Maryland Geological Sukvey 141 



Cycadeoidea etrusca Cap. and Solms. 

 Cycadeoidea Ferrettiana Cap. and Solms. 

 Cycadeoidea imolensis Cap. and Solms. 

 Cycadeoidea intermedia' Ranzani 

 Cycadeoidea Maraniana Scarabelli 

 Cycadeoidea Masseiana Capellini 

 Cycadeoidea montiana Cap. and Solms. 

 Cycadeoidea Pirazzoliana Massalongo 

 Cycadeoidea Scarahelli Meneghini 

 Cycadeoidea veronensis Massalongo 



The Albian Stage 



The Black Hills Area 



In the Black Hills area the Lower Cretaceous of Ward, previously re- 

 ferred to, has been divided by Darton ^ into several formations on the 

 basis of certain lithological differences. The uppermost of these, termed 

 the Fuson formation, contains a considerable flora, which has been 

 correlated "with the Albian of Europe. The plants have been described 

 by Ward and Fontaine (loc. cit.) and include the following species: 



Abietites longifoUus (Font.) Berry 



AMetites macrocarpus Fontaine 



Acrostichopteris pluripartita (Font.) Berry ? 



Araucarioxylon Hoppertonce Knowlton 



Arthrotaxopsis grandis Fontaine ? 



Carpolithus virginiensis Fontaine 



Cephalotaxopsis magnifolia Fontaine 



CladophleMs XJngeri (Dunk.) Ward ? 



CladophleMs Wyoming ensis Font. (cf. virginiensis Font.) 



Cycadeospermum rotundatum, Fontaine 



Eguisetum BurcJiardti (Dunk.) Brongn. 



Feistmantelia oblonga Ward 



FicopJiyllum serratum Font, (not a Ficophyllum) 



Geinitzia Jenneyi Fontaine 



Leptostrobus alatus Ward 



Matonidium Althausii (Dunk.) Ward 



Pecopteris borealis Brongn. (CladophleMs or OleicJienia) 



Pinus susqucensis Dawson 



Quercophyllum, wyomingense Fontaine 



Bapindopsis variabilis Fontaine 



Sequoia ambigua Heer 



Sequoia ReichenbacM (Gein.) Heer 



^ Darton, 21st Ann. Rept. U. S. Geol. Surv., pt. iv, 1901, pp. 489-599. 



