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Hughesius

Tue, 01/01/2008 - 22:40 — Jeremy Young
Citation: 
Genus Hughesius Varol, 1989

Description: Placolith coccoliths showing low birefringence with central area filled by 2 to 4 plates, without obvious perforations.

Remarks:  There appears to be a lineage extending from Clausicoccus fenestratus via H. tasmaniae to H. gizoensis, involving size decrease and reduction of the R-units. H. tasmaniae is very similar to Clausicoccus and essentially is Clausicoccus without prominent perforations, H. gizoensis seems to have a simpler shield structure, possibly as a result of the smaller size.

Type species: H. gizoensis Varol 1989 

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