- varies to the extent necessary to include all the forms cited in 
his synonomy, it would appear difficult to determine the extent 
of its variations, or its geological range. : 
Synocladia virgulacea (Geinitz, not Phillips; properly S bise 
rials Swallow). Good examples of this species from division 
and that we now know nearly all these fossils (excepting som® 
te. or eight new species not yet found at any other | ity) 
, aS well as above the very beds refe by 
of. Marcou and Prof. Geinitz, to the Mountain limestone near am 
ma 
are all as nearly allied to Carboniferous as to Permian forms. 
In addition to the species figured by Prof. Geinitz, we a 
know the fol. wing thee Carboniferous fossils not found ber 
by Prof. Marcou, to occur in the beds he refers to the Upp 
Dyas at Nebraska City and near there, viz: Fusulina cylinarict 
Fischer, Terebratula bovidens Morton, Orthis carbonaria Swallow, 
Retzia punctulifera Shumard (= Terebratula Mormonit Mareow),” 
enumerate it the Nebraska City seeces but civea, Plattsmouth 25th? 
lity. It occurs at plaees 
