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
TRACHYCERATIDAE
Genus
: Silenticeras Tozer, 1994 †
Silenticeras bamberi
Tozer, 1994 †
Silenticeras hatae
McLearn, 1930 †
Silenticeras involutum
Tozer, 1994 †
Silenticeras liardense
Tozer, 1994 †
Genus
: Sinomeginoceras Balini & Zou, 2015 †
Sinomeginoceras wangi
Balini & Zou, 2015 †
Sinomeginoceras xingyiense
Balini & Zou, 2015 †
Genus
: Sirenites (Dittmar, 1886 †)
Sirenites betulinus
(Dittmar, 1886 †)
Sirenites hayesi
(Smith, 1927 †)
Sirenites homfrayi
(W.M. Gabb, 1864 †)
Sirenites inaequiornatus
McLearn, 1947 †
Sirenites lawsoni
(A. Hyatt & Smith, 1905 †)
Sirenites malayicus
(Welter, 1914 †)
Sirenites nanseni
Tozer, 1961 †
Sirenites ovinus
Tozer, 1994 †
Sirenites senticosus
(Dittmar, 1866 †)
Sirenites serotinus
Tozer, 1994 †
Sirenites yakutensis
(Kiparisova, 1937 †)
Genus
: Sirenotrachyceras (Mojsisovics, 1893 †)
Sirenotrachyceras thusneldae
(Mojsisovics, 1893 †)
Genus
: Spirogmoceras (Smith, 1904 †)
Spirogmoceras shastense
(Smith, 1904 †)