Oogenus: Tipoolithus GARCIA, TABUCE, CAPPETTA, MARANDAT, BENTALEB, BENABDALLAH, & VIANEY-LIAUD, 2003
Etymology: Tip in reference to the shape of nodes, Greek, Oo, 'egg', and Greek, lithus, 'rock or stone'.

Species: achloujensis GARCIA, TABUCE, CAPPETTA, MARANDAT, BENTALEB, BENABDALLAH, & VIANEY-LIAUD, 2003
Etymology: In reference to the type locality, Achlouj.

Holotype: ACH2-06

Locality: Achlouj 2, Middle Atlas, Morocco.

Horizon: Irbzer Formation.

Biostratigraphy:

Age: Maastrichtian Stage, Uppermost Senonian, Uppermost Gulf Epoch, Late Cretaceous.

Material: Single eggshell fragment.

Referred material:

Numbers: Not given: 11 eggshell fragments.