. Bulletin - United States National Museum. Science. BEVISION O!^ PALEOZOIC STELLEKOIDEA. 267 Formation and locality.—OkaAV Bluffs, between Chester and Kaskaskia, Illinois, in the Chester formation of the Upper Missis- sippic. The holotype is in the Illinois State collection. No. 2480. Subclass OPHIUROIDEA. These animals are not present in tlie older Paleozoic, may have appeared in the late Devonic, and do not seem to have been abundant. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of thes
. Bulletin - United States National Museum. Science. BEVISION O!^ PALEOZOIC STELLEKOIDEA. 267 Formation and locality.—OkaAV Bluffs, between Chester and Kaskaskia, Illinois, in the Chester formation of the Upper Missis- sippic. The holotype is in the Illinois State collection. No. 2480. Subclass OPHIUROIDEA. These animals are not present in tlie older Paleozoic, may have appeared in the late Devonic, and do not seem to have been abundant. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
