114 
ACTIN0PTERYG1I. 
1857. Saurocephalus lanciformis, J. Leidy, Trans. Anier. 
n. s. yol.xi. p. 91, pi. vi. figs. 8-11. W’est 
1875. Saurocephalus lanciformis, E. D. Cope, Vert. Cret. Form- 
(Rep. U.S. Geol. Snrv. Terri t. vol. ».), p. 216. , x j v ;, 
1900. Saurocephalus lanciformis, F. B. Loomis, Palseontogr. v0 
p. 251, pi. xxv. figs. 2-5. 
Type. Maxilla ; Academy of Sciences, Philadelphia. 'biting 
The type species, with maxilla about 012 in length. cx , l3 
perhaps 30 dental alveoli. Crowns of maxillary teeth a xcr y 
deep as broad, smooth but slightly facetted, and with the e o° 
feebly serrated. 
Form. Sf Lor. Upper Cretaceous : Kansas. 
Not represented in the Collection. 
Saurocephalus woodwardi, Davies. ^ ^ 
1878. Saurocephalus woodwardi, W. Davies, Geol. Mag- [ J 
p. 2C1, pi. viii. figs. 1, 2. 
Type. Remains of head ; British Museum. of 
. . fu P crown 9 
A species somewhat smaller than the type, witn < p rt > a dth- 
the maxillary teeth slightly deeper in proportion to tboir^^^ ^ oU t 
Mandibular teeth not less than 50 in number, the hindet mo 
j it ter ^ 
twice as large as those of the maxilla but resembling 'J, 1 ^ e ,j but 
shape. Some of the teeth very delicately serrated, not a 
finely striated. • n lIollau d ' 
Form. S) Loc. Upper Cretaceous (Danian) : Haastric i ■, 
42979. Type specimen, described and figured by Davies, 
fan Jireu<* 
r„. jf-illCid 
The following species have also been based upon ‘ ^ ^ 0 \\ea- 
remains of jaws with teeth, but are not represented in 
tion I — ■ CnO 
phil. J 
Saurocephalus arapahovius, E. D. Cope, Proc. ^ mer '.y egt; (Rep- 
vol. xii. (1872), p. 343, and Vert. Cret. Form- , xlix . 
U.S. Geol. Surv. Territ. vol. ii. 18/5), P- “ ’ ggjok)’ 
fig. 5. — Upper Cretaceous (Niobrara ’ t ; 0 ji.] 
Hill, Kansas. [Portion of maxilla ; Cope . 0 [Aj 
Saurocephalus dentatus , A. Stewart, Kansas Un ,v - ^ rc |. oC eou s 
vol. vii. (1898), p. 25, pi. i. figs, lb 4.— I'PP®^ KaD sa8 
(Niobrara Group) ; Wallace Co., Kansas. L 
University Museum.] 
Gcnerically indeterminable teeth are named as foil 0 ^ Q r etace 
Saurocephalus albensis, F. J. Pictet, Descript. Foss. Terr. 
