|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Radiolaria - Archaeospicularia - Echidninidae
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.
|M.-Z. Won and W. J. Iams 2002||A shell consisting of numerous point-centered spicules with four to ten curved rays and all rays directed outwardly. The shell characterized by numerous outer spines that are the distal part of rays, with the proximal parts of rays forming a shell wall with a relatively smooth, spherical to subspherical inner surface; spicules densely or loosely interlocked or fused, or modified and fused.|