| Belochthus orthokalus Edrioasteroids Bobcaygeon Formation Brechin, Ontario, Canada Three specimens of Belochthus and one specimen of Cryptogoleus chapmani Size: 2 cm diameter for the largest edrioasteroid. | 
|
| Belochthus orthokalus Edrioasteroids Bobcaygeon Formation Brechin, Ontario, Canada Three specimens of Belochthus and one specimen of Cryptogoleus chapmani Size: 2 cm diameter for the largest edrioasteroid. |
|