Here is a short list (in taxonomic form) of some of the easier living things you can find under the microscope. We use the latest ITIS taxonomy.
- Kingdom: Plantae
- Subkingdom: Viridiplantae
- Infrakingdom: Streptophyta
- Superdivision: Charophyta
- Division: Charophyta
- Class: Conjugatophyceae
- Order: Desmidiales
- Family: Closteriaceae
- Genus: Closterium
- Family: Closteriaceae
- Order: Desmidiales
- Class: Conjugatophyceae
- Division: Charophyta
- Superdivision: Charophyta
- Infrakingdom: Streptophyta
- Subkingdom: Viridiplantae
- Kingdom: Protista
- Subkingdom: Protozoa
- Phylum: Sarcomastigophora
- Subphylum: Mastigophora (flagellates)
- Class: Phytomastigophora
- Order: Euglinida
- Order: Volvocida
- Class: Phytomastigophora
- Subphylum: Sarcodina (pseudopodal)
- Superclass: Rhizopoda
- Class: Lobosea
- Subclass: Gymnamoeba
- Order: Amoebida
- Subclass: Gymnamoeba
- Class: Lobosea
- Superclass: Rhizopoda
- Subphylum: Mastigophora (flagellates)
- Phylum: Ciliophora (cilliates)
- Class: Ciliatea
- Subclass: Rhabdophorina
- Order: Hymenostomatida
- Suborder: Peniculina
- Family: Parameciidae
- Genus: Paramecium
- Family: Parameciidae
- Suborder: Peniculina
- Order: Hymenostomatida
- Subclass: Spirotricha
- Order: Hypotrichida
- Family: Oxytrichidae
- Genus: Stylonichia
- Family: Oxytrichidae
- Order: Hypotrichida
- Peritricha
- Order: Peritrichida
- Suborder: Sessilida
- Family: Vorticellidae
- Genus: Vorticella
- Family: Vorticellidae
- Suborder: Sessilida
- Order: Peritrichida
- Subclass: Rhabdophorina
- Class: Ciliatea
- Phylum: Sarcomastigophora
- Subkingdom: Protozoa
- Kingdom: Chromista
- Subkingdom: Chromista
- Division: Pyrrophycophyta
- Class: Dinophyceae
- Order: Gonyaulacales
- Family: Ceratiaceae
- Genus: Ceratium
- Family: Ceratiaceae
- Order: Gonyaulacales
- Class: Dinophyceae
- Division: Pyrrophycophyta
- Subkingdom: Chromista
- Kingdom: Animalia
- Subkingdom: Bilateria
- Infrakingdom: Protostomia
- Superphylum: Ecdysozoa
- Phylum: Tardigrada
- Phylum: Nematoda
- Superphylum: Platyzoa
- Superphylum: Ecdysozoa
- Infrakingdom: Protostomia
- Subkingdom: Bilateria