﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER IO97 



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 supports, X2, paratype, 110804a; (14, 15) two pedicle interiors, X 2, showing 

 muscle scars and pallial marks, paratypes, 110797a, 110797b. 

 Horizon and locality same as preceding. 



C. Mimella biconvexa Cooper, new species 468 



(16-18) Respectively pedicle, side, and posterior views, X I, of the holotype, 

 48755a; (19) impression of the pedicle interior, X 1, paratype, 110652a. 

 Pierce formation, Murfreesboro, Murfreesboro (15') Quadrangle, Tenn. 



D. Mimella sulcata Cooper, new species 483 



(20-24) Respectively anterior, posterior, side, brachial, and pedicle views of a com- 

 plete specimen, X I, holotype, 1 17053. 



Benbolt formation, north side of U. S. Highway 19, if miles southeast of 

 Hansonville Post Office, Brumley (T.V.A. 205-SE) Quadrangle, Va. 



E. Mimella globularis Cooper, new species 474 



(25, 36) Interior and exterior of a pedicle valve, X I, paratype, no687g; (27, 35) 

 same views, X 2, of preceding specimen; (26) another pedicle interior, X 1, 

 paratype 110687c; (28) same as preceding, X2; (29, 37) side and exterior 

 views of a pedicle valve, X 1, holotype, no687d; (30, 31) exterior and side 

 views of a brachial valve, X I, paratype, no687i; (32, 33) respectively X 1 and 

 X2 enlargements of the brachial interior, paratype, 110687a; (34) posterior of 

 brachial interior showing cardinalia, X 2, paratype, 110687! 



Poteet formation (Yellow Branch member), on road beside Yellow Branch, 

 5 miles southeast of Rose Hill, Rose Hill (T.V.A. 161-NE) Quadrangle, Va. 



Plate 88 



Mimella 



A. Mimella globosa ( Willard) 472 



(1-4) Respectively brachial, anterior, pedicle, and side views of medium-sized 

 specimen, X I, hypotype, 117041a; (8) pedicle exterior of the preceding en- 

 larged X 2 to show details of the ornamentation; (5-7) respectively brachial, 

 posterior, and pedicle views of a small individual, X 1, hypotype, 117041b; 

 (9-*3) respectively anterior, brachial, pedicle, side, and posterior of a medium- 

 sized specimen, hypotype, X 1, 110715; (14-17) respectively pedicle, posterior, 

 side, and brachial views of a specimen larger than the preceding, X l> hypotype, 

 110718; (30) pedicle interior, X 2, showing pallial marks, hypotype, 110713a. 



Benbolt part of Dryden formation, west of Rye Cove, Clinchport (T.V.A. 

 188-NW) Quadrangle, Va. 



(18-22) Respectively brachial, anterior, pedicle, posterior, and side views of an 

 obese specimen, X I, hypotype, 110686b; (23) pedicle interior, X 1, hypotype, 

 110686a. 



Benbolt formation, on Virginia Highway 74, 0.2 mile southwest of Bethel 

 Church, \ mile east of the junction with U. S. Highway 54, Hilton (T.V.A. 

 197-NW) Quadrangle, Va. 



(24, 25) Respectively X I and X 2 enlargements of the pedicle interior showing 

 pallial marks, hypotype, 1 10752. 



Dryden formation, 1 mile west of Lone Mountain, Tazewell (T.V.A. 154-NE) 

 Quadrangle, Tenn. 



(26) Brachial interior, X I, hypotype, 1 10680. 



Benbolt formation, on Virginia Highway 74, S2 miles east of the junction 

 with U. S. Highway 54 (Tennessee 71), Hilton (T.V.A. 197-NW) Quadrangle, 

 Va. 



(27, 28) Interior and tilted view of the brachial interior, X I, hypotype, 117042b; 

 (29) same, X 2, showing muscle scars. 



