68 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 
whereby each may be separated, but the state of our paleontology and sedi- 
mentary petrology has not yet reached this desired goal. The name “Holston” 
in the literature has been applied to calcarenites demonstrably of Lenoir, Lin- 
colnshire, “Athens,” Benbolt, and Wardell associations. The name “Murat,” 
which was applied to Lincolnshire calcarenites, was early abandoned in favor of 
Holston. Because of the uncertainty and inaccuracy of the present application 
of Holston, the name should be dropped as a stratigraphic term. 
Hostler member of Hatter formation.—This member consists of tan- 
weathering silicious or argillaceous limestone with ripple-marked surfaces. The 
thickness ranges from 35 to 69 feet. Kay (1944, p. 10) designated the type sec- 
tion as Union Furnace where it overlies the Grazier member of the Hatter forma- 
tion and underlies the Snyder member of the Benner formation. Hostler rock 
is so impure that it is never quarried for commercial lime with the result that it 
is often left as a “rib” or a hanging wall in many of the large quarries. Butts 
confused this formation with his Lemont member and related it to the Ridley 
formation because it contains Maclurites. Although this correlation with Ridley 
is believed to be correct, Butts was actually thinking of the Ridley as Lenoir or 
Chazy, which it is not. 
The Hostler member contains the following brachiopods : 
Ancistrorhyncha sp. = A. crassa Cooper 
Ancistrorhyncha sp. aff. A. costata Cooper = A. costata Ulrich and Cooper 
*Camarotoechia sp. cf. C. plena (Hall) 
*Campylorthis deflecta (Conrad) = Chaulistomella 
*C. magna (Schuchert and Cooper) = Chaulistomella 
Doleroides sp. 
Glyptorthis sp. 
Fascifera subcarinata Ulrich and Cooper 
*Leptaena ? sp. 
Opikina sp. aff. inquassa (Sardeson) 
Opikina sp. cf. O. magna (Butts) 
Opikina sp. aff. O. minnesotensis (N. H. Winchell) 
*Opikina sp. aff. O. septata Salmon 
Pionodema minuscula Willard 
Pionodema sp. 
Rostricellula ovata Cooper 
Sowerbyella sp. 
Strophomena sp. aff. medialis Butts 
Strophomena sp. 
Strophomena sp. 
Correlation of Hostler member—Kay (1944, p. 12) correlates the Hostler 
member of the Hatter formation with the Benbolt formation of Virginia. This 
correlation is believed to be incorrect because the formation contains no species 
in common with the Benbolt. The characteristic Dinorthis transversa Willard 
is not present, nor is the host of other species and genera having affinities with 
the Arline suite. Actually the fauna of the Hostler has its ties with beds higher 
than the Benbolt, specifically with the Wardell formation. Wardell ties appear 
in the Ancistrorhyncha, not yet known in the Benbolt, Fascifera subcarinata, 
