F. V. Hayden on the ‘Geology of Kansas. 35 
lished in the Transactions of the St. Louis Academy of Sciences 
in 1858, and in the Am. Jour. Sci., vol. xxvi, p. 182, of the same 
year, for his views in regard to their specific relations. In 
these papers he shows by a tabular arrangement the a in 
the various rocks of each species mentioned, as he u 
them. In these lists he enumerates about 70 species of Upper 
Coal-measure and Permian fossils, 16 of which he shows to 
be common to the Upper Coal-measures and his Lower Permian, 
and two to the latter and the Upper Permian 
The following well known, and, with one ‘or two exceptions, 
widely distributed species of our western Coal- measures, are 
those given by him as common to the Lower Permian and Up- 
er Coal- — viz: Productus semireticulatus, P. Rogers; 
P. aequicostatus, Spirifer cameratus, S. planoco mveets, S. n- 
efera? Chonetes Fleméngis Orthisina umbraculum m,* O. ‘Missourien- 
sis, Ehynchonella Osagensis, see tats ? subtilita, Myalina recta, 
M. subquadrata, M. Kansasensis, Allorisma Minnehaha, and Na- 
tiea Pricei; he also identifies : with this Macrocheilus spiratus 
McCoy, a Subcarboniferous species. With the exception of 
Spirver pectinyfera Sowerby, with which we are not acquain 
and MMacrocheilus spiratus, we know all of these common Coal- 
measure species occur abundantly in the so-called Lower Per- 
mian of a also the be cap So other Coal-measure species, 
viz., Avi occidentalis ( Pecten Cleavlandicus of Prof. ak 
pase list), Taha occidentalis Swallow (afterward described 
from the Coal-measures of Illinois by —— under a 
name), Fusulina cylindrica in great numbers (or th 
forms generally referred to that species in the wes), Chonetes 
mucronata, Productus Calhountanus, uphalus rugosus 
(not Sowerby), a small Spirifer often referred to S. lineatus, Phil- 
lipsia Clifionensis Shumard, and others. From the same so- 
called Lower Pemnian Prof. ‘Swallow also cairsly identifies 10 
European Permian species, and some 5 or 6 others with doubt; 
also with doubt, = a species, 3 Triassic, and 1 
a a 
ote np question the accuracy of these deter- 
mination, by w which ‘Carboniferous, Permian, Triassic and Lias- 
Coal-measure species, and four genera, i. e., Petalodus, Phillipsia, 
Bellerophon anit Peston ‘of Eu 
not known i in the Permian of 
ee use the sion gle to te list. Orthisina as now restrsted is Silo 
rian genus, and the Natica is a Naticopsis, 
