Bolbocephalus

Bolbocephalus Temporal range: Early Arenig [1]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	† Artiopoda
Class:	† Trilobita
Order:	† Proetida
Family:	† Bathyuridae
Genus:	† Bolbocephalus Whitfield, 1890
Type species
Bathyurus seelyi Whitfield, 1886
Other species
B. angustisulcatusPoulsen, 1927 B. convexus(Billings, 1865) B. ellesmerensisAdrain & Westrop, 2005 B. groenlandicusPoulsen, 1937 B. gunnariFortey & Bruton, 2013 B. jeffersonensisCullison, 1944 B. kindleiBoyce, 1989 B. stclairiCullison, 1944 B. stevensiBoyce, 1989

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]

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. McCobb, L.M.E.; Boyce, W.D.; Knight, I.; Stouge, S. (2014). "Lower Ordovician trilobites from the Septembersø formation, North-East Greenland". Alcheringa. 38 (4): 575–598. Bibcode:2014Alch...38..575M. doi:10.1080/03115518.2014.951913. S2CID   129962497.