﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER I083 



Page 

 enlargements of the pedicle interior, showing muscle area and accessory articu- 

 lating ridges on the cardinal extremities, paratype, 982 I2g; (14) posterior 

 portion of the brachial interior showing cardinalia, X 2 , paratype, 110484b. 



Wardell formation, Lloyd Carter's barn, 0.8 mile by road northeast of Rye 

 Cove School, Clinchport (T.V.A. 188-NW) Quadrangle, Va. 



Plate 69 



Campylorthis, Chaulistomella 



A. Campylorthis deUecta ( Conrad) 430 



( 1 ) Posterior view showing pseudodeltidium and chilidium, X 2, hypotype, 

 36101a; (2-6) respectively posterior, anterior, brachial, side, and pedicle views, 

 X I, of the preceding specimen. 

 Platteville formation, Highland, Iowa County, Wis. 



B. Chaulistomella rectangulata Cooper, new species 442 



(7-1 1) Respectively side, posterior, brachial, pedicle, and anterior views of a com- 

 plete specimen, X 1, paratype, 117005a. 



Wardell formation (Hesperorthis-Camerella beds), road cut on U. S. High- 

 way 25E, i mile north of Indian Creek, Evans Ferry section, Howard Quarter 

 (T.V.A. 162-NW) Quadrangle, Term. 

 (12-16) Respectively posterior, side, pedicle, anterior, and brachial views of a com- 

 plete specimen, X J i holotype, n 7006. 



Wardell formation (just above Hespcrorthis bed), same locality as preceding. 



C. Chaulistomella inaequistriata Cooper, new species 435 



(17-21) Respectively brachial, posterior, anterior, side, and pedicle views of a com- 

 plete specimen, X I, paratype, 116997b. 



Wardell formation (20 feet below the top), on U. S. Highway 58, \ mile 

 west of Danlboone Yard, Clinchport (T.V.A. 188-NW) Quadrangle, Va. 



D. Chaulistomella inaequistriata Cooper, new species 435 



(22) Pedicle interior, X 2, showing muscle area, pedicle callist, and articulating 

 ridges on cardinal extremity, paratype, 982 I2f. 



Wardell formation, Lloyd Carter's barn, 0.8 mile by road northeast of Brick 

 School at Rye Cove, Clinchport (T.V.A. 188-NW) Quadrangle, Va. 



E. Chaulistomella lebanonensis Cooper, new species 437 



(23) Brachial interior, X 2, showing unusual development of pallial trunks, para- 

 type, 110534a. 



Lebanon formation, cut on U. S. Highway 41, f mile south of Knox Branch, 

 9 miles southeast of Murfreesboro, Tenn. 



Plate 70 



Chaulistomella, Valcourea 



A. Valcourea semicarinata Cooper, new species 410 



(1, 2) Pedicle and brachial exteriors, X I, paratype, 98179; (3) pedicle exterior, 

 X 1, of the holotype, no228d; (6) posterior showing cardinal process, X 1, 

 holotype; (8, 9) pedicle and brachial exteriors, X 2, of the holotype; (4, 10) 

 respectively X 1 and X 2 enlargements of the pedicle interior, showing form of 

 muscle scar, paratype, H0228e; (5) interior of an imperfect brachial valve, X 2, 

 paratype, ii0228g; (7) posterior view of the preceding, X 3, showing carinate 

 myophore of cardinal process. 



Arline formation, Porterfield Quarry, 5 miles east of Saltville, Maccrady 

 (T.V.A. 218-NW) Quadrangle, Va. 



