What is the star system?
The star system calculates the number of pieces that were handled by Conchology, Inc. in the last 21 years:
| 0 – 5 pieces | 6 stars |
|
| 6 – 10 pieces | 5 stars |
|
| 11 - 25 pieces | 4 stars | |
| 26 - 75 pieces | 3 stars | |
| 76 - 150 pieces | 2 stars | |
| > 150 pieces | 1 star | |
We want to point out that the star system is only very reliable for PHILIPPINE shells only, as we handle very few foreign shells in general. As time goes, the system will become more and more performant.
WMSDB - Worldwide Mollusc Species DataBase
GIRTYOCERATIDAE
Genus
: Hudsonoceras (J. Brown, 1841 â )
Hudsonoceras aristos
Flower, 1955 †
Hudsonoceras proteum
(J. Brown, 1841 †)
Genus
: Sulcogirtyoceras Ruzhentsev & Bogoslovskaya, 1971 â
Sulcogirtyoceras artumbilicatum
Ruzhentsev & Bogoslovskaya, 1971 †
Sulcogirtyoceras burhennei
(Bruning, 1923 †)
Sulcogirtyoceras coronula
(F.A. Roemer, 1855 †)
Sulcogirtyoceras jasperense
W.J. Gordon, 1964 †
Sulcogirtyoceras limatum
(Miller & M.J. Faber, 1892 †)
Sulcogirtyoceras mediolobum
Kullmann, 1962 †
Sulcogirtyoceras sagittarium
Ruzhentsev & Bogoslovskaya, 1971 †
Sulcogirtyoceras weetsense
(E.W.J. Moore, 1946 †)
Genus
: Tumulites Ruzhentsev & Bogoslovskaya, 1971 â
Tumulites eurinus
Ruzhentsev & Bogoslovskaya, 1971 †
Tumulites varians
J.E. McCaleb & al., 1964 †
Genus
: Winchelloceras (Winchell, 1862 â )
Winchelloceras allei
(Winchell, 1862 †)
Winchelloceras antiatlanteum
W. Korn & al., 2003 †
Winchelloceras knappi
Work & Mason, 2004 †