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
TRIGONOCERATIDAE
Genus
: Aphelaeceras W.J. Gordon, 1964 †
Aphelaeceras arkansanum
W.J. Gordon, 1964 †
Aphelaeceras falciferum
Yin, 1933 †
Aphelaeceras mutabile
(McCoy, 1844 †)
Aphelaeceras nayongense
Zheng, 1984 †
Genus
: Apogonoceras Ruzhentsev & Shimanskiy, 1954 †
Apogonoceras remotum
Ruzhentsev & Shimanskiy, 1954 †
Genus
: Aulagonoceras Zheng, 1984 †
Aulagonoceras bispirale
Zheng, 1984 †
Aulagonoceras plicatum
Zheng, 1984 †
Aulagonoceras spirale
Zheng, 1984 †
Genus
: Chouteauoceras Miller & Furnish †
Chouteauoceras americanum
Miller & Furnish †
Genus
: Diodoceras (Dawson, 1868 †)
Diodoceras avonensis
(Dawson, 1868 †)