. Bulletins of American paleontology. MUDLUMP OSTRACODA 305. Text-figure 2. Cross section illustrating mudlump structure in South Pass area. (After Morgan, 1963, fig. 11.) 1961 report. He also supplied material from mudlump 94 -which has become an island since 1963. Dr. Andersen supplied the junior author with material from his most prolific locality, mudlump SP-5 (No. 91 on Text-fig. 1) which has become a shoal since the map was made. One of the most interesting features of this fossiliferous, very plastic clay is its extremely fine grain. All of the non-organic material passes a 200- mesh si
. Bulletins of American paleontology. MUDLUMP OSTRACODA 305. Text-figure 2. Cross section illustrating mudlump structure in South Pass area. (After Morgan, 1963, fig. 11.) 1961 report. He also supplied material from mudlump 94 -which has become an island since 1963. Dr. Andersen supplied the junior author with material from his most prolific locality, mudlump SP-5 (No. 91 on Text-fig. 1) which has become a shoal since the map was made. One of the most interesting features of this fossiliferous, very plastic clay is its extremely fine grain. All of the non-organic material passes a 200- mesh sieve. This is even true of the layer referred to as shell horizon, or "shell hash" in Morgan's report. Gagliano's (1963) report on these clays showed that they were not derived from the Mississippi River, but from the Southern Appalachians. It must be assumed that the Mississippi River, at the time these clays were deposited, was occupying the Submarine Canyon south af the city of Houma, approximately 100 miles west of its present mouth. The. 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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