Classification of Pettitt 1954
G. †Orbirhynchia Pettitt 1954
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†Orbirhynchia bella Pettitt 1954
†Orbirhynchia compta Pettitt 1954
†Orbirhynchia cuvieri d'Orbigny 1847
†Orbirhynchia dispansa Pettitt 1954
†Orbirhynchia extensa Pettitt 1954
†Orbirhynchia granum Pettitt 1954
†Orbirhynchia heberti Pettitt 1954
†Orbirhynchia obscura Pettitt 1954
†Orbirhynchia orbignyi Pettitt 1954
†Orbirhynchia parva Pettitt 1954
†Orbirhynchia pisiformis Pettitt 1954
†Orbirhynchia reedensis Etheridge 1881