BAM Er 
All specimens coated and magnified x 31.5 
Fics. I, 2, 5,6. Spathognathodus plumulus plumulus sp. nov. 
1a. Outer lateral view of holotype X 476. 1b. Oral view of holotype X 476. tc. Aboral 
view of holotype X 476. 2a. Outer lateral view of paratype X 379. 2b. Oral view of paratype 
X 379. 2c. Aboral view of paratype X 379. 5. Outer lateral view of paratype X 380, 
posterior portion missing. 6. Outer lateral view of juvenile paratype X 381, anterior aboral 
portion of blade missing. 
Fics. 3, 4. Spathognathodus plumulus nodosus subsp. nov. 
3a. Outer lateral view of paratype X 383, posterior portion missing. 3b. Oral view of paratype 
X 383. 3c. Aboral view of paratype X 383. 4a. Outer lateral view of holotype X 382, 
posterior portion missing. 4b. Oral view of holotype X 382. 4c. Aboral view of holotype 
X 382. 
Fics. 7, 8. Spathognathodus plumulus shirleyae sp. et subsp. nov. 
7a. Outer lateral view of paratype X 385, posterior portion missing. 7b. Oral view of paratype 
X 385. 8a. Outer lateral view of holotype X 384. 8b. Oral view of holotype X 384. 8c. 
Aboral view of holotype X 384. 
Fics. 9-13. Clydagnathus cavusformis gen. et sp. nov. 
g. Oral view of paratype X 72. 10. Oral view of paratype X 73. Ita. Outer lateral view of 
holotype X 75. 11b. Inner lateral view of holotype X 75. t11c. Oral view of holotype X 75. 
11d. Aboral view of holotype X 75. 12a. Outer lateral view of paratype X 71. 12b. Inner 
lateral view of paratype X 71. 12c. Oral view of paratype X 71. 12d. Aboral view of para- 
type X 71. 13a. Outer lateral view of paratype X 74, posterior portion missing. 13b. Inner 
lateral view of paratype X 74. 13c. Oral view of paratype X 74. 13d. Aboral view of 
paratype X 74. 
