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
42
TRACHYCERATIDAE
Taxon Tree:
CEPHALOPODA [Class]
AMMONOIDEA [Subclass]
CERATITIDA [Order]
TRACHYCERATOIDEA [SuperFamily]
TRACHYCERATIDAE [Family]
[Genus]
[Species]
Genus
: Yakutosirenites (Vozin, 1964 â )
Genus species
:
Yakutosirenites pentastichus
Author
:
(Vozin, 1964 †)
Locality
:
Canada, Axel Heiberg Island
Size
:
no data
ID
:
6598000046
Genus
: Zestoceras (Johnson, 1941 â )
Genus species
:
Zestoceras barwicki
Author
:
(Johnson, 1941 †)
Locality
:
Italy, Veneto, Belluno
Size
:
no data
ID
:
6598000025
Genus species
:
Zestoceras cerastes
Author
:
Tozer, 1994 †
Locality
:
Italy, Veneto, Belluno
Size
:
no data
ID
:
6598000025
Genus species
:
Zestoceras enode
Author
:
(Tozer, 1972 †)
Locality
:
Canada, British Columbia, Northern Rockies
Size
:
no data
ID
:
6598000025
Genus species
:
Zestoceras lorigae
Author
:
P. Mietto & Manfrin, 2008 †
Locality
:
Canada, British Columbia, Northern Rockies
Size
:
no data
ID
:
6598000025
Genus species
:
Zestoceras nitidum
Author
:
Tozer, 1994 †
Locality
:
Canada, British Columbia, Northern Rockies
Size
:
no data
ID
:
6598000025