- Lophophyllum.
- Productus chandlessii Derby.
- " cora d’Orb.
- Orthotetes correanus (Derby).
- Spirifer condor d’Orb.
River bowlders and stones of Urubamba river, just beyond eastern edge of Cordillera at mouth of Ticumpinea river. (Detached and transported by stream action from the Upper Carboniferous at Pongo de Mainique.)
- Mostly Trepostomata Bryozoa.
- Many Productus spines.
- Productus cora d’Orb.
- Camarophoria. Same as at Pampaconas.
- Productus sp. undet.
Cotahuasi A.
- Lophophyllum.
- Productus peruvianus d’Orb.
- " sp. undet.
- Camarophoria.
- Pugnax near utah (Marcou).
- Seminula argentea (Shepard)?
Cotahuasi B.
- Productus cora d’Orb.
- " near semireticulatus (Martin).
IV. Comanchian or Lower Cretaceous
Near Chuquibambilla.
- Pecten near quadricostatus Sowerby.
- Undet. bivalves and gastropods.
- The echinid Laganum? colombianum d’Orb. A clypeasterid.