﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER IO63 



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F. Ptychopleurella glypta Cooper, new species 386 



(28-32) Respectively pedicle, side, brachial, posterior, and anterior views of a 

 complete specimen, X 2, holotype, 116956a; (36-38) pedicle, anterior, and poste- 

 rior views of the holotype, X 3, showing details of the ornamentation and apical 

 plate in posterior view; (33-35) pedicle, side, and brachial views of a small indi- 

 vidual showing lamellae, X 3, paratype, 116956b; (39) brachial interior, X 4, 

 paratype, n6956d. 



Lenoir formation (calcarenite beds below Mosheim limestone), on southwest 

 side of the cemetery behind the Friends Church, north corner of Friendsville, 

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



G. Ptychopleurella oklahomensis Cooper, new species 388 



(40, 41) Exterior and posterior views of the pedicle valve, X 6, holotype, 110095b; 

 (42) same, X2; (43) brachial valve, X 2, paratype, 110095a; (44) same, X 6, 

 showing details of ornamentation. 



McLish formation, section along and west of U. S. Highway 77, sec. 25, 

 T. 2 S., R. 1 E., Carter County, Okla. 



H. Nicolella angulata Cooper, new species 317 



(45, 47) Pedicle and brachial views of a complete but partially exfoliated valve, 

 X 2, holotype, 1 16888; (46) same, X 1. 



Wappinger formation, Wappinger Creek at Rochdale, 4^ miles east-northeast 

 of Poughkeepsie, Poughkeepsie (15') Quadrangle, N. Y. 



Plate 43 

 Glyptorthis, Ptychopleurella 



A. Glyptorthis sp. 3 382 



(1) Brachial view, X 2, of an incomplete specimen, figured specimen, 116951; 



(2, 3) pedicle and brachial views, X 1, of the same. 



Little Oak formation, cut on U. S. Highway 31, \ mile north of bridge at 

 Pelham, Bessemer Iron District (15') Quadrangle, Ala. 



B. Glyptorthis uncinata Cooper, new species 377 



(4, 5) Side and pedicle views of a complete specimen, X 2, paratype, 116941a; 

 (6, 7) interior and exterior of the brachial valve, X 2, paratype, 116941b. 



Lower Bromide (Mountain Lake member), McLish Ranch, sec. 24, T. 1 S., 

 R. 7 E., Johnston County, Okla. 



C. Glyptorthis costellata Cooper, new species 366 



(8) Anterior view, X 6, showing ornamentation, holotype, 110052a. 



Bromide formation (Pooleville member — Oxoplecia gouldi zone), branch of 

 Hickory Creek, NWi sec. 26, T. 5 S., R. I E., Criner Hills, Carter County, 

 Okla. 



D. Ptychopleurella globularis Cooper, new species 385 



(9» T S> l 7) Respectively side, brachial, and pedicle views of an imperfect specimen, 

 X 3, paratype, 116954a; (10) brachial interior, X 3, paratype, 116954b; (n) 

 pedicle interior, X 3, paratype, 116954c; (12, 14, 16) respectively brachial, poste- 

 rior, and pedicle views of an imperfect specimen, X 3, paratype, n6954d; (13) 

 brachial interior, X 2, paratype, 116954c 



Arline formation, 100 yards southwest of the Negro Cemetery, \ mile north- 

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



E. Glyptorthis uniformis Cooper, new species 378 



(18, 19, 21) Respectively brachial, pedicle, and side views of a complete specimen, 

 X 1, paratype, 116944a; (20) brachial view, X 2, of the same. 



Base of Benbolt formation, west slope of the hill £ mile east of the Cedar 

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



