Tagasi otsingusse
Loydell et al., 1997

Graptolites of the genus Mediograptus Bouček and Přibyl from the uppermost Llandovery of Cornwallis Island, Arctic Canada

Loydell, D. K., Mckenniff, J., Lenz, A. C.
DOI
DOI10.1139/e17-063
Aasta1997
AjakiriCanadian Journal of Earth Sciences
Köide34
Number6
Leheküljed765-769
Tüüpartikkel ajakirjas
Keelinglise
Id3984

Abstrakt

Isolated specimens of three species of Mediograptus are described from latest Llandovery (Telychian) strata of the Cape Phillips Formation, Cornwallis Island. One species is new, Mediograptus? bicercis n. sp., whereas the other two, Mediograptus flittoni and Mediograptus morleyae, have previously been recorded only from the Telychian of Wales. A possible paleolatitudinal control on mediograptid distribution is suggested, with one suite of taxa characterizing higher paleolatitudes (Bohemia), the other, including the species described herein, lower paleolatitudes (Wales, Arctic Canada). The diagnosis for the genus Mediograptus is emended.

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