Classification of Ager 1962
G. †Calcirhynchia Buckman 1917
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†Calcirhynchia calcaria Buckman 1917
†Calcirhynchia glevensis Davidson 1878
G. †Cuneirhynchia Buckman 1917
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†Cuneirhynchia dalmasi Dumortier 1869
†Cuneirhynchia oxynoti Quenstedt 1852
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Invalid names: Rhynchonella ranina Suess 1860 [objective synonym]
G. †Gibbirhynchia Buckman 1917
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†Gibbirhynchia amalthei Quenstedt 1852
†Gibbirhynchia curviceps Quenstedt 1852
†Gibbirhynchia gibbosa Buckman 1917
†Gibbirhynchia micra Ager 1954
†Gibbirhynchia muirwoodae Ager 1954
†Gibbirhynchia northamptonensis Davidson 1878
†Gibbirhynchia thorncombiensis Buckman 1922
†Gibbirhynchia tiltonensis Ager 1954
G. †Piarorhynchia Buckman 1917
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†Piarorhynchia juvenis Quenstedt 1852
†Piarorhynchia radstockiensis Davidson 1878
†Piarorhynchia rostellata Quenstedt 1858
†Piarorhynchia thalia d'Orbigny 1850
G. †Pseudogibbirhynchia Ager 1962
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†Pseudogibbirhynchia jurensis Quenstedt 1858
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Invalid names: Rhynchonella bothenhamptonensis Walker 1892 [synonym]
†Pseudogibbirhynchia moorei Davidson 1852