paleonet Synonymy list -non notation in Berggren 1997

["Robert Huber" <robert.huber@xxxxxxxxxxxxxxxx>]

Dear all,

While reading the extensive synonymy lists in Berggrens
'micropaleontology' publication (1), I noticed several 
times a notation I don't understand. 
It is the use of a "non" followed by a Author name, 
often in Brackets after the synonym list entry e.g.:

Globigerina cf.fringa Subbotina- LUTERBACHER and PREMOLI 
SILVA 1964 p. pl 2 figs 4a-c Zone, Gubbio section, 
Appenines,NW Italy) (non SUBBOTINA)

In particular I would like to understand what the non
Subbotina means here?

Thank you very much in advance,

Robert Huber

(1)Bergren & Norris 1997,Biostratigraphy, phylogeny and 
systematics of Paleocene trochospiral planktic formainifera,
 micropaleontology 43 sup 1

Dr. Robert Huber
WDC-MARE / PANGAEA - www.pangaea.de, www.wdc-mare.org
Stratigraphy.net - www.stratigraphy.net
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