400 University Geological Survey of Kansas. 
ton, and from the Wellington shales (Permian) at Banner 
City. 
Pecopteris cf. miltoni Lx. Pl. XLV, fig. 15. 
Specimens referred doubtfully to this species occur in the 
Lawrence shales at Twinmound. 
Pecopteris unita Brongn. Pl. XLV, figs. 1, 2. 
Prodome, p. 58, 1828. 
This common and widely distributed species is found in 
both the Cherokee and the Le Roy shales. Those of the Le Roy 
shales appear, so far as yet observed, to belong to the form or 
variety emarginata. 'The species is apparently rare at the 
Lansing locality. 
Oligocarpia GOEPPERT. . 
Oligocarpia kansasensis sp. nov. Pl. XLV, figs. 16-19; pl. LIII, fig. 3. 
Fronds large, quadripinnatifid, or more. Rachis of the 
frond, or its large division, thick, strong, 214 cm. wide, surface 
irregularly set with rough, strong, thorn-like projections, or 
bases of small thorns; the intervening surface roughened with 
undulating wrinkles of the epidermis. Secondary and tertiary 
rachises similarly marked, but with smaller, more closely placed 
puncte. Divisions of the frond alternate or subopposite, ob- 
lique or open. Primary pinne long, rachis 7 or 8 mm. wide. 
Secondary pinne oblique, distant, rachis strong at the base. 
Tertiary pinne alternate, close, sessile, touching or nearly so, 
sometimes overlapping, 6 mm. to 2 cm. apart, narrowly lanceo- 
late, sloping to a long, lanceolate, acute, or sometimes some- 
what obtuse apex, giving place above on the secondary pinneze 
to ultimate pinnee, which in turn pass into pinnules at the top of 
the secondary pinna. Rachis slender, round, more or less flex- 
uous, especially at the top, finely lineate, sometimes showing 
the punctee. Ultimate pinne small, pinnatifid, 1 to 2 cm. or 
more long, 1 to 1144 cm. distant, constricted at the base, nar- 
rowly oblong obtuse, passing into pinnules towards the apex of 
the tertiary pinnee. Rachis slender, slightly decurrent at the 
base, flexuous in its upper part. Pinnules varying with posi- 
tion on the frond, large ones distinct, but close, oblong, nar- 
rowing gradually and regularly from the base to the obtuse 
apex, 6 to 10 mm. long, borders entire, or becoming lobate as 
the pinnules pass into small pinnatifid pinnz; smaller ones 
connate, ovate or ovate-oblong, with a slight forward inclina- 
tion, passing into lobes of a small terminal pinnule. Lamina 
