Bristolia

Bristolia
Temporal range: late Lower Cambrian (Lower Olenellus-zone) 522–516 Ma
Bristolia mohavensis, cephalon superimposed on a roled-up specimen with cephalon and thorax, pygidium hidden or absent
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Trilobita
Order:
Redlichiida
Suborder:
Olenellina
Superfamily:
Olenelloidea
Family:
Biceratopsidae
Subfamily:
Bristoliinae
Genus:
Bristolia

Harrington, 1956
species
  • B. bristolensis (Resser, 1928), (type), synonym Mesonacis bristolensis[1]
  • B. anteros Palmer, 1979[1]
  • B. brachyomma Palmer, 1979)[2]
  • B. fragilis Palmer, 1979[1]
  • B. harringtoni Lieberman, 1999[1]
  • B. insolens (Resser, 1928), synonyms Mesonacis insolens, Olenellus insolens[1]
  • B. kurtzi Peel, 2011[3]
  • B. mohavensis (Hazzard & Cirkmay, 1933), synonyms Paedeumias mohavensis, Olenellus mohavensis[1]

Bristolia is an extinct genus of trilobite, fossil marine arthropods, with eight or more small to average size species.[1] It is common in and limited to the Lower Cambrian (Upper Olenellus-zone) shelf deposits across the southwestern US, which constitutes part of the former paleocontinent of Laurentia.[2]

  1. ^ a b c d e f g Lieberman, B. S. (1999). "Systematic Revision of the Olenelloidea (Trilobita, Cambrian)" (PDF). Bulletin of the Peabody Museum of Natural History. 45.
  2. ^ a b Hollingsworth, J. S; Sundberg, F. A.; Foster, J. R. (2011). "Mark Webster. Trilobite Biostratigraphy and Sequence Stratigraphy of the Upper Dyeran (Traditional Laurentian "Lower Cambrian") in the Southern Great Basin, USA. In: Cambrian Stratigraphy and Paleontology of Northern Arizona and Southern Nevada" (PDF). Museum of Northern Arizona Bulletin. 67: 121–154.
  3. ^ Peel, J.S. (2011). "Olenelloid trilobites form Cambrian Series 2 of Devon Island, Nunavut, Arctic Canada". Canadian Journal of Earth Sciences. 48 (11): 1471–1482. Bibcode:2011CaJES..48.1471P. doi:10.1139/E11-048.