B. sphaerulosus (Fritz, 1991), synonyms Olenellus sphaerulosus, O. bufrontis[1]
Bolbolenellus is an extinct genus of trilobites, fossil marine arthropods, with five species attributed to it currently. It can be easily distinguished from all other trilobites by the combination of the absence of dorsal sutures in the head shield like all Olenellina (which in all other trilobite suborders assist in moulding by splitting open), and a distinctly bulbous frontal lobe (L4) of the raised axial area in the head (or cephalon) called glabella. The species lived at the end of the Lower Cambrian.
^ abcdefLieberman, B.S. (1999). "Systematic Revision of the Olenelloidea (Trilobita, Cambrian)" (PDF). Bulletin of the Peabody Museum of Natural History. 45.
^Palmer, A.R. (1998). "Terminal Early Cambrian Extinction of the Olenellina: Documentation from the Pioche Formation, Nevada". Journal of Paleontology. 72 (4): 650–672. Bibcode:1998JPal...72..650P. doi:10.1017/S0022336000040373. JSTOR 1306693. S2CID 131861504.
the Geological Survey of Canada, 409: 1–77 Oblique picture of Bolbolenellus brevispinus picture of Bolbolenellus brevispinus from a dorsal point of view...
spines in adults. Bristolia groenlandicus = Bolbolenellus groenlandicus Bristolia kentensis = Bolbolenellus groenlandicus The genus Bristolia is derived...
Morocco Monotypic genus in Acastidae. The type species is B. tamnrhertus. Bolbolenellus dodoensis Sp. nov Valid Handkamer & Pratt in Handkamer, Pratt & MacNaughton...
thoracal segment with the rest of the family Biceratopsidae (except for Bolbolenellus). Peachella is unique in having short, wide, strongly inflated genal...
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