Marble Canyon (Canadian Rockies)

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Marble Canyon
Marble Canyon, Kootenay National Park, British Columbia, 2025-07-11 09.jpg
Marble Canyon
Canada British Columbia relief location map.jpg
Red pog.svg
Marble Canyon
Geography
Country Canada
Province British Columbia
Regional district Kootenay Land District [1]
Coordinates 51°10′59″N116°08′03″W / 51.18306°N 116.13417°W / 51.18306; -116.13417   [1]

Marble Canyon surrounds Tokumm Creek just above its confluence with the Vermilion River, at the north end of Kootenay National Park in the Canadian Rockies of British Columbia. [1] South of the canyon on Highway 93 is Numa Falls on the Vermilion River.

Contents

As described by Canadian Alpine Journal in 1913, "[Tokumm Creek] joins Vermilion River through a magnificent gorge, or box canyon, so narrow that at several places the fissure, for it seems little more than a crack in the rock strata, is bridged by great boulders that have become wedged across it. It was a feature well worth seeing." [2]

Cambrian Lagerstatte

A major new find was announced in early 2014 of fossilized Cambrian soft-bodied organisms in or near Marble Canyon that rival or even surpass the nearby Burgess Shale fossil site in size and preservation. The report said that 22% of the observed species found in the initial excavation were new to science. Additionally, several species previously known only from Chinese Lagerstätten, created millions of years earlier, were also found at the site. [3] The exact location of the site was kept confidential to avoid damage to the site. [4]

Species discoveries

Cambroraster falcatus 20200329 Cambroraster falcatus.png
Cambroraster falcatus
Tokummia katalepsis Tokummia.png
Tokummia katalepsis
Fibulacaris nereidis Fibulacaris nereidis.jpg
Fibulacaris nereidis
Balhuticaris voltae Balhuticaris.png
Balhuticaris voltae
Yawunik kootenayi Y. kootenayi.png
Yawunik kootenayi
Metaspriggina walcotti Metaspriggina NT small.jpg
Metaspriggina walcotti

Based on Caron et al. (2014) [3] unless otherwise noted. Fossils first described from Marble Canyon are written as bold.

