Nannotax Enabling nannofossil research

Description: Rhabdoliths with a very narrow styliform spine that typically has a prominent basal collar. In LM the coccolith is broad and thin, and dominated by the inner cycle, with the outer cycle forming only the outermost edge. SEM images show the four buttress-like structures at the base of the spine, which appear as a "collar" in LM. It also appears that R. vitrea lacks the radial lath cycle characteristic of Blackites, hence the inclusion within the genus Rhabdosphaera.

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