e 
No. 1621. LATE NIAGARAN STRATA—PATE AND BASSLER. 423 
Favosites cristatus, F’. cristatus-major, F’. discus, F. favosus, F. louis- 
wvillensis, F. niagarensis, F. spongila, Heliolites subtubulata, H. inter- 
stinctus, Plasmopora follis, Calceola tennesseensis, Thecia major, and 
T. minor. Short Creek, near Linden, Tennessee, is a famous locality 
for these corals, and most of the West Tennessee specimens in paleon- 
tological collections were procured here. The strata, however, are 
exposed in Perry County from Linden to a point about 2 miles north 
of Lobelville, and, as the two faunal divisions which we recognize in 
the formation are well shown in the vicinity of the latter place, the 
name Lobelville is proposed for this formation. West of the Ten- 
nessee River the Lobelville formation is widely distributed, but is not 
so continuously exposed. Its presence in the Brownsport Furnace 
section has been indicated on a previous page, and other localities 
where the formation is well shown, especially in the southern half of 
Decatur County, might be named. 
Red, purple, and blue shales, holding many -bryozoa and a number 
of the corals noted above, follow the Conchidium limestone of the Bob 
formation and are succeeded by the strata in which the coral fauna 
is so well developed. These strata, for which we employ the sub- 
division Bryozoan zone, seem to be but 9 feet thick in the Mousetail 
section. At Lady’s Bluff, where a more detailed section was made | 
(page 426), a thickness of 22 feet was noted. Peeler’s Pond, a locality 
1 mile northwest of Whitfield, in Hickman County, shows a section 
of red shales at the bottom closely resembling the Dixon lithologi- 
cally, and of blue shales at the top. These red shales are without 
doubt not Dixon, but are the bryozoan beds noted at Mousetail and 
Webb’s Mill. The bryozoa of these beds are mainly of new species. 
Several species of /istulipora and a new Nicholsonella are particu- 
larly abundant. The occurrence of these red strata at the base of the 
Lobelville formation, as well as similar red rocks at the same position 
in the Bob formation, is believed to be very significant in indicating 
previous land conditions. 
Section at Peeler’s Pond, Hickman County, Tennessee. 
Devonian. Feet. 
Chatranoosa web lackays hall rns eisrem ene a eyo es ee ae rel ev ye SS — 
Silurian. 
Decatur limestone. 
Massive wintio. Ihmastione 0 ees eee 6 
Lobelville formation. 
Coral zone. Shales and thin bedded limestone with an abun- 
CAINE Oi IMUBOSWUAS, GWOI a 2 = se ees aha OSU ee Ry Re PAT 
Bryozoan zone. 
Soft blue shale with many bryozoa and a few corals________ 23 
Red clayey shales, greatly resembling Dixon formation, but 
containing characteristic Lobelville bryozoa and corals____ 8+ 
Bottom not exposed. 
