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Biddulphia quadrans Boyer 1922
| SchAR3459 Biddulphia quadrans Boyer 1922 Holotype specimen; Image Credit: Jonathan English |
| SchAR3459 Biddulphia quadrans Boyer 1922 Holotype specimen; Image Credit: Jonathan English |
| SchAR3459 Biddulphia quadrans Boyer 1922 Holotype specimen; Image Credit: Jonathan English |
| SchAR3459 Biddulphia quadrans Boyer 1922 Holotype specimen; Image Credit: Jonathan English |
| SchAR3459 Biddulphia quadrans Boyer 1922 Holotype specimen; Image Credit: Jonathan English |
