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المؤلفون: Oldřich Fatka, Jaroslav Herynk
المصدر: Annales de Paléontologie. 102:219-224
مصطلحات موضوعية: 010506 paleontology, biology, Fauna, Paleontology, 010502 geochemistry & geophysics, biology.organism_classification, 01 natural sciences, Sequence (geology), Gondwana, Wiwaxia, Taxon, Genus, Hurdia, Tuzoia, Geology, 0105 earth and related environmental sciences