Operculina sp. 
 
Class: Rotaliata  Subclass: Rotaliana  Order: Nummulitida  Family: Nummulitidae
 
found at Unknown
      none
 
Geological Time: Quaternary  Holocene  recent

Thanks to Prof. Dr. Bruno Garnier the image is from the source cited below,
collection
 
 
View of a specimen of Operculina sp. 
 
The identification is based upon:
 Bellier J.-P., Mathieu R. and Granier B., 2010: Short Treatise on Foraminiferology (Essential on modern and fossil Foraminifera) [Court traitè de foraminifèrologie (L'essentiel sur les foraminifères actuels et fossiles)]. Carnets de Gèologie - Notebooks on Geology, Brest, Book 2010/02 (CG2010_B02).  104 pp. Plate 5, Fig. 000a
 
 
genus.php?no=1002183&aktion=suche
 
dataset number: FEU-1002183
 
 
Citation:
Bellier J.-P., Mathieu R. and Granier B., 2010: Short Treatise on Foraminiferology (Essential on modern and fossil Foraminifera) [Court traitè de foraminifèrologie (L'essentiel sur les foraminifères actuels et fossiles)]. Carnets de Gèologie - Notebooks on Geology, Brest, Book 2010/02 (CG2010_B02). 104 pp. Plate 5, Fig 000a