Genus: Leptostomia SMITH, MARTILL, KAO, ZOURHI & LONGRICH, 2021
Etymology: Greek, leptos, "slender" and Greek, stoma, "mouth."

Species: begaaensis SMITH, MARTILL, KAO, ZOURHI & LONGRICH, 2021
Etymology: After the oasis village of Hassi El Begaa near the type locality of Aferdou N'Chaft.

Holotype: FSAC-KK 5075

Locality: Aferdou N'Chaft, Hassi El Begaa, d'Errachidia Province, Morocco.

Horizon: Upper Ifezouane Formation, Kem Kem Group.

Biostratigraphy:

Age: ?Albian Stage, Gallic Subepoch, Late Early Cretaceous Epoch, Late Early Cretaceous-Lower Cenomanian Stage, Late Gallic Subepoch, Early Senonian Subepohc, Middle Cretaceous.

Material: Partial rostrum, anterior to nasoantorbital fenestra and missing tip.

Paratype:

FSAC-KK 5076: Patial mandibular symphysis from anterior of the divergence of the mandibular rami.

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