Species (22.489)
- Coccolithus solitus
- Coccolithus staurion
- Coccolithus macellus
- Coccomonas orbicularis
- Cochliopodium bilimbosum
- Cochliopodium pelicidium
- Cochliopodium vestitum
- Cochlipodium vestitum
- Coccolithites gammation
- Coccolithites delus
- Coccolithites macellus
- Coccolithus eminens
- Closterium aciculare
- Closterium acerosum
- Closterium aciculare ssp. subpr.
- Closterium angustatum
- Closterium amblyonema
- Closterium acutum
- Closterium attenuatum
- Closterium cornu
- Closterium cuspidatum
- Closterium costatum
- Closterium decorum
- Closterium dianae
- Closterium didymotocum
- Closterium gracils
- Closterium ehrenbergii
- Closterium elegans
- Closterium griffithii
- Closterium intermedium
- Closterium inaequale
- Closterium incurvum
- Closterium jenneri
- Closterium juncidum
- Closterium lunula
- Closterium lanceolatum
- Closterium leibleinii
- Closterium macilentum
- Closterium moniliferum
- Closterium obtusum
- Closterium obtusangulum
- Closterium praelongum
- Closterium pronum
- Closterium quadrangulare
- Closterium rostratum
- Closterium ralfsii
- Closterium setaceum
- Closterium strigosum
- Closterium turgidum
- Closterium uncinatum
- Closterium striolatum
- Coccolithites cribellum
- Clautriavia parva
- Clavihedbergella simplex
- Clavihedbergella simplicissima
- Coccolithites distichus
- Coccolithus bidens
- Coccolithus crassus
- Coccolithus barnesae
- Conorotalites intercedens
- Conradiella gracilis
- Codonocladium umbellatum
- Codonodesmus phalanx
- Colacium arbuscula
- Colacium calvum
- Colacium hyalinum
- Colacium stentorinum
- Colacium arbusculum
- Colacium vesiculosum
- Collodictyon triciliatum
- Retoramonas intestinalis
- Giardia lamblia
- Comatricha acanthodes
- Comatricha aequalis
- Comatricha caespitosa
- Comatricha cylindrica
- Comatricha aggregata
- Comatricha dictyospora
- Comatricha fimbriata
- Comatricha laxa
- Comatricha irregularis
- Comatricha longa
- Comatricha elegans
- Comatricha longispila
- Comatricha lurida
- Comatricha mirabilis
- Comatricha nigra
- Comatricha pulchella
- Comatricha rigidireta
- Comatricha rubens
- Comatricha rispaudii
- Comatricha subcaespitosa
- Comatricha suksdorfii
- Comatricha tenerrima
- Comatricha typhoides
- Conoglobigerina avarica
- Conoglobigerina bathoniana
- Conoglobigerina dagestanica
- Conorboides connula
- Conorboides glabra