Author:

Collinson,M.E.

Year:

1980

Title:

A new multiple-floated Azolla from the Eocene of Britian with a brief review of the genus.

Reference:

Collinson,M.E. (1980) A new multiple-floated Azolla from the Eocene of Britian with a brief review of the genus. Palaeontology Vol. 23 # 1 P. 213- 229

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