Geological Timescale

Stratotype Point Base of Wenlock

http://resource.geosciml.org/classifier/ics/ischart/BaseWenlockSP

label Stratotype Point Base of Wenlock
ratified GSSP true
boundary level Base of the Buildwas Formation
comment Hughley Brook, UK
correlation event Imprecise. Between the Base of acritarch biozone 5 and LAD of conodont Pterospathodus amorphognathoides. The current Stratotype Point does not coincide with the Base of the Cyrtograptus centrifugus Biozone, as was supposed when the Stratotype Point was defined. Restudy recommends a slightly higher and correlatable level on condonts the Ireviken datum 2, which coincides approximately with the Base of the murchisoni Graptolite Biozone
see also
Sheinwoodian-Ludfordian.pdf original
index.html original
source
Episodes 5/3, p. 21-23, 1982
Geol. Series, Nat. Mus. Wales, 9, p. 51 73, 1989
Lethaia 14
status Ratified 1980
type
StratigraphicPoint original
Resource original
Concept original
has geometry Location of Stratotype Point Base of Wenlock original