Species: pebasensis SALAS-GISMONDI, FLYNN, BABY, TEJADA-LARA, WESSELINGH, & ANTOINE, 2015
Etymology: From Pebas, after the old Amazonian village of Pebas, Peru, from wich teh source geological formation was named.

Holotype: MUSM 990

Locality: Locality IQ114, Iquitos area, Fernando Lores District, Peru.

Horizon: Pebas Formation.

Biostratigraphy: Mollusc Zone 8.

Age: Late Middle Miocene Epoch, Neogene Period, Lower Quaternary Subera, Cenozoic Era.

Material: Nearly complete skull.

Referred material:

MUSM 925: Anterior portion of right dentary with 1-5 alveoli.

 MUSM 1437: Endtulous right premaxilla.

MUSM 1465: Edentulous premaxillae.

MUSM 1737: Left mandible.

MUSM 1739: Left splenial.

MUSM 1761: Anterior porionof right dentary with 1-6 alveoli.

 MUSM 1979: Rightmandible.

MUSM 2040: Partial left mandible.

MUSM 2051: Right squamosal, exoccipital, and quadrate.

Locality: Locality IQ116, Iquitos area, Itaya River, Peru.

Horizon: Pebas Formation.

Biostratigraphy: Mollusc Zone 8.

Age: Late Middle Miocene Epoch, Neogene Period, Lower Quaternary Subera, Cenozoic Era.

Material:

MUSM 662: Left jaw preserved from the anterior tip of the dentary to posterior process of the angular.

Locality: Locality IQ26, Iquitos area, Fernando Lores District, Peru.

Horizon: Pebas Formation.

Biostratigraphy:

Age: Late Middle Miocene Epoch, Neogene Period, Lower Quaternary Subera, Cenozoic Era.

Material:

MUSM 1722: Right mandible lacking the retroarticular process.

MUSM 1730: Left mandible.

Locality: Locality IQ125, Nueva Union, Peru.

Horizon: Pebas Formation.

Biostratigraphy:

Age: Late Middle Miocene Epoch, Neogene Period, Lower Quaternary Subera, Cenozoic Era.

Material:

MUSM 2393: Posterior portion of right mandible.