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pro vyhledávání: '"Keith Preston Young"'
Publikováno v:
AAPG Bulletin. 40
Autor:
Edward Marks, Keith Preston Young
Publikováno v:
AAPG Bulletin. 36
A biostratigraphic study of the "Austin group" in Williamson County, Texas, shows that this group can be subdivided into six faunal zones. These are, in ascending order, the Inoceramus subquadratus, zone Inoceramus undulatoplicatus zone, Texanites in