-
Darriwilian is
defined as the
first appearance of the
graptolite species Undulograptus austrodentatus around 467.3
million years ago. It
lasted for
about 8...
- GSSP
ratified 2007
Upper boundary definition FAD of the
Graptolite Undulograptus austrodentatus Upper boundary GSSP
Huangnitang Section, Huangnitang...
- 1859 (=
Retiograptus Hall, 1865) †Styracograptus Štorch et al., 2011 †
Undulograptus Bouček, 1973 Maletz, Jörg (2017).
Graptolite Paleobiology. Wiley-Blackwell...
-
Huangnitang Village, Changshan, Zhejiang,
China Biologic:
First appearance of
Undulograptus austrodentatus (Graptolite). 28°51′14″N 118°29′23″E / 28.8539°N 118...
-
Retiograptus Hall, 1865)
Styracograptus Climacograptidae Štorch et al., 2011
Undulograptus Climacograptidae Bouček, 1973
Aclistograptus Dicranograptidae, Subfamily...
- The
boundary is
defined as the
first appearance of the
graptolite Undulograptus austrodentatus. The
graptolite Arienigraptus zhejiangensis appears 0...
