﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER 1057 



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 Benbolt formation, wash on east side slope in pasture, 0.2 mile south of the 

 middle fork of Moccasin Creek, \\ miles due south of Hansonville, Hanson- 

 ville (T.V.A. 205-SW) Quadrangle, Va. 

 (18-21) Pedicle, brachial, posterior, and side views of a complete specimen, X 2, 

 paratype, 116871b. 



Benbolt (lower), west slope of hill \ mile east of Cedar Point School, Hilton 

 (T.V.A. 197-NW) Quadrangle, Va. 

 (23) Brachial interior, X 3, paratype, 109832a; (24, 25) brachial and pedicle 

 valves of a complete specimen, X 3, paratype, 109832b. 



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

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



C. Orthambonites blountensis Cooper, new species 298 



(26-28) Brachial, pedicle, and side views, X 1, of the holotype, 109812b; (29) 

 brachial view, X 2, of holotype; (30, 31) exterior and interior of pedicle valve, 

 X 2, paratype, 109812a; (32) exterior of another pedicle valve, X 2, paratype, 

 109812b; (33, 34) interior and exterior of brachial valve, X 2, paratype, 109812c. 

 Arline formation, north side of wagon road in glade, \ mile southeast of 

 Friendsville, Concord (T.V.A. 138-S W) Quadrangle, Term. 



D. Orthambonites bellns Cooper, new species 295 



(35. 36) Pedicle interior, respectively titled to show dental plates and normally 



posed, X 2, holotype, 116866c; (38) pedicle exterior, X 1, paratype, 116866a; 

 (43, 44) brachial exterior, respectively X2 and X I, paratype, n6866f; (45) 

 interior, X 2, of same ; (46, 47) brachial interior, X I and X 2, paratype, 

 116866c 



Chatham Hill formation, north slope Walker Mountain, 1.2 miles S. 31 ° E. of 

 Sharon Springs, Burkes Garden (15') Quadrangle, Va. 

 (37, 39) Interior and exterior of a pedicle valve, X 2, paratype, 109799a; (40) 

 brachial interior, X 2, paratype, 109799b; (41, 42) exterior and interior of a 

 brachial valve, X 2, paratype, 109799c; (48, 51) interior and exterior of a small 

 pedicle valve, X 3, paratype, I09799d; (49, 50) interior and exterior of a small 

 brachial valve, X 3, paratype, 1097996. 



Chatham Hill formation, Grayson Farm, 4 miles southwest of Bland, Va. 



Plate 36 

 Orthambonites 



A Orthambonites friendsvillensis Cooper, new species 303 



(1) Brachial interior, X 2, paratype, loo827g; (2, 4, 5, 7) pedicle, posterior, bra- 

 chial, and side views of a complete specimen, X 1, holotype, 109827b; (6) bra- 

 chial view, X 2, of the holotype; (3) brachial views of another complete speci- 

 men, X 2, paratype, 109827c; (8) pedicle interior, X 2, paratype, 109827b. 



Arline formation, north side of wagon road in glade, \ mile southeast of 

 Friendsville, Concord (T.V.A. 138-SW) Quadrangle, Tenn. 



B. Orthambonites bielsteini Cooper, new species 296 



(9, 12, 13, 15, 17) Brachial, side, posterior, anterior, and pedicle views of a com- 

 plete specimen, X 1, paratype, 109803b; (10, n, 14) brachial, pedicle, and side 

 views, X 1, of another complete specimen, holotype, 109803a. 

 Martinsburg formation (Salona equivalent), 14 miles north of Staunton, Va. 

 (16) Brachial interior somewhat doubtfully referred to this species, X 2, figured 

 specimen, 109845a. 



Benbolt formation, \ mile east of Speers Ferry, Clinchport (T.V.A. 188-NW) 

 Quadrangle, Va. 

 (18) Brachial view of the exterior, X I, figured specimen, 109801. 



