NEW YORK STATE MUSEUM 



Archaeocyathellus rensselaericus Ford (sp.) 



53 2 °i g * type Archaeocyathellus? rensselaericus 



Ford. American journal of science and arts, 3d ser. 

 1873. 5:211, 212, fig. 1. 



Ethmophyllum rensselaericum Walcott. 

 U. S. geological survey bulletin 30. 1886. pi. 5, fig. if. 



Lower Cambric Troy N. Y. 



S. W. Ford purchase 

 Archaeocyathus rarus see Archaeocyathellus 

 rarus 



arystidictya Hall & Clarke 

 Arystidictya nodifera Hall & Clarke 



54 plastotype Arystidictya nodifera Hall & 



Clarke. New York state museum memoir 2. 1898. 

 p. 137, pi. 41, fig. 11. 



Lower Chemung beds Cotton hill, near Avoca N. Y. 



botryodictya Hall & Clarke 

 Botryodictya ramosa Lesquereux (sp.) 



55 --r- hypoplastotype Dictyophytum ramosum Les- 



quereux. Description coal flora Carboniferous formation 

 Pennsylvania and United States. 1884. 3:827. 



Botryodictya ramosa Hall & Clarke. New- 

 York state museum memoir 2. 1898. pi. 13, fig. 5. 



Chemung beds Lawrenceville Pa. 



calathospongia Hall & Clarke 

 Calathospongia carceralis Hall & Clarke 



56 ^f-- plastotype Calathospongia carceralis Hall 



& Clarke. New York state museum memoir 2. 1898. 



P-I57.P 1 - 5 2 > fi g- 2 - 



Waverly beds Richfield O. 



57 "2~ TYPE Hall & Clarke. New York state museum memoir 2. 



1898. pi. 60, fig. 1, 2. 



Keokuk beds Crawfordsville Ind. 



A. S. Tiffany purchase 

 Calathospongia carlli Hall & Clarke 



58 2JL ^ 1 type Calathospongia carlli Hall & Clarke. New 



York state museum memoir 2. 1898. p. 158, pi. 52, fig. 4, 5. 

 Waverly beds Near Pleasantville Pa. 



J. F. Carll, donor. 1899 



