Author:
Urban,J.B.
Year:
1972
Title:
A reexamination of chitinozoa from the Cedar Valley Formation of Iowa with observations on their morphology and distribution.
Reference:
Urban,J.B. (1972) A reexamination of chitinozoa from the Cedar Valley Formation of Iowa with observations on their morphology and distribution. Bulletin of American Paleontology Vol. 63 # 275 P. 5- 43
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Genus Species Country(Region) From To
Hoegisphaera Hoegisphaera glabra Iowa Middle Devonian
Margachitina Margachitina sp Iowa Middle Devonian
Sphaerochitina Sphaerochitina pilosa Iowa Middle Devonian