120 
Pteria linguiformis E. and S.; Pecten; Protocardium. In addition the 
following were collected from fresh talus of this member: Anatina (Ana- 
timya ); B acuities cf. asper Morton; Goniomya cf. americana Meek and 
Hayden; Inoceramus erectus Meek; NucvXa; Oxytoma nebrascana (Evans 
and Shumard); Pinna dolosoniensis McLeam; Pecten silentiensis McLearn; 
Scaphites ventricosus Meek and Hayden. Other species are in a lot labelled, 
fresh talus from the Bad Heart sandstone and concretions just below it: 
Inoceramus selwyni McLearn; Germllia stantoni McLearn. The following 
is in talus from the Bad Heart sandstone or beds a little below: Scaphites 
vermiformis Meek and Hayden. 
The combined fauna of the Bad Heart sandstone and the top of the 
Kaskapau shale, containing Scaphites ventricosus and Inoceramus umbon- 
atus, is correlated with most of the upper part of the Colorado shale of 
southwestern Alberta, with the upper part of the Colorado shale of northern 
Montana, and the Niobrara of Wyoming and the United States Great 
Plains region. 1 Reeside correlates this fauna with the Lower Santonian 
and Coniacian of Europe. 2 
Above the Bad Heart sandstone is the upper shale member of the 
Smoky River formation containing, 100 to 150 feet above the base, Bacul- 
ites ovatus of post-Coloradoan age. 
SYSTEMATIC DESCRIPTIONS 
Pinna dolosoniensis n. sp. 
( Dolosonia , a latinized form of Bad Heart) 
Plate XXIII, figure 9 
Valves fairly convex, rounded, not angular along the middle. Dorsal 
margin somewhat concave; ventral margin shorter and nearly straight; 
inclined to one another at a moderately acute angle. Radial cost® (rather 
widely spaced, but becoming closer anteriorly) cover the dorsal part of the 
valve to a little ventral of the middle. Lines and wrinkles of growth well 
marked on ventral part; one specimen shows faint lines of growth in dorsal 
part of shell at about right angles to radial cost® there. 
Length of holotype, 100 mm., height 42 mm., thickness 27 mm. 
Pinna lakesi White 3 is the nearest species, but it is more tapering, 
having a more acute angle between the dorsal and ventral margins, and 
the strong wrinkles of growth do not cease at the ventral-most radial 
costa, but continue across 2 or 3 of the ventral radial cost®. 
Horizon and Locality. In fresh talus of the Bad Heart sandstone from 
east bank of Smoky river below mouth of Puskwaskau river. In fresh talus 
of Bad Heart sandstone from east bank of Smoky river, about 1$ miles 
below Puskwaskau river. In talus from north bank of Smoky river about 
14 miles below Bad Heart river; probably from the Bad Heart sandstone. 
Type . Victoria Memorial Museum; holotype, Cat. No. 6102. 
1 For distribution of the Irtoceramue umbomtus-Scapkites tentricosue fauna in the United States, See Reeside, 
J. B.,iun., U.S. Geol. Surv., Prof. Paper 132 B, pp, 2S-27- 
1 Reeside, J. B.,jnn., U.S. Geol. Surv., Prof. Paper 132 B, ». 28. 
* U. 8. G. and G. 8. Terr., 1878, pt. 1, p. 17, PI. 11, figs. la-b. 
