Tergomya - Tryblidiida - Tryblidiidae

Full reference: R. P. Whitfield. 1886. Notice of geological investigations along the eastern shore of Lake Champlain, conducted by Prof. H.J. Seely and Pres. Ezra Brainerd, of Middlebury College, with descriptions of the new fossils discovered. Bulletin of the American Museum of Natural History 1(8):24-35

Belongs to Tryblidium according to P. J. Wagner 2011

Sister taxa: Tryblidium acutum, Tryblidium arctica, Tryblidium erato, Tryblidium eubule, Tryblidium exserta, Tryblidium hyrie, Tryblidium modestum, Tryblidium niobe, Tryblidium nycteis, Tryblidium ovale, Tryblidium ovatum, Tryblidium pileolum, Tryblidium reticulatum, Tryblidium rugosum, Tryblidium thorsteinssoni

Ecology: epifaunal grazer