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
21
TRIGONOCERATIDAE
Genus
: Aphelaeceras
- Aphelaeceras
Genus
: Apogonoceras
- Apogonoceras
Genus
: Aulagonoceras
- Aulagonoceras
Genus
: Chouteauoceras
- Chouteauoceras
Genus
: Diodoceras
- Diodoceras
Genus
: Discitoceras
- Discitoceras
Genus
: Epistroboceras
- Epistroboceras
Genus
: Imonautilus
- Imonautilus
Genus
: Lispoceras
- Lispoceras
Genus
: Maccoyoceras
- Maccoyoceras
Genus
: Mesochasmoceras
- Mesochasmoceras
Genus
: Rineceras
- Rineceras
Genus
: Stroboceras
- Stroboceras
Genus
: Subclymenia
- Subclymenia
Genus
: Thrincoceras
- Thrincoceras
Genus
: Triboloceras
- Triboloceras
Genus
: Valhallites
- Valhallites
Genus
: Vestinautilus
- Vestinautilus
Genus
: Yakutionautilus
- Yakutionautilus
