UM ,, HKXAmlJALLAPERFORATA !>3 



/;//y;.>v/,,, //</,/, E. and H. (Fig. 162). Conical or turbinate, acutely pointed. 



Septa very numerous, arranged in five cycles, those of the last cycle 



-touter than the rest. Columella jut-sent or absent. 



Eocene to Recent. 



i;,il,n,n/,liiillw. Wood (Fig. 163). Simple, sub- 

 evlindrieal, with broad encrusting base. Columella 

 spoiii^v; septa closely crowded, partly fused together. 

 Eocene to Recent. 



Stephanophyllw, Mich. (Fig. ^ 



164). Simple, discoidal; base 

 horizontal, calice circular. Septa 

 numerous ; the six principal septa 

 extending to the centre, the re- 

 mainder with fused inner edges. 

 (Vetaeeoiis and Tertiary. 



/>,;,,l,-<'i>hr/Ilia, Blv. (Fig. 165). 

 Corallum branching, increasing 

 lv lateral gemmation. Calices 

 oval ; septa numerous and slender, 

 those of the last cycle extending 

 to the spongy columella, and fused with the converging ends of shorter septa 

 of preceding cycle. Tertiary and Recent. 



Lobopsammia, Stereopsammia, E. and H. ; Eocene. Astroides, E. and H. ; 

 Keeent. 



Family 3. Thamnastraeidae. Reuss. 



(Pseudoastraeidae and Pseudoagaricinae, Pratz.) 



Simple corolla, or composite, basally expanded or massive colonies. Septa numer- 

 ous, move or less perforate, and composed of calcareous bodies (trabeculae) arranged in 



FIG. 165. 

 Dendrophyllia . elegans, Duncan. Oligocene ; Brockenlmrst, 



5 ' Trausv " rs " s " rti "" 



natural size 



FIG. 166. 



Lam. Ujipfr Cr<'t;icc,,us ; (iosau Valley, Salzkaininergut. ., Side view ; 

 &, Lower surface ; c, Lateral aspect of septum, natural size. 



vi i-finil or fan-shaped rows. Theca between individual corallites absent, but present on 

 under side of corallites or on lower side of the common stock Interseptal loculi with 

 xi/iHi/iticulae and dissepiments. Abundant from Trias to Cretaceous ; rarer in 

 Tertiary and Recent. 



Anabacia, E. and H. Simple, free, discoidal, or lenticular coralla, with flat 

 base. Upper side vaulted, calice slit-like. Septa very numerous, thin, and 

 united by synapticulae. Theca absent. Jurassic. 



