†Hilarisirex Takemura and Nakaseko 1982 (radiolarian)
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Protozoa - Nassellaria - Hilarisiregidae
Parent taxon: Hilarisiregidae according to D. M. Hull 1997
Sister taxon: Diceratigalea
Subtaxa: Hilarisirex oregonensis Hilarisirex quadrangularis
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of Italy (2 collections), Japan (5), United States (3: California, Oregon)
Total: 10 collections including 12 occurrences
Specimen images are retrieved through the ePANDDA API.
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