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Title : | Upper Cambrian Fossils of Northampton County, Pennsylvania / B.F. Howell
| Main author : | Howell, Benjamin Franklin
| Extent : | S.45-56, : 4 Pls.
| UDC : | 56
| In : | Bulletin of the Wagner Free Institute of Science. -- 1955, Vol. 30, No. 4.
| Note : | separát
| | bibl.
| Citováno jako : | HOWELL, B.F. Upper Cambrian Fossils of Northampton County...Bull. Wagner Free Inst. Sci. 1955, Vol. 30, No. 4, S.45-56, 4 Pls.
| Kl.slova : | Anomalophycus compactus - Ptychopariidae - Dikelocephalidae - Plethopeltidae |
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