By Michael J. Everhart

ISBN-10: 0253345472

ISBN-13: 9780253345479

Revised, up to date, and improved with the most recent interpretations and fossil discoveries, the second one variation of Oceans of Kansas provides new twists to the attention-grabbing tale of the huge inland sea that engulfed crucial North the United States throughout the Age of Dinosaurs. sizeable sharks, marine reptiles referred to as mosasaurs, pteranodons, and birds with enamel all flourished in and round those shallow waters. Their ample and well-preserved is still have been resources of serious pleasure within the clinical neighborhood whilst first found within the 1860s and proceed to yield interesting discoveries a hundred and fifty years later. Michael J. Everhart vividly captures the background of those startling reveals over the many years and re-creates in unforgettable aspect those animals from our far-off earlier and the realm during which they lived―above, inside, and at the shorelines of America’s historic inland sea.

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It was only after Hattin ( 1 9 8 2 ) published his composite measured section of the Smoky Hill C h a l k that significant progress could be made in understanding the vertebrate biostratigraphy of this formation. Hattin used bentonites and other geological features to delineate his twenty-three lithologic marker units, and he divided the chalk into five biostratigraphic zones based on the o c currence of invertebrate species. In doing so, he provided field workers with the first dependable method of determining their stratigraphic location in the section.

1 9 9 2 ) that indicates the presence of another species of a m m o n i t e . 4. The paired aptychi (FHSM IP-528; Spinaptychus n. ) of an as yet unidentified ammonite found in the Smoky Hill Chalk. The delicate aptychi are composed of calcite and are preserved even though the much larger and thicker shell of the ammonite (aragonite) was dissolved. Stewart's (1990) zone of Clioscaphites vermiformis and C. choteauensis is early S a n t o n i a n and occurs below the middle of the c h a l k . In this case, the scaphites shells (another kind of ammonite) are represented only by the molds left in the chalk after the shells were dissolved.

1940. O. C. Marsh—Pioneer in Paleontology. : Yale University Press. 541 pp. Benjamin F. Mudge ( 1 8 1 7 - 1 8 7 9 ) Peterson, J. M. 1987. "Science in Kansas: The Early Years, 1 8 0 4 - 1 8 7 5 . " Kansas History Magazine 10(3): 2 0 1 - 2 4 0 . Charles H. Sternberg ( 1 8 5 0 - 1 9 4 3 ) and George F. Sternberg (1883-1969) Liggett, G. A. 2 0 0 1 . Dinosaurs to Dung Beetles: Expeditions Through Time. Guide to the Sternberg Museum of Natural History. Sternberg Museum of Natural History, Hays, Kansas, 127 pp.

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Oceans of Kansas : a natural history of the western interior sea by Michael J. Everhart

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