Pleurotomaria sphærulata Conrad.
Pleurotomaria subdecussata Geinitz.
Orthoceras cribosum Geinitz.
Griffithides scitula (Meek and Worthen) Vogdes.
27. Howard Limestone. This consists of two thin layers of limestone separated by two to ten feet of shales. The lower of these is a hard, blue limestone from twenty inches to two feet in thickness, quite fossiliferous in places, and sometimes quite full of crinoid stems and of fish teeth. The upper layer is usually coarser and more shaly. The clay between them is often very fossiliferous.
From Doctor Adams’s notes, published by Professor Haworth,[[8]] it will be seen that the Howard limestone is the same as the rock over the Osage coal, and that his Severy shale is the same as the Osage City shales.
Some of the fossils here listed were collected from ballast near Lawrence, on the old Carbondale railroad, which was taken from this layer of rock at Carbondale. These references are marked with an asterisk.
* Fusulina secalica (Say).
* Campophyllum torquium Owen.
Lophophyllum profundum (Milne-Edwards and Haime) Foerste.