'Walking cactus' rewrites arthropod odyssey
PhysOrg.com [USA], February 23, 2011
Fossils of a bizarre animal dubbed the "walking cactus" have shed light
on the evolution of crabs and spiders, Chinese researchers reported in
the journal Nature on Wednesday. Specimens found in 2006 in rocks in the
Jianshan area near Haikou, in southwestern China's Yunnan province, have
revealed an "armoured lobopodian" that lived nearly half a billion years
ago. This was during the so-called Cambrian Explosion, an astonishing
burst of biodiversity that determined the future of species which are
alive today. Measuring around six centimetres (2.4 inches) long, it
comprises a central spine that resembles a skinny, soft-bodied worm,
from which 10 pairs of spiny and apparently jointed limbs emerge.
http://www.physorg.com/news/2011-02-cactus-rewrites-arthropod-odyssey.html
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