三分節蟲加拿大三分节虫 Triarthrus canadensis Smith, 1861 Triarthrus eatoni (Hall(英语:James Hall (paleontologist)), 1838), 異名 T. macastyensis Triarthrus glaber Billings(英语:Elkanah
小油櫛蟲buttsi Olenellus terminatus Palmer, 1998 Olenellus thompsoni (Hall(英语:James Hall (paleontologist)), 1859) Olenellus transitans (Walcott, 1910), 異名 O. brachycephalus