I prefer diatoms myself: https://diatoms.org/morphology

And aren't diatoms largely responsible for silica deposition in deep ocean sediments, not radiolarians? The latter are zooplankton, and being higher on the food web will not appear in as large numbers.

This is neat. I could picture the book in my mind though I haven't seen it or pictures of it in ages.

This article corrected my thinking though. I always thought those sketches were of diatoms. I had never heard of radiolarians before. Neat stuff.