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Latest Peter Wilf Stories

Iconic Australasian Tree Fossils Found In South America
2014-01-09 15:06:30

Penn State Today in Australia they call it Kauri, in Asia they call it Dammar, and in South America it does not exist at all unless planted there; but 52 million years ago the giant coniferous evergreen tree known to botanists as Agathis thrived in the Patagonian region of Argentina, according to an international team of paleobotanists, who have found numerous fossilized remains there. "These spectacular fossils reveal that Agathis is old and had a huge range that no one knew about --...

Buried Leaves Reveal Precolonial Eastern Forests
2013-11-14 08:35:58

Penn State Sediment behind milldams in Pennsylvania preserved leaves deposited just before European contact that provide a glimpse of the ancient forests, according to a team of geoscientists, who note that neither the forests nor the streams were what they are today. "Milldams were built from the late 1600s to the late 1800s in Pennsylvania and other parts of the east," said Peter Wilf, professor of geosciences, Penn State. "We can't get information from historic records on what the...

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2009-11-11 07:40:12

How revising an ancient species can change what we know of a lineage's historical distribution and the climate in which it lived Fossil plants are windows to the past, providing us with clues as to what our planet looked like millions of years ago. Not only do fossils tell us which species were present before human-recorded history, but they can provide information about the climate and how and when lineages may have dispersed around the world. Identifying fossil plants can be tricky,...

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2006-08-29 12:14:41

The recovery of biodiversity after the end-Cretaceous mass extinction was much more chaotic than previously thought, according to paleontologists. New fossil evidence shows that at certain times and places, plant and insect diversity were severely out of balance, not linked as they are today. The extinction took place 65.5 million years ago. Labeled the K-T extinction, it marks the beginning of the Cenozoic Era and the Paleocene Epoch. "The K-T caused major extinction among North American...

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2005-06-15 21:38:38

South America has the most biodiversity of any major region today and according to an international team of researchers, that biodiversity began at least 52 million years ago. "What defines terrestrial ecology is plant insect interactions," says Dr. Peter Wilf, assistant professor of geosciences and the John T. Ryan Jr. Faculty Fellow. "But there is very little information about the history of insects eating plants in South America, despite the tremendous number of plant and animal species...


Word of the Day
barratry
  • The offense of persistently instigating lawsuits, typically groundless ones.
  • An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
  • Sale or purchase of positions in church or state.
This word ultimately comes from the Old French word 'barater,' to cheat.
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