SIMPLIFIED LIST OF RECENT CLASSES AND ORDERS 10 



Class Subcl Order 



Microsporidia microsporidians 

 Helicosporidia 

 Sarcosporidia 



Sarcosporidia 

 Globidia 

 Haplosporidia 



Haplosporidia 

 CILIATA ciliates 

 Protociliata 



Opalinida opalinids 

 Euciliata 



Holotricha 



Spirotricha tintiimids, etc. 

 Chonotricha 

 Peritricha 

 SUCTORIA 



Suctoria 



PORIFERA 



sponges 

 CALCAREA (Calcispongea) [calcareous sponges, chalky sponges] 



Solenida 



Lebetida 



Pharetronida 



Thalamida 

 HYALOSPONGEA (Hexactinellida) glass-sponges 



Lyssakina 



Dictyonina 



Lychniskophora 



Heteractinida 

 DEMOSPONGEA 



Myxospongida 



Keratosida horny-sponges 



Haplosclerida 



Poecilosclerida 



Hadromerida 



Halichondrida 



Epipolasida 



Choristida 



Carnosida 



Lithistlda stone-sponges 



