|
|
Original published in D.F. Merriam, ed., 1964, Symposium on cyclic sedimentation: Kansas Geological Survey, Bulletin 169, pp. 171-181 |
|
||
Figure 3--Photomicrographs of thin sections of oncolites from Sappington Formation algae-sponge biostrome subunit E. A, Nodule showing concentric pattern and pillar-like development from Nixon Gulch Locality no. 8. B, Nodule showing concentric pattern with encrusting and enveloped productid brachiopods, fenestellid bryozoans, and other tubular forms from Antelope Valley Locality no. 7.
