. Devonian fishes of Iowa. Fishes, Fossil; Paleontology; Paleontology. 60 IOWA GEOLOGICAL SURVEY along the entire length of the abdomen. Therefore, if the sep- arate median fins were produced by the subdivision of a primi- tively continuous median membrane along the back and the lower side of the tail, the paired fins arose similarly by the sub- division of continuous membranes which extended as a sym- metrical pair along the outside walls of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration
. Devonian fishes of Iowa. Fishes, Fossil; Paleontology; Paleontology. 60 IOWA GEOLOGICAL SURVEY along the entire length of the abdomen. Therefore, if the sep- arate median fins were produced by the subdivision of a primi- tively continuous median membrane along the back and the lower side of the tail, the paired fins arose similarly by the sub- division of continuous membranes which extended as a sym- metrical pair along the outside walls of 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 Eastman, Charles Rochester, 1868-1918; Iowa Geological Survey. Des Moines : Iowa Geological Survey
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Keywords: ., bookcentury1900, bookdecade1900, booksub, booksubjectpaleontology
