Fossils of this genus have been found in sediments of Europe, Argentina, Madagascar, Canada, the United States, and Antarctica.

[4] The species was originally described by Paul Pelseneer in an 1886 article in the Bulletin du Musée royal d'histoire naturelle de Belgique, entitled "Notice sur un crustacé des sables verts de Grandpré" ("Report of a crustacean from the green sands of Grandpré").

[2] It was part of a small collection of fossils found by the artist Frank Wilbert Stokes on Snow Hill Island, on the Antarctic Peninsula.

[3] The known fossil was collected by J. M. Tropp from strata of the Moonshine Creek Formation exposed in Contact Gulch of the Wrangell Mountains, Alaska.

Based on the palyostratigraphy the exposure is suggested to date to the latest Albian in age, and lithography of the site indicates an openwater depositional environment on the continental shelf.