Kootenia

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Kootenia
Temporal range: Middle Cambrian
Exhibit Museum of Natural History, Ann Arbor - IMG 9171.JPG
Kootenia burgessensis
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Corynexochida
Family: Dorypygidae
Genus: Kootenia
Walcott, 1889
Species

K. dawsoni   Walcott, 1889 - Type species.
K. aculacauda  Fritz, 1968
' K. brevispina  Resser, 1939
K. burgessensis   Whittington, 1975
K. convoluta  Resser, 1939
K. crassa  Fritz, 1968
K. crassinucha  Fritz, 1968
K. diutina  Fritz, 1972
K. fergusoni  Gregory, 1903
K. germona
K. marcoui
K. mckeei
K. modica   Whitehouse, 1939
K. spencei  Resser, 1939
K. styrax  Palmer & Gatehouse, 1972, [1]
K. westergårdi  Thorslund, 1949

Contents

Kootenia assemblage at the Geological Museum in Copenhagen Kootenia.jpg
Kootenia assemblage at the Geological Museum in Copenhagen

Kootenia is a genus of trilobites of the family Dorypygidae. 118 specimens of Kootenia are known from the Greater Phyllopod bed, where they comprise 0.22% of the community. [2] Its major characteristics are that of the closely related Olenoides , including medium size, a large glabella, and a medium-sized pygidium, but also a lack of the strong interpleural furrows on the pygidium that Olenoides has. [3]

Type species

Bathyuriscus (Kootenia) dawsoni Walcott, 1889. [4] From the Burgess shale (the Stephen formation) of British Columbia.

Synonyms

Kootenia is sometimes believed to be a junior synonym of Olenoides due to the marked similarities, and the fact that the main difference between them seems to be variable. [5]

References

  1. Palmer A. R, and Gatehouse C. G. 1972. Early and Middle Cambrian Trilobites from Antarctica. Contributions to the geology of Antarctica.
  2. Caron, Jean-Bernard; Jackson, Donald A. (October 2006). "Taphonomy of the Greater Phyllopod Bed community, Burgess Shale". PALAIOS. 21 (5): 451–65. Bibcode:2006Palai..21..451C. doi:10.2110/palo.2003.P05-070R. JSTOR   20173022. S2CID   53646959.
  3. Coppold, Murray and Wayne Powell (2006). A Geoscience Guide to the Burgess Shale, p.59. The Burgess Shale Geoscience Foundation, Field, British Columbia. ISBN   0-9780132-0-4.
  4. Walcott C. D. 1889. Description of new genera and species of fossils from the Middle Cambrian. Proceedings of the United States National Museum11(738):441-446.
  5. Coppold, Murray and Wayne Powell (2006). A Geoscience Guide to the Burgess Shale, p.59. The Burgess Shale Geoscience Foundation, Field, British Columbia. ISBN   0-9780132-0-4.