Cambrian Problematic Fossils is a Browse By group of the Nature Atlas that gathers enigmatic fossils of the Cambrian whose relationship to living groups is unsettled. An entry belongs here when its own cited article states that it is a Cambrian fossil of uncertain affinity. It excludes Ediacaran and Precambrian problematic fossils. Members are placed by the classification their cited article gives, not by common name or appearance alone.
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Wikipedia: Volborthella
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Volborthella is an animal of uncertain classification, whose fossils pre-date 530 million years ago.
Wikipedia: Margaretia
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Margaretia is a frondose organism known from the middle Cambrian Burgess Shale and the Kinzers Formation of Pennsylvania.
Wikipedia: Erytholus
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Erytholus is a form genus for problematic alleged fossils of Cambrian age in South Australia.
Wikipedia: Mongolitubulus
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Mongolitubulus is a form genus encapsulating a range of ornamented conical small shelly fossils of the Cambrian period.
Climactichnites (Wikipedia)
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Climactichnites is an enigmatic, Cambrian fossil formed on or within sandy tidal flats around 510 million years ago.
Dakorhachis (Wikipedia)
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Dakorhachis is a Cambrian genus of enigmatic worm, from the Weeks Formation of Canada.
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