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On some of the Proterozoic Gasteropoda which have been referred to Murchisonia and Pleurotomaria, with descriptions of new subgenera and species
J. G. Donald
1902
Article
Quarterly Journal of the Geological Society of London
58(4):313-339
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Taxa discussed in this work:
Cyrtostropha
Cyrtostropha obscura
Cyrtostropha ordovix
Cyrtostropha robusta
Cyrtostropha scitula
Cyrtostropha torquata
Donaldiella filosa
Goniospira
Goniospira filosa
Hormotoma ordovix
Hormotoma polita
Hormotoma robusta
Lophospira borealis
Lophospira variablis
Murchisonia (Goniospira)
Murchisonia dudleyensis
Murchisonia elegans
Palaeoschisma
Palaeoschisma girvanense
Turritoma pinguis