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Wrevittia
General
Description
Stratigraphy
Literature
Notes
Species
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Name
Original Description
cassidata
Eisenack, A. and Cookson, I. (1960)
diutina
Duxbury, S. (1977)
diutina ssp. diutina
Duxbury, S. (1977)
diutina ssp. tabulacornuta
Prössl, K.F. (1990)
helicoidea
Eisenack, A. and Cookson, I. (1960)
perforobtusa
Duxbury, S. (1977)
speciosa
Harding, I.C. (1990b)
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