- Parkesolithus, Pragolithus, Protoincaia, Protolloydolithus, Reedolithus,
Reuscholithus, Salterolithus, Stapeleyelta, Telaeomarrolithus, Tetrapsetlium, Tretaspis...
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Parkesolithus Pragolithus Protoincaia Protolloydolithus Reedolithus Reuscholithus Salterolithus Smeathenia Stapeleyella Telaeomarrolithus Tetrapsellium...
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Resimopsis Resseraspis Resseria Resserops Resseropsis Retamaspis Reubenella Reuscholithus Reussiana Rhadinopleura Rhaxeros (=Rhax)
Rheicops Rhenocynproetus Rhenogriffides...
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praecox Bancroft, 1949, from the
Smeathen Wood Beds (Harnagian Stage,
Reuscholithus reuschi Biozone) near Horderley, Wistanstow, Shropshire, England. Gravicalymene...