Species: microglypha COPE 1870
Etymology:

Holotype: AMNH 6129 + ANSP 20128

Locality: Pemberton Marl Company, Birmingham, Burlington County, New Jersey.

Horizon: Hornerstown Formation, Rancocas Group.

Biostratigraphy:

Age: Late Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material: Greater part of the plastron and half of the carapace, with 4 peripheral bones.
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Species: striatula COPE 1870
Etymology:

Holotype: AMNH 2358

Locality: Pemberton Marl Company, Birmingham, Burlington County, New Jersey.

Horizon: Hornerstown Formation, Rancocas Group.

Biostratigraphy:

Age: Late Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material: Greater portion of both hypoplastra, 5 posterior peripherials, and fragments of 3 costal bones.