Burgessia
bella
Phylum
Arthropoda,
Order Bugessiidae
Geological
Time: Early Cambrian (~520 million years ago)
Size: 16
mm long X 10 mm wide
Fossil
Site: Burgess Shale Stephen Formation, Burgess Pass, British Columbia,
Canada
Description:
Bugessia bella derives its genus name from the location that
also
lent it name to this spectacular
window on early life and the Cambrian Explosion. It was presumably
a benthic organism that made a living crawling on the seafloor.
It
falls
within the
arachnomrphs,
and so is related to both the chelicerates and trilobites.
Note the antenna, central gut, telson, and partial legs seen within
the
carapace. This wonderful example shows all the major features of
the taxon in incredible detail for a specimen more than a half
billion years of age.
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