Laudonia

Laudonia is an extinct genus of trilobites that lived during the early part of the Botomian stage,[1] which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period. There are currently two named species assigned to it.

For the region, see Lothian

Laudonia
Temporal range: late Lower Cambrian (Lower Olenellus-zone) 524–518.5 Ma [1]
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Trilobita
Order:
Redlichiida
Suborder:
Olenellina
Superfamily:
Olenelloidea
Family:
"Laudoniidae"
Subfamily:
"Laudoniinae"[2][3]
Genus:
Laudonia

Harrington, 1956
species
  • L. bispinata Harrington, 1956, (type)[2]
  • L. amputata Fritz, 1992[2]

Distribution
  • L. bispinata has been collected from the Early Cambrian of Alberta (Lower Olenellus zone, Mural Formation, Mumm Peak Section, immediately west of Mumm Peak and north of Mount Robson Provincial Park, near Mural Glacier) and of British Columbia (Cinnamon Peak-Whitehorn Mtn. Section: Dyeran) Canada.[4])
  • L. amputata is found in the Early Cambrian of Alberta (Lower Olenellus zone, Mural Formation, Mumm Peak Section, immediately west of Mumm Peak and north of Mount Robson Provincial Park, near Mural Glacier).[4]
  • Laudonia sp. is mentioned from the Lower Cambrian of the Caborca Region, Mexico (Puerto Blanco Formation, Cerro Rajon).[5]
gollark: Impossible.
gollark: Backport skynet to what?
gollark: Also, why are the categories numbered?
gollark: I resent this arbitrary antipotatos discrimination.
gollark: <@111608748027445248> You control the app listing in Opus OS right? Can you add potatOS under `Viruses`?

References
  1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on 2006-09-05. Retrieved 2008-01-12.
  2. Lieberman, B. S. (1999). "Systematic Revision of the Olenelloidea (Trilobita, Cambrian)" (PDF). Bulletin of the Peabody Museum of Natural History. 45.
  3. Lieberman, B.S. (1998). "Cladistic Analysis of the Early Cambrian Olenelloid Trilobites" (PDF). Journal of Paleontology. 72 (1): 59–78.
  4. W. H. Fritz. 1992. Walcott's Lower Cambrian Olenellid trilobite collection 61k, Mount Robson Area, Canadian Rocky Mountains. Geological Survey of Canada Bulletin 432 (432)1-66
  5. J. Stewart, M. A. S. McMenamin, and J. M. Morales-Ramirez. 1984. Upper Proterozoic and Cambrian rocks in the Caborca Region, Sonora, Mexico - physical stratigraphy, biostratigraphy, paleocurrent studies, and regional relations. U. S. Geological Survey Professional Papers (1309)1-33


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.