The new Early Ordovician (Hunneberg Stage) graptolite genus Paradelograptus (Kinnegraptidae), its phylogeny and biostratigraphy

ERDTMANN, B. -D ; MALETZ, J ; GUTIERREZ-MARCO, J. C

Paläontologische Zeitschrift, 1987-06, Vol.61 (1-2), p.109-131 [Periódico revisado por pares]

Stuttgart: Schweizerbart

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