Orbulina bilobata

N9-N23

Orbulina universa

N9-N23Pull.primalis

N17-N20

Pull.praecursor

Pliosen (N17-N20)

Pull.obliquiloculata

N20-N23

FlapApertur segi 3

>besar

Apertur segi 3

Ga. Tripartita

P14-N3

Ga. Venezuelana

N3-N18Gq.dehiscens

N5-N19 Gq.altispira

N3-N21

lurus

menyudut

Kamar akhir lurusKeel tebal

lurus

Tes Segi 4

Gt.praemenardii

N10-N13

Gt.menardii

N14-N23

Gt.multicamerata

N18-N21 Gt.plesiotumida

N17-N18

Gt.tumida

N18-N23

Huruf Slurus

Pipih, keel tebal

Gt.acostaensis Gt.mayeri Gt.siakensis Gt.tosaensis

N16-N21 N9-N13 N2-N14 N21-N23

Catapsydrax dissimilis

N1-N9H.aequilateralis

N15-N23

Gt. obessa

N8-N19

Gs. Immaturus Gs. primordius Gs. trilobus Gs. fistulosus Gs. sacculiferus

N5-N23 N4 N6-N23 N18-N21 N6-N23

Gs.obiquus

N6-N21

Gs.sicanus

N18-N19 Gs.subquadratus

N5-N13

Sph.dehiscens Sph.subdehiscens

N19-N23 N13-N19

Ga praebulloides

P16-N16Gs.primordius

N4

Ga seminulina

(N16-N21)Ga sicanus

(18-N19)