mably, too, a proportion of the bones was carried to the
fissures without previous burial.

The differences in wear exhibited by different bones within the same
block of matrix is attributable to differences in distance that the
bones were transported before final deposition. The final sites of
deposition, the fissures, were inundated occasionally by floods alone,
or because of changes in location of the channel of the stream at the
time of flooding. The periodicity of deposition of the sediments within
portions of the fissures is indicated by the stratification of the bone
conglomerate mentioned earlier.

In summary, it seems that there is little or no evidence beyond the
numbers of bones involved to support the hypothesis that the
concentration of bones in the fissures of Fort Sill represents the
remains of food of predators, and that the fissures were used as dens by
their predatory occupants. On the contrary, the evidence indicates that
the deposition of the bones in the fissures was secondary and that the
agency of transportation, deposition and accumulation of the bones was
an early Permian stream characterized by periodic flooding.

LITERATURE CITED

PEABODY, F. E.
1961. Annual growth zones in living and fossil
vertebrates. Jour. Morph. 108 (1): 11-62, 69 figs., January.

ROMER, A. S.
1956. Osteology of the reptiles. The University of Chicago
Press, Chicago, xxi + 772 pp., 248 figs.

ROMER, A. S., and PRICE, L. I.
1940. Review of the Pelycosauria. Geol.
Soc. America, Spec. Pap., 28: x + 538 pp., 71 figs., 46 pls.,
8 tables, December 6.

VAUGHN, P. P.
1958. On a new pelycosaur from the lower Permian of
Oklahoma, and the origin of the family Caseidae. Jour. Paleont.,
32:981-991, 1 fig., September.

_Transmitted March 15, 1962._

End of the Project Gutenberg EBook of Two New Pelycosaurs from the Lower
Permian of Oklahoma, by Richard C. Fox

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