11-039Actions

11-039
Title
<em>Delnortea abbottiae</em> - Permineralized leaf fragment
Author
John Miller Oregon State University Botany and Plant Pathology Corvallis Oregon 97331 USA claytonia@sbcglobal.net http://www.giga
Keywords
Delnortea abbottiae, Gigantopteridaceae
Description
Delnortea abbottiae, Gigantopteridaceae
This is a kodachrome of a permineralized leaf fragment of Delnortea. The woody midrib, clearly visible on the slide, was used by William E. Stein, Jr., Ph.D. to create the polished thin-sections yielding the first images of a bifacial cambium and conducting xylem and phloem tissue of any Permian gigantopterid; shown as Figs. 23-36 (USNM 372427). Taken by John M. Miller, Ph.D. using a Nikkormat camera and ASA 25 film in sunlight, shortly after collection of the rock sample from the Lower Permian (Leonardian) Road Canyon Formation, Permian Type Section. Later photographs were taken by Sergius H. Mamay, Ph.D., USNM and William E. Stein, Jr., Ph.D. and published in AJB 75(9): 1418, 1420.
Additional data
copyright: John Miller
license:
Collection
Paleobotany
Botanical Name
Delnortea abbottiae
Location Area
Del Norte Mountains
Location State
Texas
Location Country
USA
Categories
  • Image
  • Not a cover image

Creation and update