Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-24T03:44:05.819Z Has data issue: false hasContentIssue false
  • English
  • Français

The Ordovician Graptolite Genus Paraglossograptus Mu

Published online by Cambridge University Press:  01 May 2009

R. B. Rickards
R. B. Rickards*
Affiliation:
Sedgwick Museum Cambridge CB2 3EQ, U.K.
Get access Rights & Permissions [Opens in a new window]

Summary

The lacinia in Paraglossograptus Mu is shown to consist of four ladder-like networks which are independent of each other and have no direct connection with spinose thecal apertural processes. The lacinial networks are positioned at the corners of the quadrangular rhabdosome as in Paraglossograptus ? sp. of Whittington & Rickards, which is described here as Paraglossograptus proteus (Harris & Thomas). Paraglossograptus etheridgei (Harris, 1924), the important Ordovician zone fossil, together with P. typicalis Mu and P. latus Hsü, are considered junior synonyms of Reteograptus tentaculatus J. Hall, 1865. P. tentaculatus (J. Hall, 1865), is regarded here as the type species of Paraglossograptus Mu. Detailed comparisons are made between P. tentaculatus and the stratigraphically younger P. proteus (Harris & Thomas), and with Glossograptus holmi Bulman, a species in some ways intermediate between Paraglossograptus and Glossograptus Emmons.

Type
Research Article
Information
Geological Magazine , Volume 109 , Issue 2 , March 1972 , pp. 99 - 113
Copyright
Copyright © Cambridge University Press 1972

