Didelphidae
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Mammalia |
| Order: | Marsupialia |
| Superfamily: | Didelphoidea |
| Family: | Didelphidae |
- Genus
- Caluromys
- derbianus, lanatus, philander -- Woolly opossum
- Caluromysiops
- irrupta -- Black-shouldered opossum
- Chironectes
- Delphis
- albiventris, marsupialis, virginiana -- Large American opossum
- Glironia
- venusta -- Bushy-tailed opossum
- Lestodelphys
- halli -- Patagonian opossum
- Lutreolina
- crassicaudata -- Thick-tailed oposssum
- Marmosa Marmosa
- alstoni, canescens, cinerea, constantiae, cracens, domina, emiliae, fuscata, germana, impavida, incana, invicta, lepida, leucastra, mapiriensis, mexicana, murina, noctivaga, ocellata, phaea, quichua, rapposa, regina, robinsoni, rubra, scapulata, tyleriana, yungasensis, xerophila -- Murine opossum
- Marmosa Thylamys
- aceramarcae, agilis, agricolai, dryas, elegans, formosa, grisea, karimii, marica, microtarsus, pusilla, tatei, unduaviensis, velutina -- Murine opossum
- Metachirops
- mcilhennyi, opossum -- Opossum
- Monodelphis Minuania
- adusta, americana, brevicaudata, dimidiata, domestica, henseli, iheringi, kunsi, maraxina, orinoci, osgoodi, scalops, sorex, theresa, touan, unistriata, umbristriata -- Short-tailed opossum
- Philander
- nudicaudatus -- Brown Four-eyed opossum
- Stegomarmosa
- andersoni -- Murine opossum