78 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 127 
Onniella fertilis (Ulrich) 
Rafinesquina trentonensis (Conrad) 
Rhynchotrema sp. 
Sowerbyella curdsvillensis (Foerste) 
Zygospira sp. 
Brachiopods from Sinuites zone at base of Martinsburg in Pennsylvania listed 
by Bassler (1919, p. 165) are: 
Christiania lamellosa Bassler = Bimuria lamellosa (Bassler ) 
Dalmanella edsoni Bassler = Reuschella americana Cooper 
D, testudinaria (Dalman) var. = D. sculpta Cooper 
Leptaena tenuistriata Sowerby var. = L. ordovicica Cooper 
Leptobolus ovalis Bassler = Elliptoglossa ovalis (Bassler) 
*Lingula riciniformis Hall = ? 
Strophomena sculpturata Bassler = S. ? sculpturata Bassler 
Triplecia (Cliftonia) simulatrix Bassler = Oxoplecia simulatrix (Bassler) 
Meadow marble.—This name is applied (C. H. Gordon, 1924, p. 39) to a 
calcarenite lens located southwest of Friendsville, Tenn., which is near the base 
of the Sevier formation. It contains numerous fossils, especially brachiopods, 
but the specimens are difficult to identify accurately because of poor preserva- 
tion. The genera present in the formation are listed below. 
Cyrtonotella sp. Paurorthis sp. 
Glyptorthis sp. Protozyga sp. 1 
Oxoplecia sp. Sowerbyella sp. 
Mercersburg formation.—This formation was proposed by Craig (1949, 
p. 731) for “dark grey, fine-grained, thin crinkly- and thick evenly-bedded blue- 
grey weathering limestones with an interval of tan to medium-grey, slabby, buff- 
weathering limestone at the base.” The type section is the railroad cut 2 miles 
southwest of Marion, Pa. The formation thins from 235 feet at the type section 
to 155 feet at Middle Spring to the northeast, and to less than 100 feet in the 
belts to the northwest. The formation is composed of the Housum and Kauff- 
man members. The brachiopods reported by Craig are listed under the member 
names, 
Moccasin formation.—This name is applied to the red and yellow mudrock 
overlying the Witten formation and underlying the Eggleston formation. This 
rock is widespread in southwestern Virginia and East Tennessee. In the western 
belts occasional fingers of calcilutite appear. In Sequatchie Valley, Tenn., 
equivalents of the Moccasin are referred to Lebanon and Carters limestones. 
Pseudolingula luttrellensis Cooper 
Zygospira lebanonensis Cooper 
Mosheim formation (=facies).—This is really a facies rather than a 
formation and has been widely misidentified as a formation. The name should 
be used only for calcilutites associated with the restricted Lenoir formation in 
the southeastern belts and their equivalents. At the type section, the formation 
overlies the Knox dolomite but underlies Lenoir lithology. Northeast of Friends- 
ville typical Mosheim appears, sandwiched between beds with typical Lenoir 
