﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER IO95 



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 junction of west fork of Stone River and U. S. Highway 70, ii miles northwest 

 of Murfreesboro, Tenn. 



D. Plectorthis punctata Cooper, new species 452 



(19-22) Respectively pedicle, side, anterior, and brachial views, X 2, of a paratype, 

 117024; (23) brachial view, X 1, of the same paratype. 



Tulip Creek formation (152 feet above the top of the basal sand), first creek 

 east of U. S. Highway 77, SEjNE|NEi sec. 25, T. 2 S., R. 1 E., Carter County, 

 Okla. 



E. Plectorthis ponderosa Cooper, new species 451 



(24-28) Respectively side, anterior, pedicle, brachial, and posterior views of a per- 

 fect specimen, X I, holotype, 117022a; (29) brachial view, X 1 2. of the holotype; 

 (30-32) respectively posterior, pedicle, and brachial views of a large individual, 

 X I j paratype, 117022b. 



Martinsburg formation (basal part with Brongniartclla referable to the Salona 

 formation), on Virginia County Highway 617 = 910, 0.15 mile north of Green 

 Mount Church, Broadway (15') Quadrangle, Va. 



F. Plectorthis punctata Cooper, new species 452 



(33) Brachial exterior, X 2, holotype, 110836a; (35) anterior of preceding, X 10, 

 showing parallel rows of pits on costae. 



Tulip Creek formation, on West Spring Creek, NWi sec. 6, T. 2 S., R. 1 W., 

 2\ miles east of Pooleville, Murray County, Okla. 



(34) Pedicle exterior, X 2, paratype, 117023b. 



Tulip Creek formation, NE. corner sec. 1, T. 2 S., R. 2 W., 2\ miles east of 

 Pooleville, Murray County, Okla. 



Plate 85 



MlMELLA 



A. Mimella vulgaris (Raymond) 488 



(1-5) Respectively pedicle, brachial, posterior, anterior, and side views of a com- 

 plete specimen, X I, holotype (?), Carnegie Mus. 5512; (6-10) respectively 

 posterior, side, brachial, anterior, and pedicle views of a specimen larger than 

 the preceding, X I, hypotype, 110796; (n, 12) side and brachial views of a large 

 specimen, X 1, hypotype, 110790a. 



Crown Point formation, south side of Valcour Island, Lake Champlain, Platts- 

 burg (15') Quadrangle, N. Y. 



B. Mimella nucha (Butts) 479 



(13, 14) Pedicle and brachial views of a specimen from which the shell has been 

 peeled to show impressions of internal structures, X I, hypotype, 110773c; (15) 

 brachial view of a complete specimen, X 1, hypotype, 110773b; (16-20) respec- 

 tively posterior, pedicle, side, brachial, and anterior views of a somewhat exfo- 

 liated specimen, X h hypotype, 110773a; (21) brachial view of a small individual 

 with well-preserved ornamentation, X I, hypotype, 110773d; (22-26) respectively 

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



Lenoir formation, \\ miles southwest of Philadelphia, Philadelphia (T.V.A. 

 131-NW) Quadrangle, Tenn. 



C. Mimella valcour ensis Cooper, new species 486 



(27-31) Respectively brachial, side, anterior, pedicle, and posterior views, X 1, of 

 the holotype, 1 10792; (32) brachial view, X 2, of the holotype, to show the 

 ornamentation. 



Probably Valcour formation, Valcour Island, Lake Champlain, Plattsburg 

 (15') Quadrangle, N. Y. 



