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
: Paratrachyceras McLearn, 1947 â
Genus species
:
Paratrachyceras sutherlandi
Author
:
McLearn, 1947 †
Locality
:
Italy, Trentino-Alto Adige
Size
:
no data
ID
:
6598000017
Genus species
:
Paratrachyceras ulynense
Author
:
Bychkov, 1973 †
Locality
:
Russia, Yana-Okhotsk basin
Size
:
no data
ID
:
6598000017
Genus
: Protrachyceras Mansuy, 1912 â
Genus species
:
Protrachyceras archelaus
Author
:
(Laube †)
Locality
:
Italy, Bolzano
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras beckeri
Author
:
Smith, 1927 †
Locality
:
USA, California, Shasta
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras californicum
Author
:
Smith, 1927 †
Locality
:
USA, California, Shasta
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras costulatum
Author
:
Mansuy, 1912 †
Locality
:
China, Guizhou, Anshun
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras deprati
Author
:
Mansuy, 1912 †
Locality
:
China, Guizhou, Anshun
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras lecontei
Author
:
A. Hyatt & Smith, 1905 †
Locality
:
USA, California, Shasta
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras lindgreni
Author
:
Smith, 1927 †
Locality
:
USA, California, Shasta
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras madisonense
Author
:
Smith, 1927 †
Locality
:
USA, California, Shasta
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras reitzi
Author
:
(Boeckh, 1875 †)
Locality
:
Japan, Miyagi
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras seimkanensis
Author
:
Mojsisovics 1893 †
Locality
:
Size
:
no data
ID
:
6598000066
No geographical data
No Geographical Data
Genus species
:
Protrachyceras sikanianum
Author
:
McLearn, 1930 †
Locality
:
Canada, Quebec, Anticosti Island
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras springeri
Author
:
Smith, 1914 †
Locality
:
USA, Nevada, Pershing
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras storrsi
Author
:
Smith, 1927 †
Locality
:
USA, California, Shasta
Size
:
no data
ID
:
6598000066
Genus species
:
Protrachyceras zauwae
Author
:
McLearn, 1930 †
Locality
:
Canada, Quebec, Anticosti Island
Size
:
no data
ID
:
6598000066