Smithsonian miscellaneous collections . CAMASIA SPONGIOSA Walcott 136 SMITHSONIAX MISCELLANEOUS COLLECTIONS VOL. 64 DESCRIPTION OF PLATE 13 PAGE Collenia undosa Walcott. (See pi. 14) 113 Fig. I. (Natural size.) Vertical polished section through a layer inwhich numerous specimens are embedded. U. S. NationalMuseum, Catalogue No. 2. (Natural size.) Photograph of thin section of a subsphericalspecimen, showing the original growth as a dome and thena second growth that apparently occurred after the specimenhad been rolled over. U. S. National Museum, CatalogueNo. specimens rep
Smithsonian miscellaneous collections . CAMASIA SPONGIOSA Walcott 136 SMITHSONIAX MISCELLANEOUS COLLECTIONS VOL. 64 DESCRIPTION OF PLATE 13 PAGE Collenia undosa Walcott. (See pi. 14) 113 Fig. I. (Natural size.) Vertical polished section through a layer inwhich numerous specimens are embedded. U. S. NationalMuseum, Catalogue No. 2. (Natural size.) Photograph of thin section of a subsphericalspecimen, showing the original growth as a dome and thena second growth that apparently occurred after the specimenhad been rolled over. U. S. National Museum, CatalogueNo. specimens represented by figs, i and 2 are from locality400b: Algonkian: Spokane shales; 8 miles ( km.) west ofWhite Sulphur Springs at forks of Birch Creek, Meagher County,Montana. EOUS COLLECTIONS VOL. 64, NO. 2, COLLENIA UNDOSA Walcott 138 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64 DESCRIPTION OF PLATE 14 PAGE Collenia undosa Walcott. (See pi. 13) 113 Figs, i and 2. ( natural size.) Side and top view of a group ofspecimens that have apparently grown together, forming asolid mass. They are embedded in the red Spokane S. National Museum. Catalogue No. 60709. Locality 400b: Algonkian : Spokane shales; 8 miles ( km.)west of White Sulphur Springs, Meagher County, Montana. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 64, NO. 2, PL.
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