| 词条 | Bolbocephalus |
| 释义 |
|name = Bolbocephalus |fossil_range = Early Arenig[1] |taxon = Bolbocephalus |authority = Whitfield, 1890 |type_species = Bathyurus seelyi |type_species_authority = Whitfield, 1886 |subdivision_ranks = Other species |subdivision =
}}Bolbocephalus is a genus of proetid trilobites in the family Bathyuridae. Species lived during the early part of the Arenig stage of the Ordovician Period,[1] a faunal stage which lasted from approximately 478 to 471 million years ago, in marine strata of the United States, Canada, and Greenland.[2] References1. ^1 {{cite journal |last=Sepkoski |first=Jack |authorlink= |title=A compendium of fossil marine animal genera (Trilobita entry) |journal=Bulletins of American Paleontology |volume=364 |issue= |page=560 |year=2002 |url=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=307&rank=class |doi= |id= |accessdate=2008-01-12 |deadurl=yes |archiveurl=https://web.archive.org/web/20060905162524/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=307&rank=class |archivedate=2006-09-05 |df= }} {{Taxonbar|from=Q4938999}}{{proetida-stub}}2. ^{{cite journal | last1 = McCobb | first1 = L.M.E. | last2 = Boyce | first2 = W.D. | last3 = Knight | first3 = I. | last4 = Stouge | first4 = S. | title = Lower Ordovician trilobites from the Septembersø formation, North-East Greenland | journal = Alcheringa | date = 2014 | volume = 38 | issue = 4 | pages = 575–598 | doi = 10.1080/03115518.2014.951913 }} 5 : Proetida genera|Ordovician trilobites of North America|Paleozoic life of Newfoundland and Labrador|Paleozoic life of Nunavut|Paleozoic life of Quebec |
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