2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/74201We construct two infinite families of knots each of which admits a Seifert fibered surgery with none of these surgeries coming from Dean's primitive/Seifert-fibered construction. This disproves a conjecture that all Seifert fibered surgeries arise from Dean's primitive/Seifert-fibered construction. The (-3,3,5)-pretzel knot belongs to both of the infinite families.11 pages, 13 figures, to appear in Trans. A.M.SGeometric Topology57M25Seifert fibered surgeries which do not arise from primitive/Seifert-fibered constructionstext