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Wiwaxia

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Wiwaxia

Wiwaxia fossil

Wiwaxia is a genus of soft-bodied animal from the Cambrian Burgess Shale.

DescriptionEdit

Wiwaxia was bilaterally symmetrical. It appeared as a featureless blob with two rows of spines down its "back". Fossils suggest it grew from 2 to 5 centimeters long, but its height remains uncertain.[1]

DiscoveryEdit

Although fragments of Wiwaxia had been found as early as 1899, Charles Walcott described it fully from the Burgess Shale in 1911 as a type of worm. Its exact classification remains uncertain.[2]

ReferencesEdit

  1. Conway Morris, S. (1985). "The Middle Cambrian metazoan Wiwaxia corrugata (Matthew) from the Burgess Shale and Ogygopsis Shale, British Columbia, Canada". Philosophical Transactions of the Royal Society of London B 307 (1134): 507–582. Bibcode 1985RSPTB.307..507M. doi:10.1098/rstb.1985.0005. JSTOR 2396338. edit
  2. Walcott, C.D. (1911). "Middle Cambrian annelids. Cambrian geology and paleontology, II". Smithsonian Miscellaneous Collections 57: 109–144

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