Poaläntologie. 469 



F BE Se F > käno- 
| Paläozoiseh | Mesozoisch | „sisch 
Ber | N. 
= I - & a | | © = = En 
2 el2ea 82|2|53 38 8 
u Eh RE = Ken 
224 = [# 2]: 
5 | Im 
[1 Clathrian "= ; | | | | * 
| 2. Eetyon 5 k 
© f. y . . | 
=| 3. Echinodectyum : * 
3) 5 Ophlitaspongia ; ; | | * 
S,) 5. Plocamnia f * & 
| 2 | 
3| 6. Ketyonopsts : | H 
| 7. Echinonema ; | * 
ls. Hgelasıee . ; * 
| 
: | 
Ceratina | 
| | 
| 1. Spongeldu | = 
{ ® 2. Psammoclema . | * 
Spongelidae a | | 
3. Psammopemma * 
4. Velinea : | ir 
[ 1. Coscinoderma : | = 
@| 2. Euspongia . 3 | * 
- A 5 = | | E 
=] 3. Hippospongea . > | | “ 
ui Ai | | 
en? 4. Cacospongia : | | s 
= | | | 
=| 5. Stelospongos ! * 
= ee, | | 
Z| 6. Carteriospongia : | * 
| 7. Phyllospongia _. : i 
1. Aplysina e | * 
Aplysinidae 2. Verongia & | | = 
3. Luffaria : | | | & 
1. Darwinella | | e 
Darwinellidae 2. Aplysilla . | * 
3. Dendrilla . | x 
I 
P. calcarea. | | 
Homocoela | | 
(Asconidae) 1. Leucosolenia . | | * 
“ Heterocoela | | 
| TSUEOnE na £ | © 
©| >. Grantia . : | * 
=| 3. Üte u : * 
ui 
= 4. Heteropegma . . .; . | a x 
S| 5. Amphoriscus r | | * 
z| b. Anamixilla : | | * 
| MEENOLOSYLCOTE N > : | * | 
. | 
| 1. Leueilla . i | | * 
F 2. Leuconia e | | | | * 
Leuconidae ne (Ra | 
3. Pericharau . | * 
4. Leucetta ; * 
. o 1. Teichonella . | | * 
Teichonidae | 52 ; | | 
\2. Eilhardia . . | | | * 
