|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Radiolaria - Spumellaria - Haplotaeniatumidae
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|P. J. Noble and J. Maletz 2000||Large (280pm) spherical shell with multiple spiraliform or concentric layers, commonly with a pylome that penetrates the outermost three to four layers. Numerous short fine spines cover the cortical wall and extend inwards to in- ner-most cavity.|