412 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
Feet. 
Hucalyptocrinus magnus, EH. elrodi, Stephanocrinus gemmi- 
formis, Dictyonella reticulata, Meristina maria, Homeo- 
spira evar, Nucleospira pisiformis, Anastrophia internas- 
cens, Leptana rhomboidalis, Rhipidomella hybrida, Cal- 
lopora elegantula, “Cl C S2 er Oe eS ee eRe OP on NOt ee eyae een eee 3 
6. Laurel limestone. _ 
Massive, reddish purple argillaceous and suberystalline lime- 
FS}. 0 2 ate cee Ants ioe rd ee ad ly IRE ea Neat re mp ALC aE Ses) pe 25 
5. Osgood limestone. 
Thin-bedded reddish argillaceous limestone holding Stephano- 
erinus osgoodensis and typical Caryocrinus ornatus______. 14 
4, “ Clinton ” formation.4@ i 
White to light brown crystalline fossiliferous limestone with 
greenish brown chert. This layer has yielded the follow- 
ing fossils: Leptena rhomboidalis, Dalmanella elegantula, 
Platystrophia daytonensis, Orthis flabellites, Cyclonema day- 
tonensis, Illenus daytonensis, Calymene vogdesi, Cyrtoceras 
subcompressum, Favosites favosus, F. niagarensis, and Haly- 
SUECS ECOL ULL UES aie oN a ene ce ne ee 1 
Ordovician (Cincinnatian). 
83. Fernvale (Richmond) formation. 
b. Bluish shales with Rhynchotrema capax, Dinorthis sub- 
quadrata, D. proavita, and Rhombotrypa quadrata. 
Mannie clay of Choe rstee sees lac ee i aie eee ee 153 
a. Coarse-grained, cross-bedded, light-colored phosphatic 
limestone with Rhynchotrema capaxr and Strophomena 
NMOXUKOrSHUG, were ibhmesnone 19 
2. Arnheim (‘‘ Warren”) formation. 
Coarsely crystalline phosphatic limestone weathering into 
abundant chert fragments. Dinorthis retrorsa, Leptena 
rhomboidalis, and Rhynchotrema dentatum var., are the 
most abundant brachiopods, while several species of bryo- 
zoa are sometimes so numerous as to fill the entire layer. 
The lowest layer of this formation is of dark-colored con- 
glomeratic material made up of the casts of Cycloras, 
and containing large and small fragments of the underly- 
ing “Hermitage: Hime stom Gs eso es ani ie eae 0-3 
Ordovician (Mohawkian). 
1. Hermitage (‘“‘ Saltillo”) formation. 
Bluish-gray, compact argillaceous limestone layers two to 
five feet thick, alternating with blue shales of equal thick- 
TOSS soto a Re Oe UE oar A eee side a els ats RRO LO ea ieee cae eS TO+ 
BROW NSPORT FURNACE, TENNESSEE. 
In the vicinity of Brownsport Furnace two well-marked glades ex- 
pose a fine section of the various beds belonging to the Beech River, 
Bob, and Lobelville formations. The red limestones and shales of the 
Dixon may be seen at the base of the southern glade, while the young- 
est Paleozoic rocks of the section—the Devonian black shale—were 
exposed in the hillside northwest of the furnace. 
“This name is provisionally employed for the western rocks referred to the 
Clinton by Foerste and others. 
5 Foerste, not Leipers formation, Hayes and Ulrich. 
