Triactoma Rüst 1885 (radiolarian)

Protozoa - Actinommacea - Xiphostylidae

Invalid subtaxa: Triactis Haeckel 1881 [replaced name], Triactiscus Haeckel 1887

Parent taxon: Xiphostylidae according to P. De Wever et al. 2001

See also Haeckel 1887, Hull 1997, Loeblich and Tappan 1961, Popova-Goll et al. 2005, Sepkoski 2002 and Zügel 1997

Sister taxa: Amuria, Archaeocenosphaera, Suna, Trigonosphaera, Tripocyclia, Xiphostylus, Zanola

Subtaxa: Triactiscus lanceola Triactiscus triacuminatus Triactiscus tricuspis Triactiscus tripodiscus Triactiscus tripyramis Triactoma amajacensis Triactoma blakei Triactoma cellulosa Triactoma foremanae Triactoma frequens Triactoma hexeris Triactoma hidalgoensis Triactoma ilsedense Triactoma jonesi Triactoma kellumi Triactoma mexicana Triactoma pachyacantha Triactoma parablakei Triactoma paramexicana Triactoma prolongata Triactoma rosespitensis Triactoma spinosa Triactoma tenuspinea Triactoma tithonianum

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Ecology: passively mobile planktonic omnivore

Distribution:

• Cretaceous of Albania (1 collection), Austria (10), Germany (1), Greece (4), Italy (80), Oman (10), the Philippines (1), Poland (2), the Russian Federation (4), Türkiye (1)

• Jurassic to Cretaceous of Austria (3), Germany (1), Italy (3), Oman (2)

• Jurassic of Albania (3), Antarctica (14), Austria (19), Canada (8: British Columbia), Germany (9), Greece (9), India (1), Italy (38), Japan (15), Mexico (18), Nicaragua (1), Oman (11), the Philippines (2), Romania (8), the Russian Federation (14), Slovakia (18), Spain (4), Switzerland (2), Türkiye (1), United States (32: California, Oregon)

Total: 350 collections including 589 occurrences

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Specimen images are retrieved through the ePANDDA API.


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