Animal origins: metazoans, Ediacaran fauna, the Burgess fauna
Animal origins: metazoans, Ediacaran fauna, the Burgess fauna
Animal origins: metazoans, Ediacaran fauna, the Burgess fauna
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Genus: Hallucigenia sparsa<br />
An onychophoran ("velvet Worm")<br />
Arthropods of <strong>the</strong> <strong>Burgess</strong> Shale<br />
• Arthropods comprise 40% of <strong>the</strong> known fossils in <strong>the</strong><br />
<strong>Burgess</strong> Shale<br />
• They are characterized by segmented bodies,<br />
multiple-paired appendages, well-developed head,<br />
thorax and tail, extensive sensory and feeding<br />
structures<br />
• Skeletons are chitinous with varying amounts of<br />
organic matter and CaCO 3<br />
<strong>Burgess</strong> Shale Trilobites<br />
Genus: Marrella splendens<br />
A primitive Trilobite-like Arthropod