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| Title : | Trilobites from the Peerless and Formations, Colorado / Robert R. Berg - Reube James Ross, JR.
| | Main author : |  Berg, R. R.
| | Subsequent responsibility : | Ross, R. J.
| | Extent : | S.106-119
| | UDC : | 56
| | In : | Journal of Paleontology. -- 1959, Vol.33, No.1.
| | Note : | separát
| | bibl.
| | Citováno jako : | BERG, R. R. - ROSS, R. J. Trilobites from the Peerless... J. Paleont. 1959, Vol.33, No.1, S.106-119: 2 Text-Figs., 2 Pls.
| | Kl.slova : | Ellipsocephaloides - Idahoia Walcott, 1924 - Ptychaspis Hall, 1863 - Symphysurina Ulrich, 1924 - Hystricurus Raymond, 1913 - Bellefontia Ulrich, 1924 |
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