Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-23T16:33:20.805Z Has data issue: false hasContentIssue false

Trilobite traces from the Lower Tremadoc of Tortworth

Published online by Cambridge University Press:  01 May 2009

T. P. Crimes
Affiliation:
Department of GeologyUniversityLiverpool, L69 3BX

Summary

The ichnogeneric status of trilobite furrows (Cruziana) and resting excavations (Rusophycus) is discussed and the suggestion (Seilacher, 1970) that these two distinct types of trace should be united under the genus Cruziana is rejected.

Type
Articles
Copyright
Copyright © Cambridge University Press 1975

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

Bergström, J. 1972. Appendage morphology of the trilobite Cryptolithus and its implications. Lethaia 5, 8594.CrossRefGoogle Scholar
Bergström, J. 1973. Organization, life, and systematics of trilobites. Fossils and Strata 2, 169.CrossRefGoogle Scholar
Birkenmajer, K. & Bruton, D. L. 1971. Some trilobite resting and crawling traces. Lethaia 4, 303–19.CrossRefGoogle Scholar
Crimes, T. P. 1968. Cruziana: A stratigraphically useful trace fossil. Geol. Mag. 105, 360–4.CrossRefGoogle Scholar
Crimes, T. P. 1970(a). Trilobite tracks and other trace fossils from the Upper Cambrian of North Wales. Geol. J. 7, 4768.CrossRefGoogle Scholar
Crimes, T. P. 1970(b). The significance of trace fossils in sedimentology, stratigraphy and palaeoecology with examples from Lower Palaeozoic strata. In Crimes, T. P. & Harper, J. C. (Eds): Trace Fossils. Geol. J. spec. issue 3, 101–26. (Liverpool, 1970.)Google Scholar
Crimes, T. P. 1974. The production and preservation of trilobite resting and furrowing traces. Lethaia (in the press).Google Scholar
Curtis, M. L. K. 1968. The Tremadoc rocks of the Tortworth inlier, Gloucestershire. Proc. Geol. Ass. 79, 349–62.CrossRefGoogle Scholar
Hall, J. 1852. Paleontology of New York. Vol. II pp. 362. Albany.Google Scholar
Léssertisseur, J. 1955. Traces fossiles d'activité animale et leur signification paléobiologique. Mem. Soc. géol. Fr. 74.Google Scholar
D'Orbigny, A. 1842. Voyage dans L'Amérique méridionale. Bertrand, Paris, and Levrault, Strasburg 3 (4) partie (Paleontol.) 188 pp.Google Scholar
Orlowski, S., Radwański, A. & Roniewicz, P. 1970. The trilobite ichnocoenoses in the Cambrian sequence of the Holy Cross Mountains. In Crimes, T. P. & Harper, J. C. (Eds): Trace Fossils. Geol. J. spec. issue 3, 345–60. (Liverpool, 1970.)Google Scholar
Orlowski, S., Radwański, A. & Roniewicz, P. 1971. Ichnospecific variability of the Upper Cambrian Rusophycus from the Holy Cross Mts. Acta geol. pol. 21, 341–8.Google Scholar
Osgood, R. G. 1970. Trace fossils of the Cincinnati area. Palaeontographica Americana 6 (41), 281444.Google Scholar
Radwański, A. & Roniewicz, P. 1963. Upper Cambrian trilobite ichnocoenosis from Wielka Wiśniówka (Holy Cross Mountains, Poland). Acta palaeont. pol. 8, 259–75.Google Scholar
Radwański, A. & Roniewicz, P. 1972. A long trilobite-trackway, Cruziana semiplicata Salter, from the Upper Cambrian of the Holy Cross Mts. Acta geol. pol. 22, 439–47.Google Scholar
Salter, J. W. 1853. On the lowest fossiliferous beds of North Wales. Rep. Brit. Ass. Advmt. Sci. (for 1852), 56–8. (London, 1853.)Google Scholar
Schmitz, U. 1971. Stratigraphie und sedimentologie im Kambrium und Tremadoc der Westlichen Iberischen Ketten nordlich Ateca (Zaragoza), NE-Spanien. Munster. Forsch. Geol. Palaeont. 22, 1123.Google Scholar
Seilacher, A. 1953. Über die Methoden der Palichnologie Die fossilien Ruhespuren (Cubichnia). Neues Jb. Geol. Paläont. 98, 87124.Google Scholar
Seilacher, A. 1955. Spuren und Lebensweise der Trilobiten. In Schindewolf, O. H. & Sielacher, A., (Eds): Beiträge zur Kenntnis des Kambriums in der Salt Range (Pakistan). Abh. mat. naturw. Kl. Akad. Wiss. Mainz 10, 86143.Google Scholar
Seilacher, A. 1960. Lebensspuren als Leitfossilien. Geol. Rdsch. 49, 4150.CrossRefGoogle Scholar
Seilacher, A. 1964. Biogenic sedimentary structures. In Imbrie, J. & Newell, N. (Eds): Approaches to Paleoecology. pp. 296316. (New York, 1964.)Google Scholar
Seilacher, A. 1970. Cruziana stratigraphy of ‘non-fossiliferous’ Palaeozoic sandstones. In Crimes, T. P. & Harper, J. C. (Eds): Trace Fossils. Geol. J. spec. issue 3, 447–6. (Liverpool, 1970.)Google Scholar
Seilacher, A. & Crimes, T. P. 1969. ‘European’ species of Trilobite burrows in Eastern Newfoundland. In Kay, M. (Ed.): North Atlantic – Geology and Continental Drift. Mem. Amer. Ass. Petrol. Geol. 12, 145–8.Google Scholar