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
14
PROTEOCERATIDAE
Taxon Tree:
CEPHALOPODA [Class]
ORTHOCERATOIDEA [Subclass]
DISSIDOCERIDA [Order]
PROTEOCERATIDAE [Family]
[Genus]
[Species]
Genus
: Isorthoceras (Miller & M.J. Faber, 1894 â )
Genus species
:
Isorthoceras albersi
Author
:
(Miller & M.J. Faber, 1894 †)
Locality
:
USA, Ohio, Hamilton
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras angelini
Author
:
Kröger, 2013 †
Locality
:
Sweden, Dalarna
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras curvilineatum
Author
:
Kröger, 2013 †
Locality
:
Sweden, Dalarne
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras dalecarlense
Author
:
Kröger & al., 2011 †
Locality
:
Sweden, Dalarna, Rättvik
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras elongatocinctum
Author
:
(Portlock, 1843 †)
Locality
:
UK, Northern Ireland
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras heroyense
Author
:
(E. Strand, 1934 †)
Locality
:
Norway, Telemark, Porsgrunn
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras junceum
Author
:
(I. Balashov, 1956 †)
Locality
:
Sweden, Dalarna, Rättvik
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras rogersensis
Author
:
(Foerste, 1914 †)
Locality
:
Size
:
no data
ID
:
6875000018
No geographical data
No Geographical Data
Genus species
:
Isorthoceras sociale
Author
:
(J.W. Hall, 1877 †)
Locality
:
USA, Wisconsin, Grant
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras suave
Author
:
(Angelin & Lindström, 1880 †)
Locality
:
Sweden, Dalarna, Rättvik
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras subcostatum
Author
:
(Portlock, 1843 †)
Locality
:
UK, Northern Ireland
Size
:
no data
ID
:
6875000018
Genus species
:
Isorthoceras wahlenbergi
Author
:
Niko, 2007 †
Locality
:
Sweden, Dalarne
Size
:
no data
ID
:
6875000018
Genus
: Mesnaquaceras Flower, 1955 â
Genus species
:
Mesnaquaceras curviseptatum
Author
:
Flower, 1955 †
Locality
:
United States, Vermont, Grand Isle
Size
:
no data
ID
:
6875000030
