﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER IO89 



Page 



chial interior of holotype, X 2, tilted to show cardinal process, chilidial cavity, and 

 cuplike brachiophores ; (27) another brachial interior, X 1, paratype, 117061b; 

 (25, 26) the same specimen in normal and tilted positions, X 2, to show the 

 cardinalia. 



Arline formation (near middle), north side of wagon road in glade, i mile 

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



Plate 78 



Anomalorthis, Atelelasma, Eremotoechia 



A. Eremotoechia alabamensis Cooper, new species 5 I 4 



(1-4) Respectively posterior, side, pedicle, and brachial views of an imperfect 

 specimen showing apical foramen and pseudodeltidium, X i> holotype, 117060b; 

 (9) posterior view of the holotype, X 2, showing pseudodeltidium; (5-8) respec- 

 tively brachial, pedicle, side, and anterior views of another nearly complete speci- 

 men, X 1 j paratype, 117060a. 



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

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



B. Anomalorthis nevadensis Ulrich and Cooper 39 2 



(10-12) Exterior, side, and interior views of the pedicle valve, X 2, holotype, 

 92853c 



Upper Pogonip group {Anomalorthis zone), west base of Lone Mountain, 

 18 miles northwest of Eureka, Roberts Mountains (i°) Quadrangle, Nev. 



C. Anomalorthis oklahomensis Ulrich and Cooper 39 2 



(13) Brachial exterior, X 2, paratype, 92854b; (14-16) respectively exterior, 

 tilted, and side views of the pedicle valve, X 2, lectotype, 92854a. 



Oil Creek formation, NE^ sec. 22, T. 2 S., R. I E., 4 to 5 miles north of 

 Glenn, Carter County, Okla. 

 (17, 18) Brachial impression and the plasticine replica prepared from it, X 1, 

 paratype, 110182. 



Oil Creek formation, Henryhouse Creek, Carter County, Okla. 

 (19, 20) Pedicle interior, tilted and in standard view to show dental plates and 

 muscle area, X 2, paratype, 92855. 



Oil Creek formation (125 feet below the top), U. S. Highway 77, sec. 25, 

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



D. Atelelasma obscurum Cooper, new species 520 



(21) Pedicle exterior, X i, holotype, H70i2d; (26) posterior of the holotype, X 2, 

 showing lateral plates; (22) brachial exterior, X l, paratype, 117012a; (23, 24) 

 exterior and side views of another pedicle valve, X I, paratype, 117012c; (27) 

 posterior view, X 2, of preceding; (25) exterior of another brachial valve, X 2, 

 paratype, 117012b; (28, 29) interior and posterior views of the brachial interior 

 showing cardinalia and chilidium, X 2, paratype, H70l2f ; (30) another brachial 

 interior, X 2, paratype, H70i2i; (31) brachial interior showing cardinalia with 

 brachial processes, X 2, paratype, 117012c. 



Lincolnshire formation (Hogskin member), 0.4 mile east-northeast of Red 

 Hill, 4 miles west-southwest of Thorn Hill, Avondale (T.V.A. 162-SW) Quad- 

 rangle, Tenn. 



Plate 79 

 Atelelasma 



A. Atelelasma decortication Cooper, new species 5 J 8 



(1, 2) Side and exterior of an exfoliated pedicle valve, X I, holotype, 110112a. 

 Murat formation, Murat, Natural Bridge (15') Quadrangle, Va. 



