"Helokybe"@en . . . "*Helokybe spio"@en . . . . "Thomas & Narbonne, 1979"@en . . . . . "Helokybe is a genus of trilobite in the family Proetidae that is known from Silurian age sediments of Nunavut Canada and the Holy Cross Mountains in Poland."@en . . "Helokybe is a genus of trilobite in the family Proetidae that is known from Silurian age sediments of Nunavut Canada and the Holy Cross Mountains in Poland."@en . "1020411228"^^ . . . . . . "21402130"^^ . "Helokybe"@en . . . . "844"^^ . .