Title: The middle Triassic marine invertebrate faunas of North America,
Authors: Smith, James Perrin, 1864-1931.; Geological Survey (U.S.)
Publisher: Govt. Print. Off.,
Year: 1914
Subjects: Paleontology; Paleontology North America; Invertebrates, Fossil.; Paleontology North America
Contents: Geography of the American triassic -- Interregional correlation of the triassic -- Faunal succession of the triassic in western America -- Faunal geography of the middle triassic of America -- Systematic descriptions