Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
  Journal of Paleontology   Don't get GSW? Talk to your librarian.
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Journal of Paleontology; March 1962; v. 36; no. 2; p. 285-293
This Article
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Right arrow Order Hardcopy of Full Text via AGI/GeoRef
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Berry, W. B. N.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Graptolite occurrence and ecology

William B. N. Berry

Graptolite species have long been considered to have been world-wide in occurrence. Consideration of interregional correlation has revealed that 3 faunal regions may be recognized for the Lower and in the early part of the Middle Ordovician. Camaroids, tuboids, stolonoids, and many dendroids were benthonic, encrusting shells or other firm objects, or attached to the bottom. Graptoloids were planktonic and lived in the surface layers of the water; many floated at some depth beneath the surface. The latter types were not so widely dispersed as the former. Many geographically widespread species had visible float structures, whereas those without such structures were limited in their geographic range. Graptolites are not restricted in general to black shales or to fine-grained or quiet-water deposits. They do occur in many sedimentary rock types and in those that formed under turbulent as well as quiet conditions. Graptolites are not restricted to eugeosynclinal deposits. Many well-preserved specimens and the most nearly complete successions of assemblages are known from miogeosynelinal deposits. A broader knowledge of graptolite occurrence should lead to a better understanding of their mode of life and their usefulness for correlation.

This record provided courtesy of AGI/GeoRef.




This article has been cited by other articles:


Home page
 Geological Society, London, Special PublicationsHome page
D. K. Loydell
Worldwide correlation of Telychian (Upper Llandovery) strata using graptolites
Geological Society, London, Special Publications, January 1, 1993; 70(1): 323 - 340.
[Abstract] [PDF]

Home page
 Geological Society, London, MemoirsHome page
S. C. Finney and X. Chen
The relationship of Ordovician graptolite provincialism to palaeogeography
Geological Society, London, Memoirs, January 1, 1990; 12(1): 123 - 128.
[Abstract] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
J. Paskevicius
Assemblages of Silurian graptolites in various facies of the East Baltic region
Geological Society, London, Special Publications, January 1, 1986; 20(1): 237 - 245.
[Abstract] [PDF]

Home page
 Quarterly Journal of the Geological SocietyHome page
O. M. B. BULMAN
Lower Palaeozoic plankton: PRESIDENT'S ANNIVERSARY ADDRESS 1964
Quarterly Journal of the Geological Society, February 1, 1964; 120(1-4): 455 - 476.
[Abstract] [PDF]


JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Paleontological Society