238 



ACTINOZOA. 



PALEOZOIC COEALS, 



"WHICH OCCUR IN MORE THAN ONE GEOLOGICAL PERIOD. 









Names of Periods. 



Names of Genera arranged in order 



• 



• 



S 

 09 



• 



O 



i 



of their appearance. 















** 



3 



> 











O 



o 



w 





33 



Q 



arb 



Pi 









O 





Cystiphyllum 



■ 











Syringophyllum 







— 











Eridophyllum 







— — 











Ptychophyllum 



















Atdacophyllum 











— 







Heliolites 











■ 







Psammopora 







— — 



— — 







Aulopora 







? 



_ 







Cyathaxonia 







— 





MM 





Clisiophyllum 











Propora 







— 



— 





Cyathophyllum 







— 



— 



^^ 





Zaphrentis . 







— 



— 



«... 





Syringopora . 







— 







MV« 





Favosites 

















Emmonsia . 







- 1 1. 









Alveolites 



















Chaetetes 







. 



__ 







Philippsastrea 











^mg 





Lithostrotion 









- 





Campophyllum 









w. .__ 







Amplexus 









- 



t 





Lophophyllum 









m . - 



_ 





Beaumontia . 







■ 



_« 







Michelinia . 













■ 



Fistulipora . 

















