PART I CHAZYAN AND RELATED BRACHIOPODS—-COOPER 45 
biana formation and is regarded as a lateral facies of the Little Oak formation 
(see below). 
Athens shale of Virginia.—This has been renamed in the Bristol area and 
Catawba Valley the Paperville formation by Cooper and Cooper. The graptolite 
shales in the Saltville thrust block are called Rich Valley formation by Cooper 
and Cooper (see below). 
Athens limestone-——The ash-weathering black limestones of Virginia, which 
were called Athens by Butts, were regarded as a facies of the Edinburg forma- 
tion for which Campbell’s (1905) name “Liberty Hall” was revived by Cooper 
and Cooper (1946). 
Attalla formation.—A coarse conglomerate at the base of the Chickamauga 
limestone in Birmingham Valley, Alabama (Butts, 1911, p. 37). The conglomer- 
ate is patchy in occurrence. This conglomerate, together with red and green 
shales at the base of the Chickamauga which the writer includes in the name 
Attalla, is suggestive of the Blackford lithology of Tennessee and Virginia but 
obviously deposited at a different time than the Blackford. 
Only one brachiopod, Lingulella fostermontensis (Butts), has been taken from 
the shaly phase of the Attalla on the Birmingham Quadrangle. 
Bacon Bend member of Sevier formation.—R. B. Neuman (1956, p. 162) 
proposed this name for interbedded gray and red calcareous shale and siltstone 
with some non-red beds possessing submarine slump structures. The type sec- 
tion is near Bacon Bend on the Tennessee River, Vonore (T.V.A. 139-SW) 
Quadrangle. The formation contains a few poorly preserved fossils: 
Pionodema camerata Cooper 
Rostricellula sp. 
Zygospira sp. 
Bays formation.—This name was proposed by Keith (1895, p. 4) for the 
great succession of red beds in Bays Mountain, northeast Tennessee. These 
red beds contain a considerable thickness of clean white quartzite. The Bays 
is variable in thickness but in places is many hundreds of feet thick. It is also 
identified in the Catawba Valley belt. 
Brachiopods taken from the Bays are: 
Ectenoglossa ? rubra Cooper 
Pseudolingula luttrellensis Cooper 
Correlation of Bays formation—Fossils taken just under the base of the 
Bays formation in Tallassee Quadrangle at Fourmile Church are identified as 
a new species of Pionodema (P. camerata). This suggests that the Bays rests 
on rocks equivalent to part of the Witten formation. The same conclusion was 
reached from fossils collected under the Bays in Bays Mountain at Guthrie Gap, 
Bulls Gap (T.V.A. 171-SE) Quadrangle, where Zygospira occurs. The earliest 
known appearance of this fossil elsewhere in the Appalachians is in the Witten 
formation. 
Benbolt formation.—This formation was described by B. N. Cooper and 
C. E. Prouty (1943, p. 868), and its type section was designated as exposures 
