- Ophiocordyceps sobolifera stroma situ ed DW Ms
- Ophiocordyceps volkiana in situ
- Opossum Gray-slender Marmosops incanus
- Opossum Gray-slender Marmosops incanus
- Orchid Coroico 3 S
- Orchid Coroico pink 1 S
- Orchid Coroico white 2 S
- Orchid white Chalalan S
- Orchid yellow Chalalan S
- Orinoco Goose (Neochen jubata) S
- Oropendula Coroico
- Oudemansiella canarii Chalalan 2012 S
- Paccary Chlalan S
- Paecilomyces on Shieldbug Coroico DW Ms
- Paecilomyces on Shieldbug Fly Coroico DW Ms
- Papa dealer La Paz S
- Papas red & yellow S
- parasitic plant Chalalan
- pendulent bluish flower
- Penicilllopsis on seeds Chalalan 2013 S