| Filter: Genus=%Surcula%;Species=%io%; | Sort by: Accession # Taxon Locality |
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| AccessionNo | Genus | Species | TypeStatus | AuthorDate | Country | State | County | Formation | Age | |
| 344.00 | Surcula | io | VOUCHER | Dickerson, 1915 | USA | California | Kern | Tejon | EOCENE | Details |
| 311.00 | Surcula | ioformis | HOLOTYPE | Dickerson, 1915 | USA | California | Kern | Tejon | EOCENE | Details |
| 865.00 | Surcula | ioformis | PARATYPE | Anderson & Hanna, 1925 | USA | California | Kern | Tejon | EOCENE | Details |
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