There are 2 matches

Collection Authorizer Collection name Reference
23402S. Holland Decorah Shale Echinoderms, Upper Mississippi Valley Rocklandian/Shermanian - Ordovician 4-5 - Minnesota Kolata et al. (1987)
23403S. Holland Cummingsville Formation Echinoderms, Upper Mississippi Valley Shermanian - Ordovician 4-5 - Minnesota Kolata et al. (1987)

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