The Hirsutospirellidae, established for the Late 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.[1]

Hirsutospirellidae
Temporal range: Late Triassic (Norian)
Hirsutospirella pilosa
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Hirsutospirellidae

Zaninetti,et al 1985

References edit

  1. ^ Hirsutospirellidae Loeblich & Tappan, 1988 in GSI e-book