PLATE 6 
All specimens coated and magnified x 31.5 
Fic. 1. Pseudopolygnathus cf. fusiformis Branson & Mehl 
a. Aboral view of specimen X 552. b. Oral view of specimen X 552. 
Fic. 2. Pseudopolygnathus multistriatus Mehl & Thomas 
a. Oral view of specimen X 484. b. Aboral view of specimen X 484. c. Lateral view of 
specimen X 484. 
Fic. 3. Pseudopolygnathus sp. A. 
a. Oral view of specimen X 515. b. Aboral view of specimen X 515. c. Lateral view of 
specimen X 515. 
FIGs. 4, 5, 7, 10-12. Pseudopolygnathus primus Branson & Mehl 
4a. Aboral view of specimen X 546. 4b. Oral view of specimen X 546. 4c. Lateral view of 
specimen X 546. 5a. Aboral view of specimen X 497. 5b. Oral view of specimen X 497. 
7a. Aboral view of specimen X 499. 7b. Oral view of specimen X 499. 7c. Lateral view of 
specimen X 499. 10a. Aboral view of specimen X 500. tob. Oral view of specimen X 500. 
toc. Lateral view of specimen X 500. 11a. Aboral view of specimen X 549. I1b. Oral view 
of specimen X 549. t11c. Lateral view of specimen X 549. 12a. Aboral view of specimen 
X 498. 12b. Oral view of specimen X 498. t12c. Lateral view of specimen X 498. 
Fic. 6. Pseudopolygnathus postinodosus sp. nov. 
a. Aboral view of holotype X 496. b. Oral view of holotype X 496. c. Lateral view of 
holotype X 496. 
Fic. 8. Pseudopolygnathus dentilineatus E. R. Branson 
a. Aboral view of specimen X 438. b. Oral view of specimen X 438. c. Lateral view of 
specimen X 438. 
Fic. 9. Spathognathodus sp. nov. 
a. Oral view of specimen X 518. b. Aboral view of specimen X 518. c. Lateral view of 
specimen X 518. 
