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Data sets Publications Expeditions Thesaurus
Hoosac Formation  search
UFHoosac Schist
RTProterozoic
 Neoproterozoic
 Cambrian
 Vermont
 Massachusetts
 Connecticut
SNLower Cambrian and Neoproterozoic. W Massachusetts, W Connecticut and S Vermont. Schist. Indexed with ages as applicable. Added to Thesaurus in 1993.