460 Haworth—Stratigraphy of the Kansas Coal Measures. 
minished thickness, so that it seems probable that it reaches 
many miles farther west. In places it is very fossiliferous, pro- 
ducing the following species with many others: Michelinia 
eugenee » Athyris subtilita ; Lingula scotica ; Productus 
longispinus ; Productus pertenuis ; Spirifera camerata ; Spe- 
rifera lineatus ; Aviculopecten carboniferus ; Pinna sub- 
spatulata ; Nautilus occidentalis ; Nautilus missouriensis. 
The Lane Shales.’ *__ Passing upwards from the [ola lime- 
stone, and leaving unnoticed in this article a shale bed from 
40 to 50 feet thick and a limestone one one-fourth as great, 
we come to the Lane shales, which in many places reach 150 
feet in thickness. They are very prominent all along the 
Pottawatomie river from its source to Osawatomie, and are 
known to extend far to the southwest. To the northeast, how- 
ever, they thin greatly so that at Kansas City they are rela- 
tively unimportant, allowing the succeeding limestone to come 
close down to the Iola. They carry considerable sandstone, 
which frequently shows many ripple marks, and they show the 
usual gradations back and forth from shale to sandstone and 
sandstone to shale. 
The Garnet Limestone.t — Fivinlcdiallt ds above the Lane 
shales are two limestones separated by from ten to fifteen feet 
of shales. They appear in the bluffs at Argentine and form 
the upper limestone westward to Eudora and have been passed 
by borings at Lawrence and Topeka. They cover the surface 
over a wide area along the Pottawatomie river and northward 
to Eudora and Argentine, and extend southwest across the 
Neosho river and probably to beyond the limits of Kansas. 
In places they thicken greatly. -At the Lane “marble” quar- 
ries the upper one has reached the thickness of 30 or 40 
feet, as it has also done about three miles east of Greeley. The 
most common invertebrate fossils found in them are the fol- 
lowing: Campophyllum (?); Fenestella (?) ; Synocladiva bisert- 
-ulis; Derbya(?); Productus americanus ; Productus semiret- 
cculatus ; Syntrialasma hemiplicata, very abundant in places ; 
Myalina kansensis; Myalina recurvirostris ; Huomphatus 
subrugosus ; MNaticopsis altonensis ; Pleurotomaria tabulata, 
Nautilus occidentalrs, and about forty other species. 
The Lawrence Shales. — These shales in the vicinity of 
Lawrence are near 300 feet thick if we let the name 
cover all lying between the Garnet limestone and the Oread 
limestone above. Occacionally a thin limestone occurs 
within them, one of which sometimes reaches 6 or more feet 
in thickness, but none of which have sufficient lateral extent 
* Haworth, Kan. Univ. Quart., vol. ili, p. 287, April, 1895. 
+ Haworth and Kirk, Kan. Univ. Quart., vol. ii, p. 110, Jan., 1894. 
t Haworth, Kan. Univ. Quart., vol. ii, p. 122, Jan., 1894. 
