. Bulletins of American paleontology. 204 Bulletin 241. W Locality 3 The uppermost loess stratigraphically is a light yellow brown calcareous, fossiliferous silt. Slump prevented accurate measure- ment of its thickness, but it was estimated to be about 14 feet. This silt is shown in Text-figure 6 as the light material above the verti- cal part of the section, the darker portion of the picture. The line of demarcation is clearly visible. Many specimens of Anguispira alternata were recovered from the base of this silt. Other species, found in abundance in the silt, were Punctum minutissimum, Ver
. Bulletins of American paleontology. 204 Bulletin 241. W Locality 3 The uppermost loess stratigraphically is a light yellow brown calcareous, fossiliferous silt. Slump prevented accurate measure- ment of its thickness, but it was estimated to be about 14 feet. This silt is shown in Text-figure 6 as the light material above the verti- cal part of the section, the darker portion of the picture. The line of demarcation is clearly visible. Many specimens of Anguispira alternata were recovered from the base of this silt. Other species, found in abundance in the silt, were Punctum minutissimum, Ver- tigo modesta, Vertigo hubrichii, Discus cronkhitei, and Succinea gelida. The ecological requirements of these species implies forest bordered woodlands. The presence of the larger snails {Anguispira, Mesodon, and Haplotrema) at the base of this unit is indicative of true woodlands. The climate was cool; (Vertigo modesta and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
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Keywords: ., bookauthorpaleonto, bookcentury1800, bookdecade1890, bookyear1895
