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'Great Dying' changed marine life forever
About 95% of the Earth's marine species and 70% of its land species were
wiped out during a mass extinction about 250 million years ago, according to
Australian and US researchers.
... scientists at James Cook University in Townsville, Queensland and the
Field Museum in Chicago... report in today's issue of the journal Science
how they came across the culling of species while examining figures on the
numbers of marine life forms in communities over the past 540 million years.
Simple species that did not move or search for food were largely wiped out,
More complex life forms such as crabs and snails that went looking for food
The researchers did not go into what caused the mass extinction.
But using a new palaeobiology database, they gave what they say are the most
exhaustive details ever assembled of its effect...
Read more at:
GIS / Archaeologist http://www.geocities.com/dannsdinosaurs
Melbourne, Australia http://heretichides.soffiles.com