PART I CHAZYAN AND RELATED BRACHIOPODS—COOPER 63 
Opikina sp. 
Pionodema ? sp. 
Rhynchocamara sp. cf. R. plicata Schuchert and Cooper = Camerella cf. C. plicata Schuchert 
and Cooper 
Strophomena sp. 
Correlation of Eyer member.—The faunal list indicates correlation with the 
suite of rocks from Benbolt up. Campylorthis, and Strophomena together with 
a Camereila suggestive of C. plicata Schuchert and Cooper, indicate correlation 
at about the level of the Wardell. 
Fannettsburg member of Shippensburg formation.—This member (Craig, 
1949, p. 722), at its type section 1 mile S. 70° W. of St. Thomas, Pa., consists 
of 39 feet of light-gray crystalline limestone in heavy beds. The Fannettsburg 
overlies the Pinesburg member of the Shippensburg formation in eastern belts. 
It is conformably overlain by the Doylesburg formation. In western belts it is 
overlain unconformably by the Mercersburg formation. In eastern belts the 
member is fine-grained, dark gray, and slabby, but westward becomes more 
coarsely granular, the two types of lithology intertonguing. The member is thick- 
est, 263 feet, in the railroad cut southwest of Marion, but it thins rapidly to the 
northeast and west to 7 feet in the former direction and 19 to 55 feet to the west. 
Craig (1949, p. 726) correlates the member with the upper part of the Hostler 
and the lower part of the Snyder. The Hostler member contains numerous 
Solenopora, a feature also characteristic of the Fannettsburg. Cryptophragmus 
occurs in the upper part of the Fannettsburg and forms the basis for the corre- 
lation with the Snyder. 
Fossils are said to be common in the Fannettsburg, and the following brachio- 
pods are recorded by Craig (1949, p. 724) : 
Campylorthis sp. cf. C. magna Schuchert *Opikina sp. aff. O. ampla Wilson 
and Cooper = Chaulistomella sp. *Opikina sp. aff. O. gloucesterensis Wilson 
*Corineorthis sp. *Opikina sp. cf. wagneri (Okulitch) 
Glyptorthis sp. *Oxoplecia simulatrix (Bassler) 
*Hebertella sp. Resserella sp. 
Hesperorthis tricenaria (Conrad) cf. Rostricellula plena (Hall) 
Leptaena ? sp. Sowerbyella sp. aff. S. alternata Butts 
Leptaena sp. cf. L. homostriata Butts Sowerbyella sp. cf. aequistriata (Willard) 
Leptobolus sp. “Sowerbyella” sp. cf. “S.” pisum (Ruedemann) 
Mimella sp. Strophomena sp. 
*Multicostella sp. Zygospira recurvirostris (Hall) 
Correlation of Fannettsburg member.—Its position between Pinesburg and 
Doylesburg members of the Shippensburg formation indicates correlation with 
Wardell, but Cryptophragmus and Zygospira indicate that it may have affinities 
with the Witten formation. 
Farragut formation.—This name was proposed by C. E. Prouty (1946, p. 
1156) for the “Holston” of the Concord, Tenn., belt. Prouty believes the name 
“Holston” to have no validity as a formation because Keith proposed the term 
for marbles regardless of their stratigraphic position. The type section of the 
Farragut limestone is 1.4 miles east of Lowes Ferry, 94 miles southwest of Knox- 
