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Volume 65 - January 1991

Contents

Page 6 of 8

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Front Matter

Society Records and Activities

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Back Matter

Paleontological Notes

  • Fossil invertebrate collections moved from National Museum

  • J. Thomas Dutro, Jr., Thomas W. Henry
  • Published online by Cambridge University Press:
    14 July 2015, p. 171

  • Paleontological investigations have played a critical role in the research of the U.S. Geological Survey (USGS) since its founding in 1879. From about 1950 until recently, the bulk of these fossil materials collected by USGS field geologists was housed in the U.S. National Museum of Natural History (Smithsonian Institution) in Washington, D.C, under the control of the Branch of Paleontology and Stratigraphy of the USGS. Large biostratigraphic sets of USGS collections also resided in Denver, Colorado, and Menlo Park, California, at the USGS regional centers.

Research Article

  • A new Jurassic Phlebopteris (Plantae, Filicales) from the Wallowa Terrane in the Snake River Canyon, Oregon and Idaho

  • Sidney Ash
  • Published online by Cambridge University Press:
    20 May 2016, pp. 322-329

  • A new species of the fern Phlebopteris, P. tracyi n. sp., is described from the Jurassic Coon Hollow Formation in the Wallowa terrane in the Snake River Canyon, Oregon and Idaho. The leaf is as large or larger than all specimens of previously described species of Phlebopteris. The pinnae of the new species are divided into many widely spaced, narrow, elongate pinnules that have obtusely pointed apices. Each pinnule contains a strong midrib from which lateral veins arise at a high angle and give off anastomosing branch veins. The fertile pinnae bear circular superficial sori arranged in a single row on each side of midrib. The new Phlebopteris occurs beneath a horizon containing marine fossils of Middle Jurassic age. The presence of P. tracyi in the Coon Hollow Formation indicates that it was deposited under a humid, warm to hot climate.

Paleontological Notes

Society Records and Activities

Taxonomic Note

Paleontological Notes

  • Correspondence and papers of U.S. Geological Survey paleontologists placed in Smithsonian Archives

  • J. Thomas Dutro, Jr.
  • Published online by Cambridge University Press:
    14 July 2015, p. 172

  • Correspondence and working papers of a number of U.S. Geological Survey paleontologists who were once quartered in the U.S. National Museum of Natural History have been transferred to the Smithsonian Archives during the past few years. Major space reallocations in the Museum resulted in consolidation of USGS Paleontology and Stratigraphy Branch research activities into about one-quarter the space occupied before 1988. Consequently, most of the records and many of the fossil collections were moved out of the Museum.

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Society Records and Activities

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Society Records And Activities

Paleontological Society

Society Records And Activities

Society Records and Activities

Page 6 of 8