152 University of Texas Bulletin 



PLATE 2. 



Scaphitei, Baculites, Ptychoceras, Metopaster, Comptonia Plate 2 



Figures 1-12. Scaphites hilli Adkins and Winton Page 79 



Occasional, basal 10 feet of the Pawpaw formation, clay facies, sparse outside of 

 Tarrant County region. Fig. 1, type individual, x 4.0, ventral view, showing 

 suture and mid-ventral groove. Locality: 714, near Fort Worth, Texas. Fig. 

 2, individual showing venter with sutures outlined in the hematite and limo- 

 nite areas, x 4.0. Locality: 714. Fig. 3, individual showing suture, dorso- 

 lateral tubercle, and aperture, x 4.0. Locality: 714. Fig. 4, same individual, 

 reverse side, x 6.0. Figs. 5, 6, individuals x 4.0. Locality: 714. Fig. 7, indi- 

 vidual showing uncoiled portion and dorso-lateral tubercle, x 2.0. Locality: 

 723, near Fort Worth, Texas. Fig. 8, individual showing uncoiled portion, 

 tubercle and juvenile suture, x 4.0. Locality: 723. Figs. 9-12, showing rib 

 variations, x 4.0. Locality: 723. 



Figures 13, 15-18. Scaphites sp. aff. hilli Adkins and Winton 



Occasional, Pawpaw clay, base. Fig. 14, x 3.0; figs. 13, 16-18, x 2.0, showing rib 



variations. Locality: 713, near Fort Worth, Texas. 







Figure 14. Metopaster hortensae Adkins and Winton Page 97 



Rare, Pawpaw formation, base, clay facies. Type individual, aboral side, x 2.0. 

 Locality: 714, near Fort Worth, Texas. 



Figure 19. Comptonia wintoni n. sp Page 97 



Rare, Pawpaw formation, base, clay facies. Type individual, aboral side, x 3.0. 

 Locality: 714, near Fort Worth, Texas. 



Figures 20-22. Baculites comanchensis n. sp Page 74 



Occasional, Pawpaw formation, base, clay facies. Type individual. Fig. 21, x 4.0. 

 Locality: 719, near Fort Worth, Texas. Fig. 20, x 2.0, same locality. Fig. 21, 

 x 2.0. Locality: 714, near Fort Worth, Texas, 



Figures 23-26. Hamulina worthensis n. sp Page 71 



Rare, basal Pawpaw clay. Type individual, Fig. 26, x 5.0, showing suture. 

 Locality: 714. Fig. 23, individual showing form of curve and short limb, 

 x 4.0. Locality: 714. Fig. 25, same individual, ventral view, x 2.0. Fig. 24, 

 individual showing form of long limb and of curve, x 4.0. Locality: 714. 

 Individuals of Figs. 23, 24 in museum of Texas Christian University, Fort Worth, 

 Texas. 



