Cycads: Fossil Evidence of Late Paleozoic Origin-Reference-Cited by-同舟云学术

Cycads: Fossil Evidence of Late Paleozoic Origin

Published:1969-04-18 Issue:3877 Volume:164 Page:295-296
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Mamay Sergius H.¹

Affiliation:

1. U. S. Geological Survey, Washington, D.C. 20242

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference5 articles.

1. U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1968 600-A

2. CRIDLAND, A.A., SPERMOPTERIS, A NEW GENUS OF PTERIDOSPERMS FROM THE UPPER PENNSYLVANIAN SERIES OF KANSAS, AMERICAN JOURNAL OF BOTANY 47: 855 (1960).

3. DUNBAR, C.O., Kansas Permian insects - Part 1 - The geologic occurrence and the environment of the insects - With a description of a new paleodictyopterid, AMERICAN JOURNAL OF SCIENCE 7: 171 (1924).

4. HARRIS, T.M., PALAEONTOLOGY 4: 322 (1961).

5. The Characters of the Fossil Plant Gigantopteris Schenk and Is Occurrence in North America;PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM,1912

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