Oogenus: Triprismatoolithus JACKSON & VARRICCHIO, 2010

Oospecies: stephensi JACKSON & VARRICCHIO, 2010

Referred material:

Locality: First Find Micorsite (OTM 99-19), Sevenmile Hill outcrops, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

ES 127: Abnormal, multilayered eggshell.