†Stephanastrum Ehrenberg 1847 (radiolarian)
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Protozoa - Spumellaria - Larnacillidae
Parent taxon: Histriastrinae according to P. De Wever et al. 2001
See also Sepkoski 2002
Sister taxa: Amphymenium, Histiastrum, Stauralastrum
Subtaxa: Stephanastrum orbiculare Stephanastrum rhombus
Type: Stephanastrum rhombus
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of Canada (1: British Columbia collection), Switzerland (1)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.