A StiKjji of fhe Behudcre Beds. — Criu/rn. 370 
limestone and in the Washita and Denison divisions in Texas 
and Indian Territoiy. The large and coarsely ornamented 
extreme of the species, which is the prevailing phase in the 
Champion bed, does not seem to diifer from that which, 
from some unknown liorizon of the (probably Comanche) 
Cretaceous, Dr. White lias described under the name iiku-uocJi/, 
and which is also approached by some of the largest specimens 
from the Pawpaw beds. 
3fes((!ia rciifriroJufd has been found in northern Texas, but 
only in "drift," 
Tylostoina tuiuUhi. is one of the characteristic and profusely 
abundant fossils of the C'omanche Peak limestone. 
JSfatica? cossatotensis has hitherto been reported only from 
the Bosque division. 
Schloenbachi(( pvriii-iu iki bears a somewhat closer relation 
to the Fredericksburg division than 8. lennensis does to the 
Washita. It is common in the Walnut and Comanche Peak 
terranes of the Fredericksburg and ranges up through the Kia- 
mitia into the Duck Creek. 8. leonensis. on the contrary, 
rarely if ever descends into the Kiamitia in the North Texas 
region, the common Srliloenlxichia of the Kiamitia there being 
the Fredericksburg s])ecies, -S'. pcrin-id un. 
The specimens of -S'/j/?^//of?/.v(wrs- bt'lridvrciisis from the Kiowa 
shales do not seem to differ materially in sutural pattern from 
specimens of that sj)eeies from the Conutnche Peak limestone 
of Texas. 
THE FULLIXGTON SHALES. 
The Fullin(jf<)u .shales., named after the great Fullington 
ranch at Belvidere, on which they have most extensive out- 
crops, include the lower and major part of the Kiowa shales. 
They are not sharply separated from the overlying Tucumcari 
shales either lithologieally or paleontologically. They include 
that portion of the Kiowa shales in which the Griiphd-a is 
Marcou's G. roeineri. 
At Belvidere they are separable into twit principal sulidi- 
visions, the lower of which is 
THE BLACK HILL SHALE. 
This terrane was named and briefly characterized by the 
writer in 1885, in his "Notes on the Geology of Southern Kan- 
sas." The name was derived From the Black hill adjoining 
