Upper Triassic marine invertebrate faunas of North America Smith, James Perrin 1864-1931 creator author. Geological Survey (U.S.) issuing body. text bibliography dcu 1927 monographic eng remote 1 online resource (iv, 262 pages) : illustrations, maps. by James Perrin Smith. Report number from USGS web site. Includes bibliographical references and index. n------ Marine invertebrates, Fossil North America Paleontology Triassic Animals, Fossil North America Animals, Fossil Invertebrates, Fossil Paleontology Triassic Geologic Period North America From 190 to 230 million years ago fast I 19.16:141 I 19.16:141 Upper Triassic marine invertebrate faunas of North America Smith, James Perrin, 1864-1931. (DLC)gs 27000350 (OCoLC)4681072 Professional paper (Geological Survey (U.S.)) ; no. 141 https://purl.fdlp.gov/GPO/gpo79753 OCLCE 100401 20211120182133.0 in00003835129 eng