PLATE 8 
All specimens coated and magnified x 31.5 
Fics. 1-4. Spathognathodus cf. campbelli Rexroad 
1a. Lateral view of specimen X 451. 1b. Aboral view of specimen X 451. 1c. Oral view of 
specimen X 451. 2a. Lateral view of specimen X 435. 2b. Aboral view of specimen X 435. 
2c. Oral view of specimen X 435. 3a. Lateral view of specimen X 452. 3b. Oral view of 
specimen X 452. 3c. Aboral view of specimen X 452. 4a. Lateral view of specimen X 450. 
4b. Oral view of specimen X 450. 4c. Aboral view of specimen X 450. 
Fic. 5. Gnathodus simplicatus sp. nov. 
a. Lateral view of paratype X 88. b. Oral view of paratype X 88. c. Aboral view of 
paratype X 88. 
Fic. 6. Gnathodus cuneiformis Mehl and Thomas 
a. Lateral view of specimen X98. b. Oral view of specimen X98. c. Aboral view of 
specimen X 98. 
Fics. 7, 8, 12, 13. Spathognathodus cf. cristulus Youngquist & Miller 
7a. Lateral view of specimen X 554. 7b. Oral view of specimen X 554. 7c. Aboral view of 
specimen X 554. 8a. Lateral view of specimen X 555. 8b. Oral view of specimen X 555. 
8c. Aboral view of specimen X 555. I2a. Lateral view of specimen X 556. 12b. Oral view 
of specimen X 556. 31a. Lateral view of specimen X 557. 13b. Oral view of specimen X 557. 
Fics. 9-11. Spathognathodus scitulus (Hinde) 
ga. Lateral view of specimen X 391. 9b. Lateral view of specimen X 391. 9c. Oral view of 
specimen X 391. 9d. Aboral view of specimen X 391. tIoa. Lateral view of specimen X 392. 
1ob. Lateral view of specimen X 392. toc. Oral view of specimen X 392. tod. Aboral view 
of specimen X 392. Ita. Lateral view of specimen X 393. 11b. Lateral view of specimen 
X 393. tic. Oral view of specimen X 393. 11d. Aboral view of specimen X 393. 
Fics. 14-18. Spathognathodus cristulus Youngquist & Miller 
14a. Lateral view of specimen X 466. 14b. Lateral view of specimen X 466. 15a. Lateral 
view of specimen X 467. 15b. Lateral view of specimen X 467. 15c. Oral view of specimen 
X 467. 15d. Aboral view of specimen X 467. 16a. Lateral view of specimen X 468. 16b. 
Lateral view of specimen X 468. 16c. Oral view of specimen X 468. 16d. Aboral view of 
specimen X 468. 17a. Lateral view of specimen X 464. 17b.Lateral view of specimen X 464. 
17c. Oral view of specimen X 464. 17d. Aboral view of specimen X 464. 18a. Lateral view 
of specimen X 465. 18b. Lateral view of specimen X 465. 18c. Oral view of specimen 
X 465. 18d. Aboral view of specimen X 465. 
