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
PROTOCYCLOCERATIDAE
Genus
: Protocycloceras Ulrich & al., 1944 â
Protocycloceras abnorme
Ulrich & al., 1944 †
Protocycloceras arkansasense
Ulrich & al., 1944 †
Protocycloceras becki
(Billings, 1859 †)
Protocycloceras catulus
(Billings, 1865 †)
Protocycloceras chikunense
T. Kobayashi, 1927 †
Protocycloceras deprati
Reed, 1928 †
Protocycloceras doniphonense
Ulrich & al., 1944 †
Protocycloceras furtivum
(Billings, 1865 †)
Protocycloceras gangshanense
Zou, 1988 †
Protocycloceras geronticum
Ulrich & al., 1944 †
Protocycloceras krivolukense
Balaschov, 1962 †
Protocycloceras lamarcki
(Billings, 1856 †)
Protocycloceras laswelli
Hook & Flower, 1977 †
Protocycloceras levisense
Ulrich & al., 1944 †
Protocycloceras manitouense
Ulrich & al., 1944 †
Protocycloceras mendax
(Salter & Murchison, 1859 †)
Protocycloceras odenvillense
Ulrich & al., 1944 †
Protocycloceras ordinatum
(Billings, 1865 †)
Protocycloceras philipsburgense
Ulrich & al., 1944 †
Protocycloceras repens
Billings, 1856 †
Protocycloceras rushense
(McChesney, 1859 †)
Protocycloceras smithvillense
Ulrich & al., 1944 †
Protocycloceras whitfieldi
Ruedemann, 1906 †
Protocycloceras xerxes
(Billings, 1865 †)