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1 May 2007THE UPPER PENNSYLVANIAN (MISSOURIAN) AMMONOID PENNOCERAS FROM THE NORTH AMERICAN MIDCONTINENT
DAVID M. WORK,1 DARWIN R. BOARDMAN,2 Royal H. Mapes3
1Maine State Museum, 83 State House Station, Augusta 04333-0083, < >, david.work@maine.gov 2School of Geology, 105 Noble Research Center, Oklahoma State University, Stillwater 74078, < >, amm0001@okstate.edu 3Department of Geological Sciences, 316 Clippinger Laboratories, Ohio University, Athens 45701, < > mapes@ohio.edu
DAVID M. WORK,DARWIN R. BOARDMAN, andRoyal H. Mapes "THE UPPER PENNSYLVANIAN (MISSOURIAN) AMMONOID PENNOCERAS FROM THE NORTH AMERICAN MIDCONTINENT," Journal of Paleontology 81(3), 591-596, (1 May 2007). https://doi.org/10.1666/05094.1
DAVID M. WORK, DARWIN R. BOARDMAN, Royal H. Mapes "THE UPPER PENNSYLVANIAN (MISSOURIAN) AMMONOID PENNOCERAS FROM THE NORTH AMERICAN MIDCONTINENT," Journal of Paleontology, 81(3), 591-596, (1 May 2007)
