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.
Strophiops primigenia Maynard, 1921b:143
Strophiops primigenia Maynard, 1924a:pl. 39, figs. 3, 4
Strophiops primigenia Harasewych et al., 2007:411, fig. 64
[25° 2' N, -77° 17' W]
Fossil in limestone beneath a sand-cliff on the east coast of Salt Key, New Providence Island, Bahamas.
There are 99 paralectotypes, including MCZ 356992 (55 specimens).
Maynard (1913:184) considered this to be the ancestor of all the species in the Primigenia group. This taxon was subsequently illustrated (Maynard, 1924a:pl. 39, figs. 3, 4). Maynard (1921:142) provided slightly smaller measurements and a different locality (east of