†Williriedellum frequens Tan Sin Hok 1927 (radiolarian)
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Protozoa - Nassellaria - Williriedellidae
Alternative combinations: Praezhamoidellum frequens, Tricolocapsa frequens
Belongs to Williriedellum according to W. Kiessling 1999
See also Yeh 2009
Sister taxa: Williriedellum carpathicum, Williriedellum crystallinum, Williriedellum ferum, Williriedellum madstonense, Williriedellum ruesti, Williriedellum sujkowski
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of Antarctica (11 collections), United States (5: California, Oregon)
Total: 16 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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