern river dolphins once frolicked along Panama's Caribbean shores, researchers report September 1 in PeerJ. Unearthed in 2011, the fossilized skull, teeth and jaw bones belong to a novel dolphin species (Isthminia panamensis). 

    Researchers originally rescued the fragile specimen from...

    09/02/2015 - 06:00 Paleontology, Animals, Evolution
  • News in Brief

    New dolphin fossil makes a splash

    Six million years ago, a relative of modern river dolphins frolicked along Panama’s Caribbean shores, researchers report September 1 in PeerJ. Unearthed in 2011, a fossilized skull, jaw and other bones belong to a new dolphin species (Isthminia panamensis).

    Researchers rescued the specimen from a coastal area battered by...

    09/02/2015 - 06:00 Paleontology, Animals, Evolution
  • News

    Volcanic activity convicted in Permian extinction

    The biggest catastrophe in the history of life on Earth resulted from one of the most titanic volcanic outpourings on record, new research concludes.

    At the close of the Permian period around 252 million years ago, more than 90 percent of all marine species and roughly 75 percent of all land species vanished. New high-precision analysis of ancient lavas determines this extinction...

    08/28/2015 - 14:00 Earth, Paleontology
  • Reviews & Previews

    ‘Prehistoric Predators’ is a carnival of ancient dinosaurs, mammals and more

    dino bookPrehistoric Predators
    Brian Switek and Julius Csotonyi
    Applesauce Press, $19.95

    The great carnivores of the past have come a long way. Formerly sluggish,...

    08/22/2015 - 09:00 Animals, Paleontology
  • Reviews & Previews

    Fossils illustrate evolution of life

    The Story of Life in 25 Fossils
    Donald R. Prothero...

    07/26/2015 - 09:00 Paleontology, Animals
  • News

    Sudden heat spikes did in Ice Age’s mammoth mammals

    Rapid climate change put mega-sized Ice Age mammals on the ropes before ancient humans delivered the final blow, new research indicates.

    During Earth’s last glacial period, around 12,000 to 110,000 years ago, woolly mammoths, sedan-sized armadillos and other massive mammals walked the land. Over time, these megafauna mostly died out. The instigator of these extinctions has become a topic...

    07/23/2015 - 14:27 Paleontology, Climate