Chengjiang Fossils Death Assemblage with Multiple Vetucola and Trilobites

Vetulicolia; Vetulicola cuneata Trilobites; Wutingaspis (?), Palaeolenus sp.

Geological Time: Early Cambrian (~525 million years ago)

Size (25.4mm=1 inch): 40 mm long by 19 mm across on an 85 mm by 45 mm matrix

Fossil Site: Chengjiang Biota, Quiongzhusi Section, Yu’anshan Member, Heilinpu Formation Mafang Village, Haikou County, Yunnan Province, China

Code: CJF419

Price: $895.00 - sold


VetulicoliaDescription: This unusual fossil is an aasemblage with a pair of examples of Vetulicola cuneata (also spelled cuneatus), a member of the Vetulicolians, an enigmatic group which some scientists place in their own phylum (Phylum Vetulicolia). They are thought to have been swimmers that either were filter feeders or detritivores. One researcher places them with the Urochordates, Vetulicola cuneatagiving them strong affinity with the Phylum Chordata. At present, there is no agreement as to their systematic placement. This specimen comes from the Chengjiang Boita, and is thus slightly older than the Burgess Shale Fauna of British Columbia. Notice the diamond-shaped openings that allowed water to pass out of the interior. They served either a respiratory or filter-feeding function. There is a fine negative example of a trilobite that appears to be Wutingaspis, as well as a number of Palaeolenus fragments as well . This is the first example of multiple Vetulicola I have been able to secure; their association with the trilobites makes for a most unusual specimen.

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