Olenellus terminatus

Order Redlichiida / Suborder Olenellina / Superfamily Olenelloidea / Family Olenellidae

Olenus, a trilobite genus name; -ellus, diminutive suffix.

terminus, Latin, end, terminus, referring to O. (Paedeumias) lineageend of

Cephalon semicircular, border narrow, genal spines slender; glabella subcylindrical, slightly constricted at S1; posterior end of palpebral lobe close to the glabella, usually opposite or slightly behind the occipital furrow; ocular region narrow; narrow; occipital node small, distinctly developed in most specimens. Prothorax of 14 segments; axial node indistinct; 3rd segment macropleural, pleural spine long, pleural spines of other segments short; pleural furrow broad; 15th segment with a long axial spine. The rest of the thorax and pygidium are unknown.