﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER II95 



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 Botetourt formation, junction Virginia Highways 311 and 114, i mile south- 

 west of Catawba, Salem (15') Quadrangle, Va. 

 (4-8) Respectively anterior, posterior, pedicle, side, and brachial views of a com- 

 plete specimen, X 2, hypotype, H7505d. 



Effna formation, Porterfield Quarry, 5 miles east of Saltville, Maccrady 

 (T.V.A. 218-NW) Quadrangle, Va. 

 (9) Plasticine replica of the brachial exterior, X 2, hypotype, 117506b; (10) exte- 

 rior of the pedicle valve, X 2, hypotype, 117506a. 

 Horizon and locality same as preceding. 



B. Sowerbyella compacta Cooper, new species 778 



(11-14, 23) Respectively pedicle, side, posterior, anterior, and brachial views of a 

 complete specimen, X 2, paratype, 117485a; (21, 22) pedicle and brachial views 

 of another complete specimen, X 2, paratype, 117485b. 



Benbolt formation (lower), road corner -£ mile southwest of Fleanor Mill, 

 Powell Station (T.V.A. 137-SE) Quadrangle, Tenn. 



(15, 17-20) Respectively posterior, pedicle, anterior, side, and brachial views of a 

 complete specimen, X 2, paratype, 117486c; (16) brachial view of another speci- 

 men, X 2, paratype, 117486a; (24) interior of the brachial valve showing car- 

 dinalia and septa, X 2, paratype, 1 17486b. 



Benbolt formation, 0.3 mile north-northwest of Memorial School, Rye Cove, 

 Clinchport (T.V.A. 188-NW) Quadrangle, Va. 



C. Sozverbyella aequistriata ( Willard) 775 



(25, 26) Respectively X 1 and X 2 enlargements of a complete specimen, some- 

 what narrower than usual, hypotype, 117478a; (27-31) respectively pedicle, side, 

 anterior, posterior, and brachial views of a complete specimen, X 2, hypotype, 

 H7478f ; (32, 33) respectively X 1 and X 2 enlargements of a well-formed indi- 

 vidual showing somewhat alate cardinal extremities, hypotype, H7478g; (34) 

 brachial interior, X 2, showing cardinalia and septa, hypotype, 117478b. 



Wardell formation, bend of the railroad just west of Liberty Hill, Dutch 

 Valley (T.V.A. 154-SE) Quadrangle, Tenn. 



D. Sowerbyella variabilis Cooper, new species 798 



(35. 36) Respectively X 1 and X 2 enlargements of a complete specimen, paratype, 

 H7539b; (43) ornamentation of the preceding specimen, X5; (37) brachial 

 view of a complete specimen, X I, paratype, 117539a; (38-42) respectively ante- 

 rior, posterior, brachial, side, and pedicle views, X 2, of the preceding specimen. 

 Bromide formation (Pooleville member — 168 feet below massive limestone, 

 Oxoplecia gonldi zone), Spring Creek, sec. 7, T. 2 S., R. 1 W., Murray County, 

 Okla. 



Plate 198 

 Sowerbyella 



A. Sozverbyella valgata Cooper, new species 801 



(1, 2) Respectively X I and X 2 enlargements of a complete specimen, paratype, 

 117543b; (3-6) respectively anterior, posterior, pedicle and side views of another 

 complete specimen, X 2, holotype, 117543a; (11) pedicle view, X I, of the 

 holotype; (12-14) posterior, anterior, and brachial views of a complete specimen. 

 X 2, paratype, H7543f; (19) pedicle interior, X 2, showing median ridge and 

 diductor tracks, paratype, 117543d; (20) brachial interior showing cardinalia 

 and septa, X 2, paratype, 117543c. 



Bromide formation (Mountain Lake member), cut on Oklahoma Highway 18, 

 1.8 miles south of Sulphur, sec. 11, T. 1 S., R. 3 E., Murray County, Okla. 

 (7-9, 15, 16) Respectively brachial, posterior, anterior, side, and pedicle views of a 



