Acutirostris - spinosa Zone

From MediaWiki
Revision as of 11:03, 30 September 2013 by Dbk (talk | contribs) (Created page with " '''Definition''': From first appearance of ''Rugia acutirostris'' to immediately below first appearance of ''Rugia spinosa'' (Johansen & Surlyk, 1990). Brachiopod density an...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search


Definition: From first appearance of Rugia acutirostris to immediately below first appearance of Rugia spinosa (Johansen & Surlyk, 1990). Brachiopod density and diversity are high through the zone (Johansen & Surlyk, 1990).

Biostratigraphical correlation: The zone equates with the basal part of the B. lanceolata Zone of the traditional macrofossil biozonal scheme.

Lithostratigraphical correlation: The zone equates with the lower part of the Sidestrand Chalk Member (Johansen & Surlyk, 1990).

Retrieved from "http://earthwise.bgs.ac.uk/index.php?title=Acutirostris_-_spinosa_Zone&oldid=1618"