﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER IO99 



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 men, X I, paratype, 110706b; (26-28) brachial, posterior, and side views of an 

 obese specimen, X I, paratype, uo70od; (29) pedicle interior, X I> showing pal- 

 lial marks, paratype, 110700a; (30, 31) interior and exterior of a fine pedicle 

 valve, X 1, paratype, 110700b; (32) interior of a small brachial valve, X I, 

 paratype, 110702a ; (33) enlargement, X 2, of the posterior part of the preceding 

 showing cardinalia ; (34) interior of an imperfect brachial valve, X 2, paratype, 

 110700c. 



Lincolnshire formation, £ mile north of Eidson on old pasture road, Kyles 

 Ford (T.V.A. 170-SE) Quadrangle, Term. 



D. Mimella zvardellana Cooper, new species 489 



(35, 36) Interior and exterior of the brachial valve, X I, holotype, 117055a; 

 (37, 38) exterior and interior of the pedicle valve, X I, paratype, 117055b. 



Wardell formation, Raccoon Valley, | mile northeast of Fleanor Mill, Powell 

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



Plate 91 

 Mimella 



A. Mimella costellafa Cooper, new species 469 



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

 sized specimen, X I, holotype, 110658a; (6) pedicle view, X 2, of the holotype; 

 (7) brachial view of a convex individual, X 2, paratype, 110658b; (7a) same, 

 X 1, in side view. 



Lincolnshire formation (Hogskin member), Sally Cleveland Farm, f mile 

 southwest of Washburn, Dutch Valley (T.V.A. 154-SE) Quadrangle, Tenn. 



B. Mimella similis Cooper, new species 481 



(8-11) Respectively brachial, anterior, side, and pedicle views of a complete 

 specimen, X 1, paratype, 117048a. 



Lincolnshire formation (Hogskin member, 500 feet below the "Holston" 

 marble), Lee Valley Post Office, Lee Valley (T.V.A. 171-NW) Quadrangle, 

 Tenn. 

 (12) Brachial interior, X 2, paratype, 1 10737. 



Lincolnshire formation (Hogskin member), 3 miles west-southwest of Thorn 

 Hill, Avondale (T.V.A. 162-SW) Quadrangle, Tenn. 



C. Mimella similis Cooper, new species 481 



(13-17) Respectively pedicle, posterior, side, brachial, and anterior views of a 

 complete specimen, X 1, holotype, 117046a; (18) pedicle interior, X 2, paratype, 

 117046b. 



Lincolnshire formation (Hogskin member), 0.2 mile northwest on farmer's 

 lane, \ mile southwest of Fleanor Mill, Raccoon Valley, Powell Station (T.V.A. 

 137-SE) Quadrangle, Tenn. 



D. Mimella sp. 1 490 



(19-21) Respectively posterior, pedicle, and brachial views of a small specimen, 

 X I, figured specimen, 117056b; (22-24) respectively side, pedicle, and brachial 

 views of a specimen larger but less well preserved than the preceding, X 1, 

 figured specimen, 117056a. 



Elway formation, cut on U. S. Highway 25W, 4.7 miles south of Clinton, 

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



E. Mimella intermedia Cooper, new species 476 



(25) Posterior part of brachial interior, X 2, paratype, 1 17998. 

 Horizon and locality same as preceding. 



