page_title: List of the Paleozoic life of California
section_title: B
hierarchical_section_title: List of the Paleozoic life of California / B
caption_attribution_description: English: A Bristolia mohavensis trilobite, Order Redlichiida, Family Biceratopsidae, 15mm along the axis, collected from the Latham Shale, California, USA, from the final stage of the Lower Cambrian (Toyonian); Actually this is not one specimen, but a small cephalon superimposed on an enroled larger specimen.
context_page_description: This list of the Paleozoic life of California contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of California and are between 541 and 252.17 million years of age.
context_section_description: †Bakevellia
  †Bathymyonia
  †Bathymyonia nevadensis – or unidentified comparable form
  †Bayhaium
  †Bayhaium merriamorum
  †Bayhaium virginiae – type locality for species
  †Bellefontia
  †Beraunia
  †Beraunia bifrons – or unidentified comparable form
  †Bicarina
  †Bicarina petilitornata
  †Biformispira – type locality for genus
  †Biformispira isaacsoni – type locality for species
  †Bighornia
  †Bimuria
  †Blastoidocrinus
  †Blastoidocrinus carchariaedens – or unidentified comparable form
  †Bolbolenellus
  †Bolbolenellus brevispinus
  †Bolbolenellus euryparia
  †Bonnia
  †Boucotspira – type locality for genus
  †Boucotspira fimbriata – type locality for species
  †Brachyprion
  †Brachyprion seretensis – or unidentified comparable form
    †Bristolia
  †Bristolia anteros
  †Bristolia brachyomma
  †Bristolia bristolensis
  †Bristolia fragilis
  †Bristolia insolens
  †Bristolia mohavensis
  †Bryorhynchus – report made of unidentified related form or using admittedly obsolete nomenclature
  †Bryorhynchus bisulcatum
  †Bumastus
  †Buxtonia
  †Buxtonia scabriculoides
  †Buxtonia websteri – or unidentified comparable form
caption: Fossil of the Cambrian trilobite Bristolia
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