- is
defined as the
first appearance datum of the
graptolite species Diplacanthograptus caudatus. This
horizon is 4.0 m
above the base of the
Bigfork Chert...
-
Ridge section, Oklahoma,
United States Biologic:
First appearance of
Diplacanthograptus caudatus (Graptolite). Climatic: Just
below base of
Guttenberg carbon...
- 1985 †Clathrograptus Lapworth, 1873 †Climacograptus Hall, 1865 †
Diplacanthograptus Mitc****, 1987 †Euclimacograptus Riva, 1989 in Riva &
Ketner (1989)...
- GSSP
ratified 2002
Upper boundary definition FAD of the
Graptolite Diplacanthograptus caudatus Upper boundary GSSP
Black ****
Ridge section, Oklahoma, United...
-
Climacograptidae Lapworth, 1873
Climacograptus Climacograptidae Hall, 1865
Diplacanthograptus Climacograptidae Mitc****, 1987
Euclimacograptus Climacograptidae...
