*** Welcome to piglix ***

Hirsutospirellidae

Hirsutospirellidae
Temporal range: Late Triassic (Norian)
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.


...
Wikipedia

...