Abstract
Twenty six of the more important species of monograptids (s.l.), retiolitids andCyrtograptus(from a total fauna of 52 species) are described from Wenlock strata of the Cape Phillips Formation, Canadian Arctic Archipelago. Of this fauna, eight new species or subspecies,Monograptus firmus festinolatus, M. instrenuus, M. opimus, M. testis incomptus, Cyrtograptus falcatus, C. hamatus brevis, C. kolobusandC. pseudomancki, are described and illustrated.Wenlock biostratigraphic zones comprise theCyrtograptus centrifugus-C. insectusZone (earliest Wenlock),M. instrenuus-C. kolobusZone, tentatively divisible into lower and upper subzones,C. perneri-M. opimusZone possibly divisible into lower and upper subzones, C.lundgreni-M. testisZone divisible into a lowerM. testis incomptusSubzone and an upperM. testis testisSubzone, and thePristiograptus ludensisZone (latest Wenlock).
Publisher
Cambridge University Press (CUP)
Subject
Paleontology,Earth and Planetary Sciences (miscellaneous)
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