Publication Hitchcock (1865): summary

Hitchcock, E. 1865. Supplement to the Ichnology of New England, A Report to the Government of Massachusetts: 93.

Bisulcus Hitchcock, 1865

Hitchcock, 1865. Ichnol. New England, Suppl.: 18.
Type species: Bisulcus undulatus Hitchcock, 1865 (monotypy) = species inquirenda

Trisulcus Hitchcock, 1865

Hitchcock, 1865. Ichnol. New England, Suppl.: 18.
Type species: Trisulcus laqueatus Hitchcock, 1865 (monotypy) = species inquirenda

Trisulcus laqueatus Hitchcock, 1865 = species iquirenda

Hitchcock, 1865. Ichnol. New England, Suppl.: 18, pl. 3, fig. 4. [nomen dubium]

Bisulcus undulatus Hitchcock, 1865 = species iquirenda

Hitchcock, 1865. Ichnol. New England, Suppl.: 18, pl. 3, fig. 5. [nomen dubium]