Browsing ELibrary by Subject "CAMBRO-ORDOVICIAN"

Browsing ELibrary by Subject "CAMBRO-ORDOVICIAN"

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  • THE TRILOBITE FAMILY NILEIDAE: MORPHOLOGY AND CLASSIFICATION 
    Whittington H.B. (2003)
    Species of genera currently referred to Nileidae are reviewed, and those of Hemibarrandia, Lakaspis, Peraspis and Symphysurina are excluded from the family. Nileidae are united in having a distinctive form of the hypostome, ...