Concepedia

A. O. Thomas

AO

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Publications

2

Citations

51

H-Index

2

Active since

1921

A. O. Thomas is an author specializing in engineering, geology, and biology.

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Publications per year

1921–1989

2

Publications

2

Echinoderms of the Iowa Devonian

A. O. Thomas · Iowa Geological Survey Annual Report · 1921 · 30 citations · Full text

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OCCURRENCE OF EARLIEST CYCADS IN THE PERMIAN OF CHINA AND ITS BEARING ON THEIR EVOLUTION

高志峰, Barry, A. O. Thomas · 中国科学通报：英文版 · 1989 · 21 citations

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