﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER IO45 



Page 

 Oranda formation, on Virginia Highway 55, 0.4 mile west of junction with 

 U. S. Highway 11, north edge of Strasburg, Strasburg (15') Quadrangle, Va. 



E. Acrotreta gemma Billings 246 



(10, 11) Posterior and anterior views of a pedicle valve, X 6, figured specimen, 

 116816a. 

 Table Head series (upper), Table Point Cove, Newfoundland. 



F. Obolus sp. 2 192 



(12, 13) Interior and the impression of same valve, X 3, showing muscle and pal- 

 lial marks, figured specimens, 116790a and 116790b. 



Blackford formation (shale below "Mosheim" but above Knox dolomite), 

 about i mile east of Rocky Point, Natural Bridge Special (15') Quadrangle, 

 Va. 



G. Petrocrania sp. 1 290 



(14) Interior of brachial valve showing muscle scars, X 2, figured specimen, 

 109776a. 



Ridley formation, U. S. Highway 27, just northwest of Chickamauga Creek, 

 Kensington (T.V.A. 106-SE) Quadrangle, Ga. 

 H. Philhedra ? sp. 1 292 



(15) Impression of the brachial interior, X 2, figured specimen, 109761. 

 Bromide formation (Mountain Lake member), near the northeast corner 



N Wi sec. 27, T. 1 S., R. 2 E., 3 miles northwest of Dougherty, Murray County, 

 Okla. 

 I. Schizotreta microthyris Cooper, new species 278 



(16) Well-preserved but imperfect pedicle valve, X 2, holotype, 109640. 

 Oranda formation (5 feet below top), on U. S. Highway 11, 1 mile southwest 



of Strasburg, Strasburg (15') Quadrangle, Va. 

 J. Schizambon sp. 2 2 7° 



(17) Young pedicle valve, X 6, figured specimen, 109687. 



Pratt Ferry formation, 0.2 mile south of Pratt Ferry, Blocton (15') Quad- 

 rangle, Ala. 



K. Obolellina dixonensis Cooper, new species 230 



(18, 19) Interior impression of brachial valve, X2 and X I, paratype, 71814b; 

 (20, 21) impression of another brachial interior, X 2, X 1, holotype, 71814a. 



Platteville formation (just above sponge bed), Truman's Quarry, 2 miles 

 northwest of Dixon, Dixon (15') Quadrangle, 111. 



L. Schizambon microthyris Cooper, new species 278 



(22) Pedicle exterior showing large foramen, X I. paratype, 116928a; (23) exte- 

 rior of brachial valve, X 1, paratype, 116928b; (24) imperfect brachial valve 

 showing spines, X 3, paratype, 116928c. 



Wardell formation, south of road, \ mile east-northeast of Belfast Mill, Salt- 

 ville (T.V.A. 212-NE) Quadrangle, Va. 



Plate 23 

 Elliptoglossa, Lingulops 



A. Lingulops norwoodi (James) 236 



(1) Brachial exterior, X 6, figured specimen, 45219a. 

 Trenton, West Covington, Ky. 



(2) Impression of brachial interior, X 6, figured specimen, 15863a; (3) replica, 

 X 6, of the brachial interior prepared from preceding. 



Trenton, Ludlow, Ky. 



