The Rhynchonelliformea ( Articulata revised ) is divided into five classes : Obolellata, Kutorginata, Chileata, Strophomenata, and Rhynchonellata.
9.
For instance, he proposed that the invertebrates could be segmented into three individual categories, including Mollusca, Radiata, and Articulata.
10.
Grouping animals with these body plans resulted in four branches : vertebrates, molluscs, articulata ( including insects and annelids ) and zoophytes or radiata.