Genus: Leptorhynchos LONGRICH, BARNES, CLARK, & MILLAR, 2013
Etymology: Greek, leptos, "small" and Greek, rhynchos, "beak."

Species: gaddisorum emend LONGRICH, BARNES, CLARK, & MILLAR, 2013
Note: The authors coined the name in honor of the Gaddis family, the ending should be 'orum,' not 'i,' and is here emended.
= Chirostenotes gaddisi LONGRICH, BARNES, CLARK, & MILLAR, 2013 (sic)
= Leptorhynchos gaddisi LONGRICH, BARNES, CLARK, & MILLAR, 2013
Etymology: In honor of the Gaddis family, from whose land the holotype was collected.

Holotype: TMM 45920

Locality: Texas.

Horizon: Aguja Formation.

Biostratigraphy:

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

Material: Fused dentaries.

Referred material:

TMM 42335-40: Caudal vertebra.

TMM 43057-354: Distal end of metatarsal III.

TMM 43057-36: Proximal end of metatarsal IV.

TMM 43057-357: Pedal ungual.

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