page_title: List of the Paleozoic life of Arizona
section_title: B
hierarchical_section_title: List of the Paleozoic life of Arizona / B
caption_attribution_description: English: fossil of Bellerophon sp.
context_page_description: This list of the Paleozoic life of Arizona contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Arizona and are between 541 and 252.17 million years of age.
context_section_description: †Bakevellia
  †Bakevellia prora – type locality for species
  †Bakevellia sulcata
  †Batostomella
  †Batostomella nitidula
  †Batostomella spinulosa
  †Batostromella
  †Baxtonia
  †Baxtonia arizonensis
  †Baylea
  †Baylea coheni – type locality for species
  †Bellaclathrus – type locality for genus
  †Bellaclathrus spinosus – type locality for species
   †Bellerophon
  †Bellerophon deflectus – type locality for species
  †Bellerophon huecoensis
  †Bellerophon parvicristus
  †Bellerophon sublaevis
  †Biarmeaspira
  †Biarmeaspira multilineata
  †Bicorbis – type locality for genus
  †Bicorbis arizonica – type locality for species
  †Bolaspis
  †Bolaspis aemula
  †Brachyphyllum
  †Brachyphyllum arizonicum – type locality for species
  †Brachyphyllum arizonieum – type locality for species
  †Brachyphyllum tenue – type locality for species
  †Brachythyris
  †Brachythyris chesterensis
  †Brachythyris peculiaris
  †Bradyospira – type locality for genus
  †Bradyospira johnsensis – type locality for species
  †Bransonella
  †Bransonella lingulata – tentative report
  †Bransonella nebraskensis – tentative report
  †Bransonella tribula – type locality for species
  †Brongniartites – tentative report
  †Brongniartites aliena – type locality for species
  †Brongniartites yakiensis – type locality for species
  †Bucanopsis
  †Buxtonia
  †Buxtonia arizonensis
  †Buxtonia arkansansus
  †Buxtonia arkansanus
caption: Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon
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