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What is the biostratigraphic value of the ichnofossil Oldhamia for the Cambrian: a review

Alain Herbosch and Jacques Verniers UGent (2011) GEOLOGICA BELGICA. 14(3-4). p.229-248
abstract
We have undertaken an exhaustive review of the literature to check if the ichnogenus Oldhamia could be used as a biostratigraphical tool in the Cambrian. On the 19 occurrences observed worldwide and positioned in the recent global chronostratigraphy of the Cambrian, only 16 have a time range sufficiently precise to constrain the stratigraphic interval during which the organisms producing Oldhamia lived in the Cambrian. They are clearly distributed in two age groups: a "younger" group of 14 occurrences shows a very well constrained time range from the base of Stage 3 to the three quarter of Stage 5 and an "older" group of 2 occurrences shows a poorly constrained time range which seems restricted to the Fortunian. With this contrasting situation we propose two alternative interpretations: in the first we accept all the results and in the second, more restrictive, we reject the age of the "older" group as scientifically insufficiently substantiated. Oldhamia can only be used as a stratigraphic tool in the second interpretation: it appears in the upper part of Stage 2, shows an acme in Stage 3 and 4 and rapidly disappears during Stage 5. This rapid disappearance could be interpreted as the arrival of the Cambrian agronomic revolution in the deep marine setting. The overview also shows that this ichnogenus has a cosmopolitan distribution.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Biostratigraphy, Avalonia, Cambrian agronomic revolution, palaeogeography, Gondwana, EUROPEAN SUTURE ZONE, HOLY-CROSS MOUNTAINS, SOUTH COUNTY DUBLIN, NORTHWEST ARGENTINA, TRACE FOSSILS, BRABANT-MASSIF, NW ARGENTINA, NOVA-SCOTIA, DEEP-SEA, PUNCOVISCANA-FORMATION
journal title
GEOLOGICA BELGICA
Geol. Belg.
volume
14
issue
3-4
pages
229 - 248
Web of Science type
Article
Web of Science id
000297182400008
JCR category
GEOLOGY
JCR impact factor
0.773 (2011)
JCR rank
28/46 (2011)
JCR quartile
3 (2011)
ISSN
1374-8505
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1221857
handle
http://hdl.handle.net/1854/LU-1221857
date created
2011-05-11 16:29:33
date last changed
2012-10-19 11:51:15
@article{1221857,
  abstract     = {We have undertaken an exhaustive review of the literature to check if the ichnogenus Oldhamia could be used as a biostratigraphical tool in the Cambrian. On the 19 occurrences observed worldwide and positioned in the recent global chronostratigraphy of the Cambrian, only 16 have a time range sufficiently precise to constrain the stratigraphic interval during which the organisms producing Oldhamia lived in the Cambrian. They are clearly distributed in two age groups: a {\textacutedbl}younger{\textacutedbl} group of 14 occurrences shows a very well constrained time range from the base of Stage 3 to the three quarter of Stage 5 and an {\textacutedbl}older{\textacutedbl} group of 2 occurrences shows a poorly constrained time range which seems restricted to the Fortunian. With this contrasting situation we propose two alternative interpretations: in the first we accept all the results and in the second, more restrictive, we reject the age of the {\textacutedbl}older{\textacutedbl} group as scientifically insufficiently substantiated. Oldhamia can only be used as a stratigraphic tool in the second interpretation: it appears in the upper part of Stage 2, shows an acme in Stage 3 and 4 and rapidly disappears during Stage 5. This rapid disappearance could be interpreted as the arrival of the Cambrian agronomic revolution in the deep marine setting. The overview also shows that this ichnogenus has a cosmopolitan distribution.},
  author       = {Herbosch, Alain and Verniers, Jacques},
  issn         = {1374-8505},
  journal      = {GEOLOGICA BELGICA},
  keyword      = {Biostratigraphy,Avalonia,Cambrian agronomic revolution,palaeogeography,Gondwana,EUROPEAN SUTURE ZONE,HOLY-CROSS MOUNTAINS,SOUTH COUNTY DUBLIN,NORTHWEST ARGENTINA,TRACE FOSSILS,BRABANT-MASSIF,NW ARGENTINA,NOVA-SCOTIA,DEEP-SEA,PUNCOVISCANA-FORMATION},
  language     = {eng},
  number       = {3-4},
  pages        = {229--248},
  title        = {What is the biostratigraphic value of the ichnofossil Oldhamia for the Cambrian: a review},
  volume       = {14},
  year         = {2011},
}

Chicago
Herbosch, Alain, and Jacques Verniers. 2011. “What Is the Biostratigraphic Value of the Ichnofossil Oldhamia for the Cambrian: a Review.” Geologica Belgica 14 (3-4): 229–248.
APA
Herbosch, A., & Verniers, J. (2011). What is the biostratigraphic value of the ichnofossil Oldhamia for the Cambrian: a review. GEOLOGICA BELGICA, 14(3-4), 229–248.
Vancouver
1.
Herbosch A, Verniers J. What is the biostratigraphic value of the ichnofossil Oldhamia for the Cambrian: a review. GEOLOGICA BELGICA. 2011;14(3-4):229–48.
MLA
Herbosch, Alain, and Jacques Verniers. “What Is the Biostratigraphic Value of the Ichnofossil Oldhamia for the Cambrian: a Review.” GEOLOGICA BELGICA 14.3-4 (2011): 229–248. Print.