| Filter: Genus=%Oligoptycha%; | Sort by: Accession # Taxon Locality |
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| AccessionNo | Genus | Species | TypeStatus | AuthorDate | Country | State | County | Formation | Age | |
| 27838.24 | Oligoptycha | obliqua | VOUCHER | Taff, Hanna, & Cross, 1940 | USA | California | Butte | Chico | CRETACEOUS | Details |
| 27838.25 | Oligoptycha | obliqua | VOUCHER | Taff, Hanna, & Cross, 1940 | USA | California | Butte | Chico | CRETACEOUS | Details |
| 71914.00 | Oligoptycha | obliqua | VOUCHER | Schenck & Keen, 1940 | USA | California | Butte | Chico | CRETACEOUS | Details |
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