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bassler, R. 1915. Bibliographic index of American Ordovician and Silurian fossils. Bull. U.S. natn. Mus. 92, 1 (7), 1–718.CrossRefGoogle Scholar
Berry, W. B. N. 1960. Graptolite faunas of the Marathon region, West Texas. Univ. Texas Publ. 6005, 1–179.Google Scholar
Berry, W. B. N. 1966. A discussion of some Victorian Ordovician Graptolites. Proc. R. Soc. Victoria, 79 (2), 415–48.Google Scholar
Bulman, O. M. B. 1970. Treatise on Invertebrate Palaeontology. In Teichert, C. (Ed.): Part V, Graptolithina, with sections on Enteropneusta and Pterobranchia. (2nd Edition), i–xxxii, 1–163, Geol. Soc. Am. & Univ. Kansas Press.Google Scholar
Clarke, T. H. 1924. The Paleontology of the Beekmantown Series at Levis, Quebec. Bull. Am. Paleont. 10, no. 41, 119 pp.Google Scholar
Clarke, T. H. 1926. The graptolites of the Glenogle formation. Can. Fld Nat. 40, 136–7.Google Scholar
Dewey, J. F., Rickards, R. B. & Skevington, D. 1970. New light on the age of Dalradian deformation and metamorphism in Western Ireland. Norsk geol. Tidsskr. 50, 19–44.Google Scholar
Erdtmann, B-D. 1971. Ordovician Graptolite Zones of Western Newfoundland in relation to Paleogeography of the North Atlantic. Bull. geol. Soc. Amer. 82, 1509–28.CrossRefGoogle Scholar
Gurley, R. R. 1896. North American graptolites; new species and vertical range. J. Geol. 4, 63–102, 291–311.CrossRefGoogle Scholar
Hall, J. 1858a. Descriptions of Canadian graptolites. Geol. Surv. Can. Rept. Progr. (1857), 111–45.Google Scholar
Hall, J. 1858b. Note upon the genus Graptolithus and description of some remarkable new forms from the shale of the Hudson River gp. Can. Nat. Geol. 3, 139–50, 161–77.Google Scholar
Hall, J. 1865. Figures and descriptions of Canadian organic remains; Decade II, Graptolites of the Quebec group. Can. Geol. Surv. 1–151.Google Scholar
Hall, J. 1868. Introduction to the study of the Graptolitidae. New York State Cab. Nat. Hist., 20th Ann. Rept., 169–240.Google Scholar
Hall, J. 1870. Introduction to the study of the Graptolitidae. New York State Cab. Nat. Hist. 20th Ann. Rept., 169–240, revised edition, 1870.Google Scholar
Harris, W. J. 1924. Victorian graptolites, new series, Pt. I. Proc. R. Soc. Victoria(n.s) 36, 92–106.Google Scholar
Harris, W. J. & Thomas, D. E. 1935. Victorian graptolites, new series, Pt. III. Proc. R. Soc. Victoria (n.s.) 47, 288–313.Google Scholar
Harris, W. J. 1938. Revised classification correlation of the Ordovician graptolite beds of Victoria. Victoria Dept. Mines Mining & Geol. Jour. 1, 62–72.Google Scholar
Hsü, S. C. 1959. A new graptolite fauna from the Lower Ordovician shale of Tsaidam, Chinghai Province. Acta. Pal. Sinica 7, 161–92.Google Scholar
Matthew, G. F. 1892. Illustrations of the fauna of the St. John group. No. 7. Trans. R. Soc. Can. 10, No. 4, 33–65, 85–109.Google Scholar
McLearn, F. H. 1915. The Lower Ordovician of St. John, New Brunswick, and the new genus Protistograptus . Am. J. Sci.ser. 4, 40, 49–59.CrossRefGoogle Scholar
Morris, W. M. & Kay, M. 1966. Ordovician graptolites from the Middle Table Head Formation at Black Cove, near Port au Port, Newfoundland. J. Paleont. 40, 1223–9.Google Scholar
Mu, A. T. 1963. Research in graptolite faunas of Chilianshan. Scientia Sinica, 12, 347–71.Google Scholar
Mu, A. T., Lee, C. K., Geh, M–y. & Yin, J. X. 1962. Graptolites from Chilianshan. Geology of Chilianshan, 4, No. 2, 1–127.Google Scholar
Mu, A. T. & Zhan, S. G. 1966. On the probable development and systematic position of Glossograptus . Acta. Pal. Sinica, 14, 99–109.Google Scholar
Raymond, P. E. 1914. The succession of faunas at Levis, P.Q. Am. J. Sci. 38, 523–30.CrossRefGoogle Scholar
Roemer, F. 1897. Lethaea Geognostica. I Theil., Leth. Pal. Bd. 1, 1f. 3. Leipzig.Google Scholar
Ruedemann, R. 1902. Graptolite facies of the Beekmantown formation in Rensselaer County, Bull. N. Y. St. Mus. 52, 546–75.Google Scholar
Ruedemann, R. 1904. Graptolites of NewYork. Pt. I. Graptolites of the lower beds. Mem. N. Y. St. Mus. 7, 457803.Google Scholar
Ruedemann, R. 1926. Report on graptolites. In Walker, J. F.: Geology and mineral deposits of Windermere map-area, British Columbia. Mem. geol. Surv. Can. 148, 25–31.Google Scholar
Ruedemann, R. 1933.Graptolites.In Evans, C. S.: Brisca–Dogtooth map-area, British Columbia. Geol. Surv. Can. Summ. Rept. for 1932, 137AII—138AII.Google Scholar
Ruedemann, R. 1947. Graptolites of North America. Mem. geol. Soc. Am., 19, 1–652.Google Scholar
Skwarko, S. K. 1962. Graptolites of Cobb River—Mount Arthur area, north-west Nelson, New Zealand. Trans. R. Soc. N. Z. 88, 215–47.Google Scholar
Thomas, D. E. 1960. The zonal distribution of Australian graptolites. J. Proc. R. Soc. N.S.W. 94, 1–58.Google Scholar
Whittington, H. B. & Rickards, R. B. 1969. Development of Glossograptus and Skiagraptus , Ordovician graptoloids from Newfoundland. J. Paleont. 43, 800–17.Google Scholar