230 R. T. Hill—Outlying Areas of the Comanche 
In addition Prof. Cragin has recognized from the Tucumeari 
collections of the Texas Survey two species which he had eol- 
lected from Belvidere, Cardita beluiderensis Cragin and Pinna 
comancheana Cragin. Mr. Stanton has also identified Roudaria 
[?] guadrans Cragin in the Tucumeari collections made by 
Prot. Hyatt, and Zrigonia emoryz Con., Protocardia texanum 
Con., Cardita belviderensis Cragin, Tapes belviderensis Oragin, 
and Cyprimeria sp. from the collection made by the writer. 
Counting all these known fossils, we have from the Tucum- 
cari beds the following list of species of invertebrates : 
Turbinolia texana [?] Conrad. P. texanum Conrad. 
Ostrea Marshi, as determined by Cytherea leonensis Conrad. 
Marcou. Pinna comancheana Cragin. 
Ostrea quadriplicata Shumard. Cardita belviderensis Cragin. 
Gryphea dilatata, var. tucum- Tapes belviderensis Cragin. 
caril Marcou. Roudaria [?] quadrans Cragin. 
Gryphea pitcheri Morton. Cyprimeria sp. 
Exogyra texana Roemer. Turritella seriatim granulata 
Plicatula, species undescribed. Roemer. 
. Neithea occidentalis Conrad. Turritella marnochii White, or 
Trigonia emoryil Conrad. seriatim granulata Roemer. 
Protocardia multistriata Con. Ammonites leonensis Conrad. 
These species all come from the impure shaly beds below 
the highest escarpment of brown sandstone, which we shall 
elsewhere discuss under the Dakota, and above the unfossilifer- 
ous white sands, occupying a vertical range of about 115 feet 
in thickness. | 
Of the twenty species enumerated thirteen are also repre- 
sented in the Belvidere beds, as follows: 
Gryphea dilatata var. tucum- ‘Tapes belviderensis Cragin. 
earii Marcou. Pinna comancheana Cragin. 
G. pitcheri Morton. Cardita belviderensis Cragin. 
Exogyra texana Roemer. Roudaria ? quadrans Cragin. 
Plicatula, species. Turritella seriatim-granulata 
Trigonia emoryii Conrad. Roemer. 
Protocardia multistriata Conrad. Turritella marnochii White. 
The analogy between these fossils and those characterizing 
the Washita division is so striking that it hardly seems neces- 
sary to make comparisons of the species enumerated. The 
following are peculiar to and characteristic of the Washita 
division : 
Turbinolia texana Conrad. Trigonia emoryii Conrad. 
O. quadriplicata Shumard. Pinna comancheana Cragin. 
G. dilatata var. tucumcarii Mar- Cardita belviderensis Cragin. 
cou. Protocardia texanum Conrad. 
G. pitcheri Morton (var. not Turritella marnochii White. 
given). Ammonites leonensis Conrad. 
Plicatula sp. 
