TYPE SPECIMENS OF PALEOZOIC FOSSILS 21 



Dictyophyton t e\um see Prismodictya telum 

 Dictyophyton tenue see Tylodictya ? tenuis 

 Dictyophyton tomaculumw Clathrospongia? 



tomaculum 

 Dictyophyton tuberosum see Hydnoceras 



barroisi 

 Dictyophyton tuberosum see Hydnoceras 



tuberosum 

 Dictyophytum ramosum see Botryodictya 



ramosa 

 Ectenodictya eccentrica see Acloeodictya (?) 



eccentrica 

 Ethmophyllum rarum see Archaeocyathellus 



rams 

 Ethmophyllum rensselaericum see Archaeo- 

 cyathellus rensselaericus 



hallodictya Hall & Clarke 

 Hallodictya cottoniana Hall & Clarke 

 -95 - y ° type Hallodictya cottoniana Hall & Clarke. 

 New York state museum memoir 2. 1S98. p. 142, pi. 41, 

 fig. 12. 



Chemung beds Cotton hill, near Avoca N. Y. 



Hallodictya sciensis Hall &: Clarke 

 96 ^f- 1 - plastotype Hallodictya sciensis Hall & 

 Clarke. New York state museum memoir 2. p. 140, 

 pi. 36, fig 8. 



Chemung beds Scio X. Y. 



helicodictya Hall & Clarke 



Helicodictya (?) concordia Hall & Clarke 

 qj sjuLQ. plastotype H e 1 i c o d i c t y a (?) concordia Hall 

 & Clarke. New York state museum memoir 2. 1S98. 

 p. 115. pi. 27. fig. 2. 



Chemung beds Concord station Pa. 



Hyalostelia (?) m arc ell i a see Dictyospongia (?) marcellia 



hydnoceras Conrad 

 Hydnoceras barroisi Hall & Clarke 

 ^8 lips*, plastotype Dictyophytoo tuberosum 



Annales de la Socu'tc geologique du nord. 11:82, pi. 1, 

 fig, j;i 



