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
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
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.