Ristola Pessagno, Jr. and Whalen 1982 (radiolarian)

Radiolaria - Nassellaria - Parvicingulidae

Full reference: E. A. Pessagno, Jr. and P.A. Whalen. 1982. Lower and Middle Jurassic Radiolaria (multicyrtid Nassellariina) from California, east-central Oregon and the Queen Charlotte Islands, B.C. Micropaleontology 28(2):111-169

Parent taxon: Parvicingulidae according to W. Kiessling 1995

See also Sepkoski 2002

Sister taxa: Caneta, Darvelus, Dictyomitrella, Elodium, Excingula, Mirifusus, Nitrader, Parvicingula, Parvicingulinae, Praeparvicingula, Pseudoristola, Tethysetta, Wrangelliinae

Subtaxa: Ristola altissima Ristola cretacea Ristola firma Ristola prisca Ristola procera Ristola reliqua Ristola turpicula

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Ecology: passively mobile planktonic omnivore

Distribution:

• Cretaceous of Antarctica (1 collection), Austria (1), Italy (44), Japan (1), Malaysia (2), Oman (6), the Philippines (1), the Russian Federation (3)

• Jurassic to Cretaceous of Italy (3), Turkey (2)

• Jurassic of Albania (2), Austria (1), Germany (3), Greece (2), India (1), Italy (21), Japan (22), Malaysia (1), Mexico (2), New Zealand (1), Oman (6), Romania (1), the Russian Federation (18), Slovakia (1), Spain (3), Switzerland (1), Turkey (2), United States (31: California, Oregon)

Total: 183 collections including 219 occurrences

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Specimen images are retrieved through the ePANDDA API.


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