Spirillina margaritifera Williamson, 1858
 
Class: Spirillinata  Subclass: Spirillinana  Order: Spirillinida  Family: Spirillinidae
 
found in the North Atlantic unknown
      none
 
Geological Time: Quaternary  Holocene  recent

the drawings are published in the book cited below, author and collection:
 
 
View of a specimen of Spirillina margaritifera Williamson, 1858
 
The identification is based upon:
 Cushman, J., A., 1931: The Foraminifera of the Atlantic Ocean. Part 8. Rotaliidae, Amphisteginidae, Calcarinidae, Cymbaloporettidae, Globorotaliidae, Anomalinidae, Planorbulinidae, Rupertiidae and Homotremidae.  Smithsonian Institution United States National Museum Bulletin 104.  Plate 1, Fig. 11
 
 
genus.php?no=1012632&aktion=suche
 
dataset number: FEU-1012632
 
 
Citation:
Cushman, J., A., 1931: The Foraminifera of the Atlantic Ocean. Part 8. Rotaliidae, Amphisteginidae, Calcarinidae, Cymbaloporettidae, Globorotaliidae, Anomalinidae, Planorbulinidae, Rupertiidae and Homotremidae. Smithsonian Institution United States National Museum Bulletin 104. Plate 1, Fig 11