Author:

Bradshaw,B.P.

Year:

1981

Title:

The genera Calyptosporites, Grandispora (?), and Samarisporites from the Cedar Valley Formation, (Middle Devonian), of Iowa and Missouri, USA.

Reference:

Bradshaw,B.P. (1981) The genera Calyptosporites, Grandispora (?), and Samarisporites from the Cedar Valley Formation, (Middle Devonian), of Iowa and Missouri, USA. American Association of Stratigraphic Palynologists,14th Annual Meeting,Program and Abstracts P. 12- 13

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