| Homocrinus parvus Rochester Shale Middleport, New York Size: Slab is 21 X 16.5 cm The slab is covered with very tiny crinoid crowns. | 
|
| Homocrinus parvus Rochester Shale Middleport, New York Size: Slab is 21 X 16.5 cm The slab is covered with very tiny crinoid crowns. |
|