- GSSP
ratified 1984
Upper boundary definition FAD of the
graptolite Demirastrites triangulatus Upper boundary GSSP Hlásná Třebaň section,
Czech Republic...
-
graptolite genus Demirastrites,
providing evidence of
rotating locomotory pattern and
evolution of
morphology in the
Demirastrites lineage resulting...
- †Cyrtograpsus Carruthers, 1867 in
Murchison (1867) †Damosiograptus Obut, 1950 †
Demirastrites Eisel, 1912 †Dibranchiograptus Hundt, 1949 †Didymograptoides Hundt,...
- Hlásná Třebaň section,
Czech Republic Biologic:
First appearance of
Demirastrites triangulatus (Graptolite). 49°55′23″N 14°12′43″E / 49.9230°N 14.2119°E...
- Carruthers, 1867 in
Murchison (1867)
Damosiograptus Monograptidae Obut, 1950
Demirastrites Monograptidae Eisel, 1912
Dibranchiograptus Monograptidae Hundt, 1949...
-
Melchin (2018). "Lower
Aeronian triangulate monograptids of the
genus Demirastrites Eisel, 1912: biostratigraphy, palaeobiogeography,
anagenetic changes...
- span
formality Formal Lower boundary definition FAD of the
graptolite Demirastrites triangulatus Lower boundary GSSP Hlásná Třebaň section,
Czech Republic...
