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Draft:Tulip Beds

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Tulip Beds
Stratigraphic range: Middle Cambrian (Miaolingian)
508 Ma
Holotype specimen of Siphusauctum gregarium, the namesake organism of the Tulip Beds
TypeBed
Unit ofCampsite Cliff Shale Member
AreaTwo outcrops 0.2 km (0.12 mi) apart
Thickness40 cm (16 in)
Lithology
PrimaryShale
Location
Coordinates51°24.1′N 116°27.4′W / 51.4017°N 116.4567°W / 51.4017; -116.4567
RegionBritish Columbia, Canada
Country Canada
ExtentVery limited
Type section
Named forSiphusauctum gregarium

The Tulip Beds is a fossil locality within the larger Burgess shale that is located in Yoho National Park. The site is a smaller member of the larger Campsite Cliff Shale Member, which exists above the Yoho River Limestone Member, on top of Mount Stephen. The locality is dated to the Miaolingian epoch of the Cambrian period, around 508 million years old. The site represents one of the more recently discovered localities from the Burgess Shale, with it being first uncovered in 1983. Fossils from the Tulip Beds are found within two separate outcrops, the S7 outcrop and the AC outcrop, with the former being discovered first. The Tulip Beds have yielded plentiful fossils, with up too 2,553 fossil specimens have been collected from the two outcrops since the localities discovery. The majority of the fossils (up to 70%) are known from the S7 outcrop, with the majority of the collecting occurring between 1983-2010. The locality gained its name due to the copious amount of fossils from the area belonging to Siphusauctum gregarium, a species of stem-group ctenophore colloquially known as the "Tulip Animal".




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