﻿PART II CHAZYAN AND RELATED BRACHIOPODS — COOPER II4I 



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C. Rostricellula parva Cooper, new species 643 



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

 holotype, X 2, 117223a; (32) brachial view of the holotype, X I. 



Bromide formation (Pooleville member — middle of bed 2), Spring Creek, 

 sec. 17, T. 2 S., R. 1 W., Murray County, Okla. 



D. Rostricellula ? angulata Cooper, new species 632 



(33-37) Respectively brachial, anterior, pedicle, side, and posterior views of a 

 complete specimen, X I, paratype, 117214b; (38-42) respectively posterior, bra- 

 chial, side, anterior, and pedicle views, X 1, of the holotype, 117214a; (43-46) 

 respectively anterior, brachial, side, and pedicle views, X iz, of the holotype. 



Lower part of dark gray shale under Eureka quartzite, north-facing nose of 

 hill 8167, Martins Ridge, Monitor Range, Roberts Mountains (1°) Quadrangle, 

 Nev. 



E. Rostricellula transversa Cooper, new species 651 



(47-5 1 ) Respectively posterior, anterior, side, brachial, and pedicle views of a 

 complete specimen with damaged beak, X 1, paratype, 117229a; (52, 53) pedicle 

 and brachial views, X 2, of the preceding specimen. 



Bromide formation (Pooleville member), £ mile west of U. S. Highway yy, 

 sec. 25, T. 2 S., R. 1 E., Carter County, Okla. 



Plate 135 

 Rostricellula 



A. Rostricellula ainsliei (N. H. Winchell) 631 



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

 plete specimen, X 1, hypotype, 24866a. 



Decorah formation (Spechts Ferry member), Elmira, Olmstead County, Minn. 

 (6, 7) Two views of the posterior of the brachial valve showing the long crura 

 and their bases, X 3, hypotype, 48943a. 



Decorah formation (Spechts Ferry member), Chatfield, Fillmore County, 

 Minn. 



B. Rostricellula missouriensis (Fenton and Fenton) 641 



(8-10) Pedicle, side, and brachial views of a silicified specimen, X I, figured 

 specimen, 11 1488. 



Barnhart (or Macy) formation, i£ miles north of the Chicago Summer School 

 Camp, Weingarten (15') Quadrangle, Mo. 



C. Rostricellula orientalis ( Billings) 642 



(11-15) Respectively anterior, side, posterior, brachial, and pedicle views of a 

 complete specimen, X 2, hypotype, 111490a. 



Mingan formation, Harbor Island, Mingan Group, St. Lawrence River, 

 Canada. 



D. Rostricellula nucleolata Cooper, new species 642 



(16-20) Respectively pedicle, posterior, brachial, anterior, and side views, X i> of 

 the holotype, 48984a; (21-25) respectively pedicle, posterior, brachial, side, and 

 anterior views, X 2, of the holotype. 

 Platteville formation (lower buff = Pecatonica member), Minneapolis, Minn. 



E. Rostricellula pulchra Cooper, new species 646 



(26-30) Respectively posterior, pedicle, anterior, brachial, and side views of a 

 complete specimen, X I, holotype, 117224b; (31-35) respectively posterior, ante- 

 rior, pedicle, brachial, and side views, X 2, of the preceding specimen. 



Decorah formation (Guttenberg member — Rhinidictya bed), Mississippi River 

 Bluffs, St. Paul, Minn. 



