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Rhaphidograptus, a new Graptolite Genus.

Published online by Cambridge University Press:  01 May 2009

O. M. B. Bulman
O. M. B. Bulman
Affiliation:
Sedgwick Museum, Cambridge.
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Extract

THE genus Dimorphograptus was founded by Lapworth (1876) for uni-biserial graptolites transitional between Diplograptus and Monograptus, evolution along what is now termed the “ Monograptid trend ” leading to the production of a uniserial proximal portion of the rhabdosome. Akidograptus has been proposed more recently by K. A. Davies for an early stage in the Dimorphograptus series, represented by the species Ak. acuminatus (Nicholson) and Ak. ascensus Davies.

Type
Original Articles
Information
Geological Magazine , Volume 73 , Issue 1 , January 1936 , pp. 19 - 26
Copyright
Copyright © Cambridge University Press 1936

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References

REFERENCES

Bassler, R. S., 1915. “Bibliographic Index of American Ordovician and Silurian Fossils,” U.S. Nat. Mus. Bull., 92.Google Scholar
Bulman, O. M. B., 1932. “Notes on the Evolution and Morphology of Certain Graptoloidea,” Arkiv för Zoologi, 24, No. 13.Google Scholar
Davies, K. A., 1929. “Notes on the Graptolite Faunas of the Upper Ordovician and Lower Silurian,” Geol. Mag., LXVI, 1–27.CrossRefGoogle Scholar
Elles, G. L., 1922. “The Graptolite Faunas of the British Isles,” Proc. Geol. Assoc., xxxiii, 168–200.CrossRefGoogle Scholar
Elles, G. L., and Wood, E. M. R.. 1906. “Monograph of British Graptolites,” Palaeont. Soc., London, pt. v.Google Scholar
Elles, G. L., and Wood, E. M. R.. 1908. Palaeont. Soc., London, pt. vii.Google Scholar
Hsü, S. C., 1934. “The Graptolites of the Lower Yangtze Valley,” Mon. Nat. Research Inst. Geol. (Acad. Sinica), ser. A, vol. iv.Google Scholar
Lapworth, C., 1876. “On Scottish Monograptidae,” pt. iv, Geol. Mag., 544–552.CrossRefGoogle Scholar
Törnquist, S. L., 1897. “On the Diplograptidae and Heteroprionidae of the Scanian Rastrites Beds,” Kgl. Fysiogr. Sällsk. i Lund. Handl., n.f. viii, 1–24.Google Scholar
Wiman, C., 1895. “Über die Graptolithen,” Bull. Geol. Inst. Upsala, ii, pt. 2, no. 4.Google Scholar