Hirsutospirellidae Temporal range: Late Triassic (Norian) |
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Scientific classification | |
Domain: | Eukaryota |
(unranked): | SAR |
(unranked): | Rhizaria |
Phylum: | Retaria |
Subphylum: | Foraminifera |
Class: | Spirillinata |
Order: | Involutinida |
Family: |
Hirsutospirellidae Zaninetti,et al 1985 |
The Hirsutospirellidae, established for the Upper Triassic genus Hirsutospirella, are a family of Foraminifera within the Involutinida that produced calcareous tests with a proloculus followed by an undivided trochospirally enrolled tubular second chamber, in which the spiral side has prominent spinelike protrusions and umbilical side has a shallow umbilical filling.