Griffith & Brydone (1911); Brydone (1912) - Micraster coranguinum Zone: Difference between revisions

From MediaWiki
Jump to navigation Jump to search
Dbk (talk | contribs)
Image-reviewer, administrator, autoreview, Bots, Bureaucrats, commentadmin, editor, Interface administrators, reviewer, smwadministrator, smwcurator, Administrators, Upload Wizard campaign editors, widgeteditor
18,248 edits
Created page with " '''Biostratigraphical correlation''': Equates with an interval from within the lower part of the ''M. coranguinum'' Zone to the top of the ''U. socialis'' Zone of current us..."
 
Dbk (talk | contribs)
Image-reviewer, administrator, autoreview, Bots, Bureaucrats, commentadmin, editor, Interface administrators, reviewer, smwadministrator, smwcurator, Administrators, Upload Wizard campaign editors, widgeteditor
18,248 edits
No edit summary
 
Line 1: Line 1:
'''Biostratigraphical correlation''': Equates with an interval from within the lower part of the ''M. coranguinum'' Zone to the top of the ''U. socialis'' Zone of current usage. Griffith & Brydone (1911) restricted the concept of the ''M. coranguinum'' Zone to exclude strata below the range of the zonal index. Brydone (1912) advocated the future establishment of a separate Zone of ''Uintacrinus'', and stated (p 17) that 'future references in this paper to the ''cor-anguinum'' Zone should be taken as not intended to apply to the ''Uintacrinus'' band unless the latter is expressly mentioned'.
'''Biostratigraphical correlation''': Equates with an interval from within the lower part of the ''M. coranguinum'' Zone to the top of the ''U. socialis'' Zone of current usage. Griffith & Brydone (1911) restricted the concept of the ''M. coranguinum'' Zone to exclude strata below the range of the zonal index. Brydone (1912) advocated the future establishment of a separate Zone of ''Uintacrinus'', and stated (p 17) that 'future references in this paper to the ''cor-anguinum'' Zone should be taken as not intended to apply to the ''Uintacrinus'' band unless the latter is expressly mentioned'.


Latest revision as of 15:03, 30 September 2013

Biostratigraphical correlation: Equates with an interval from within the lower part of the M. coranguinum Zone to the top of the U. socialis Zone of current usage. Griffith & Brydone (1911) restricted the concept of the M. coranguinum Zone to exclude strata below the range of the zonal index. Brydone (1912) advocated the future establishment of a separate Zone of Uintacrinus, and stated (p 17) that 'future references in this paper to the cor-anguinum Zone should be taken as not intended to apply to the Uintacrinus band unless the latter is expressly mentioned'.

Lithostratigraphical correlation: Equates with the middle and upper Seaford Chalk Formation and basal Newhaven Chalk Formation of southern England.

Age: Late Coniacian and Early Santonian.

Retrieved from "http://earthwise.bgs.ac.uk/index.php?title=Griffith_%26_Brydone_(1911);_Brydone_(1912)_-_Micraster_coranguinum_Zone&oldid=1739"