Paleogeographic impact of a newly described 'cruciform' sub-group of Tetracyclus (Bacillariophyta, Diatomaceae)

Micropaleontology ◽

10.2113/gsmicropal.53.5.421 ◽

2007 ◽

Vol 53 (5) ◽

pp. 421-429 ◽

Author(s):

D. M. Williams

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