References

  1. 1 2 3 "Marble Canyon". BC Geographical Names . Retrieved 2024-12-17.
  2. ↑ Canadian Alpine Journal , vol V, 1913, pp. 100–137
  3. 1 2 Caron, Jean-Bernard; Gaines, Robert R.; Aria, Cédric; Mángano, M. Gabriela; Streng, Michael (11 February 2014). "A new phyllopod bed-like assemblage from the Burgess Shale of the Canadian Rockies". Nature Communications. 5: ncomms4210. Bibcode:2014NatCo...5.3210C. doi: 10.1038/ncomms4210 . PMID   24513643.
  4. ↑ "Mighty Burgess Shale fossil site discovered in Kootenay National Park". Royal Ontario Museum. February 11, 2014.
  5. ↑ Moysiuk, J.; Caron, J.-B. (2019-08-14). "A new hurdiid radiodont from the Burgess Shale evinces the exploitation of Cambrian infaunal food sources". Proceedings of the Royal Society B: Biological Sciences. 286 (1908): 20191079. doi:10.1098/rspb.2019.1079. ISSN   0962-8452. PMC   6710600 . PMID   31362637.
  6. ↑ Caron, J.-B.; Moysiuk, J. (2021). "A giant nektobenthic radiodont from the Burgess Shale and the significance of hurdiid carapace diversity". Royal Society Open Science. 8 (9): 210664. Bibcode:2021RSOS....810664C. doi:10.1098/rsos.210664. ISSN   2054-5703. PMC   8424305 . PMID   34527273.
  7. ↑ Moysiuk, Joseph; Caron, Jean-Bernard (2025-05-14). "Early evolvability in arthropod tagmosis exemplified by a new radiodont from the Burgess Shale". Royal Society Open Science. 12 (5): 242122. doi:10.1098/rsos.242122. PMC   12076883 .
  8. ↑ Aria, Cédric; Caron, Jean-Bernard (2017). "Burgess Shale fossils illustrate the origin of the mandibulate body plan" . Nature. 545 (7652): 89–92. Bibcode:2017Natur.545...89A. doi:10.1038/nature22080. ISSN   1476-4687. PMID   28445464. S2CID   4454526.
  9. ↑ Izquierdo-López, Alejandro; Caron, Jean-Bernard (2019). "A possible case of inverted lifestyle in a new bivalved arthropod from the Burgess Shale". Royal Society Open Science. 6 (11): 191350. Bibcode:2019RSOS....691350I. doi:10.1098/rsos.191350. PMC   6894550 . PMID   31827867.
  10. ↑ Izquierdo‐López, Alejandro; Caron, Jean‐Bernard (2021). Zhang, Xi‐Guang (ed.). "A Burgess Shale mandibulate arthropod with a pygidium: a case of convergent evolution" . Papers in Palaeontology. 7 (4): 1877–1894. doi:10.1002/spp2.1366. ISSN   2056-2799. S2CID   236284813.
  11. ↑ Izquierdo-López, Alejandro; Caron, Jean-Bernard (2022-07-15). "Extreme multisegmentation in a giant bivalved arthropod from the Cambrian Burgess Shale". iScience. 25 (7): 104675. Bibcode:2022iSci...25j4675I. doi:10.1016/j.isci.2022.104675. ISSN   2589-0042. PMC   9283658 . PMID   35845166.
  12. ↑ Izquierdo-López, Alejandro; Caron, Jean-Bernard (2022). "The problematic Cambrian arthropod Tuzoia and the origin of mandibulates revisited". Royal Society Open Science. 9 (12): 220933. Bibcode:2022RSOS....920933I. doi:10.1098/rsos.220933. PMC   9727825 . PMID   36483757.
  13. ↑ Aria, Cédric; Caron, Jean-Bernard (2015-06-03). "Cephalic and Limb Anatomy of a New Isoxyid from the Burgess Shale and the Role of "Stem Bivalved Arthropods" in the Disparity of the Frontalmost Appendage". PLOS ONE. 10 (6): e0124979. Bibcode:2015PLoSO..1024979A. doi: 10.1371/journal.pone.0124979 . ISSN   1932-6203. PMC   4454494 . PMID   26038846.
  14. ↑ Aria, Cédric; Caron, Jean-Bernard; Gaines, Robert (2015). Zhang, Xi-Guang (ed.). "A large new leanchoiliid from the Burgess Shale and the influence of inapplicable states on stem arthropod phylogeny". Palaeontology. 58 (4): 629–660. doi: 10.1111/pala.12161 . S2CID   86443516.
  15. 1 2 3 4 5 6 7 Nanglu, Karma; Caron, Jean-Bernard; Gaines, Robert R. (2020). "The Burgess Shale paleocommunity with new insights from Marble Canyon, British Columbia". Paleobiology. 46 (1): 58–81. doi: 10.1017/pab.2019.42 . ISSN   0094-8373.
  16. ↑ Aria, Cédric; Caron, Jean-Bernard (2019). "A middle Cambrian arthropod with chelicerae and proto-book gills" . Nature. 573 (7775): 586–589. Bibcode:2019Natur.573..586A. doi:10.1038/s41586-019-1525-4. ISSN   1476-4687. PMID   31511691. S2CID   202550431.
  17. 1 2 Mayers, Benjamin; Aria, Cédric; Caron, Jean‐Bernard (2019). Zhang, Xi‐Guang (ed.). "Three new naraoiid species from the Burgess Shale, with a morphometric and phylogenetic reinvestigation of Naraoiidae" . Palaeontology. 62 (1): 19–50. doi:10.1111/pala.12383. ISSN   0031-0239. S2CID   135331371.
  18. ↑ Bond, Andrew D.; Edgecombe, Gregory D. (2021). Zhang, Xi‐Guang (ed.). "Phylogenetic response of naraoiid arthropods to early–middle Cambrian environmental change". Palaeontology. 64 (1): 161–177. doi: 10.1111/pala.12516 . ISSN   0031-0239. S2CID   229454194.
  19. ↑ Morris, Simon Conway; Caron, Jean-Bernard (2014-08-01). "A primitive fish from the Cambrian of North America". Nature. 512 (7515): 419–422. Bibcode:2014Natur.512..419M. doi:10.1038/nature13414. ISSN   0028-0836. PMID   24919146. S2CID   2850050.
  20. ↑ Nanglu, Karma; Caron, Jean-Bernard; Conway Morris, Simon; Cameron, Christopher B. (2016-07-07). "Cambrian suspension-feeding tubicolous hemichordates". BMC Biology. 14 (1): 56. doi: 10.1186/s12915-016-0271-4 . ISSN   1741-7007. PMC   4936055 . PMID   27383414.
  21. ↑ Nanglu, Karma; Caron, Jean-Bernard (2018-01-22). "A New Burgess Shale Polychaete and the Origin of the Annelid Head Revisited". Current Biology. 28 (2): 319–326.e1. doi: 10.1016/j.cub.2017.12.019 . ISSN   0960-9822. PMID   29374441. S2CID   2553089.
  22. ↑ Osawa, H.; Caron, J.-B.; Gaines, R. R. (2023). "First record of growth patterns in a Cambrian annelid". Royal Society Open Science. 10 (4). 221400. doi: 10.1098/rsos.221400 . PMC   10130728 . PMID   37122950.
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