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Showing results for tags 'mckay group'.
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A rangeomorph holdfast trace fossil from the Ediacara formation, Rawnsley quartzite of the Flinders Range, South Australia. This specimen is Medusina mawsoni, so called because it was until recently thought to be a jellyfish, but is now believed to be the attachment point of a fractal rangeomorph as Charniodiscus is the point of anchorage for Charnia sp. This one may have been the holdfast point for some species of Rangea. The diameter of the outer circle is 1.5 cm and the fossil is estimated to be 555 million years old.
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- achlysopsis
- acorn worm
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From the album: Nautiloid’s Trilobite Collection
This bug comes from the Upper Ordovician McKay Group of British Columbia, Canada. The abundant and well preserved trilobite fauna of the McKay group represents a deep water biofacies known as the Wujiajiania biofacies. Most McKay group trilobites are collected from a narrow interval of richly fossiliferous strata.© Owen Yonkin 2022
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From the album: Nautiloid’s Trilobite Collection
This is most likely a species in the genus Orygmaspis. From the Upper Cambrian McKay Group of Cranbrook, British Columbia. Acquired from an old collection.© Owen Yonkin 2022
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- cambrian
- mckay group
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Elvinia roemeri is an important zonal index species throughout Laurentia, but almost invariably it occurs as disarticulated sclerites. Complete specimens are rare except in the McKay Group. The species was originally described by Shumard (1861) as a species of Dikelocephalus. References: Chatterton, B.D.E., and Ludvigsen, R. 1998. Upper Steptoean (Upper Cambrian) trilobites of the McKay Group of southeastern British Columbia, Canada. Journal of Paleontology. The Paleontological Society Memoir, 49: 1-43. Chatterton, B.D.E. and Gibb, S. 2016. Furongian (Upper Cambrian) trilobites from the McKay Group, Bull River Valler, near Cranbrook, southeastern British Columbia, Canada. Paleontographica Canadiana 35: 1-275. Shumard, B. F 1861. The primordial zone of Texas with descriptions of new fossils. American Journal of Science, s. 2, 32:213-221.
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- british columbia canada
- elvinia roemeri
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I recently received a nice trilobite from the Upper Cambrian McKay Group in BC, Canada. I found this little guy in the back and wanted to extract him so I could display them together. It was hard since the plate was pretty thin and the two trilobites lied on top of each of on either side. So this little guy got a little beat up. Anyways, does anyone recognize the species? I am completely unfamiliar with the McKay Group.
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This big beauty was found as is, nearly perfect. Definitely one of my best finds.
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- bc
- mckay group
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I just received a trilobite from this area in a trade (Labiostria westropi.) and I would like to get a few more I have lots of complete Wheeler Shale trilobites, some microvertabrate fossils, upper Pierre Shale fossils, and more for trade. Please PM me if you have any of trilobites from the McKay group for trade Thanks!
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From the album: More Fossils
Stunning example of the asaphid trilobite Orygmaspis sp. nov. collected near Cranbrook, British Columbia by Chris Jenkins. This new species will be officially described in B.D.E Chatterton's upcoming monograph on the new Upper Cambrian localities. Specimen is rough 1.3cm long.
