Polycystinea - Spumellaria - Hagiastridae
Parent taxon: Hagiastridae according to D. M. Hull 1997
See also Sepkoski 2002
Sister taxa: Archaeohagiastrum, Crucella, Hagiastrum, Higumastra, Monotrabs, Pobum, Pseudocrucella, Pseudohagiastrum, Pseudohigumastra, Pterotrabs, Savaryella, Sophia, Tetraditryma, Tetraporobrachia, Udalia
Subtaxa: Tetratrabs acutusspina Tetratrabs bulbosa Tetratrabs izeensis Tetratrabs noricus Tetratrabs radix Tetratrabs robustusspina Tetratrabs zealis
Distribution:
• Cretaceous of Austria (3 collections), Italy (22), Oman (2)
• Jurassic to Cretaceous of Austria (2), Germany (1), Italy (3)
• Jurassic of Austria (4), Germany (2), Greece (1), Indonesia (1), Italy (27), Japan (8), Mexico (7), Oman (3), Romania (6), the Russian Federation (3), Slovakia (6), Spain (1), United States (12: Oregon)
• Triassic of Canada (10: British Columbia), United States (2: Oregon)
Total: 126 collections including 145 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.