Palaeontographica, Bd. XXI, N. F. I. 



Taf. XL. 



5*' 





Schlotterbeck def. atJ nat. 



1. Latusastraea aiveolaris Goldf. sp. — 2. Thamnastraea coiicinna Goldf. sp. — 3. Tham- 

 nastraea gibbosa Beck, — 4. Th. patina Beck. — 5. Th. subagaricites Beck. — 6. Th. 

 arachnoides Park. sp. — 7. Th. pseudarachnoides Beck. — 8. Th. robuste-septata Beck. 

 9. Th. heterogenea Beck. — 10. Th. discrepans Beck. — 11. Th. seriata Beck. — 12. Th. 



foliacea Quenst. sp. 



