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
5
PTYCHOCAULIDAE
Taxon Tree:
GASTROPODA [Class]
ORTHOGASTROPODA [Subclass]
MURCHISONIINA [Order]
MURCHISONIOIDEA [SuperFamily]
PTYCHOCAULIDAE [Family]
[Genus]
[Species]
Genus
: Medfracaulus (Barrande in J. Perner, 1907 â )
Genus species
:
Medfracaulus contracta
Author
:
(J. Perner, 1907 †)
Locality
:
Czech Republic, Prague
Size
:
no data
ID
:
5853000071
Genus species
:
Medfracaulus cooki
Author
:
Rohr & al., 2003 †
Locality
:
Alaska, Limestone Mountain
Size
:
no data
ID
:
5853000071
Genus species
:
Medfracaulus sana
Author
:
(Barrande in J. Perner, 1907 †)
Locality
:
Czech Republic, Prague
Size
:
no data
ID
:
5853000071
Genus species
:
Medfracaulus sinelnikovae
Author
:
Mazaev, 2016 †
Locality
:
Russia, Moscow
Size
:
no data
ID
:
5853000071
Genus species
:
Medfracaulus turriformis
Author
:
(A. Chernyshev, 1893 †)
Locality
:
USA, Prince of Wales island
Size
:
no data
ID
:
5853000071
Genus
: Ptychocaulus (J.W. Hall, 1852 â )
Genus species
:
Ptychocaulus approximans
Author
:
J. Perner, 1907 †
Locality
:
United States, Nevada, Eureka
Size
:
no data
ID
:
5853000161
Genus species
:
Ptychocaulus bivittata
Author
:
(J.W. Hall, 1852 †)
Locality
:
Canada, Ontario, Wellington
Size
:
no data
ID
:
5853000161
Genus species
:
Ptychocaulus brevicona
Author
:
J. Perner, 1907 †
Locality
:
United States, Nevada, Eureka
Size
:
no data
ID
:
5853000161
Genus species
:
Ptychocaulus crumena
Author
:
J. Perner, 1907 †
Locality
:
Size
:
no data
ID
:
5853000161
No geographical data
No Geographical Data
Genus species
:
Ptychocaulus magna
Author
:
Karczewski, 1980 †
Locality
:
Size
:
no data
ID
:
5853000161
No geographical data
No Geographical Data
Genus species
:
Ptychocaulus rodneyi
Author
:
Rohr, 1980 †
Locality
:
USA, California, Siskiyou
Size
:
no data
ID
:
5853000161
Genus species
:
Ptychocaulus verneuili
Author
:
(E.F.R.K. Koken, 1889 †)
Locality
:
United States, Nevada, Eureka
Size
:
no data
ID
:
5853000161