| Isotelus sp. Arnheim Formation Mt. Orab, Ohio Size: 1.9 cm across Part of the cephalon is also present Price: $20 US ID number: f1587 | 
|
| Isotelus sp. Arnheim Formation Mt. Orab, Ohio Size: 1.9 cm across Part of the cephalon is also present Price: $20 US ID number: f1587 |
|