Meniscuchus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites.

It lived during the Botomian stage,[1] which lasted from approximately 522 to 516 million years ago.

Meniscuchus has been found in the USA (Alaska, New York), Canada (Newfoundland, Quebec), Russia (Siberian Platform, Gorno-Altayskaya) and Australia (New South Wales).

At the back the glabella is terminated by a narrow occipital ring (L0), extended backwards at midline with its margin a semicircle.

Its axis is tapering and reaching the border furrow at midline, and is deeply segmented with 4 to 10 axial rings.