- The
Tournaisian is in the ICS
geologic timescale the
lowest stage or
oldest age of the Mississippian, the
oldest subsystem of the Carboniferous. The Tournaisian...
- Visean)
Osagean (top of the
Tournaisian and
bottom of the Visean)
Kinderhookian (the
lower two-thirds of the
Tournaisian) "International Chronostratigraphic...
-
years of the Carboniferous, the
early Mississippian (starting with the
Tournaisian and
moving into the Visean). The gap
forms a
discontinuity between the...
-
divided into the
Tournaisian and Viséan stages. The
Silesian was
divided into the Namurian,
Westphalian and
Stephanian stages. The
Tournaisian is the same...
- Carboniferous. The
Visean lasted from 346.7 to 330.3 Ma. It
follows the
Tournaisian age/stage and is
followed by the
Serpukhovian age/stage. The Viséan Stage...
- the 'Strunian' (latest Famennian), and a
small portion of the
early Tournaisian. It is
named after the
Hangenberg Black Shale, a
distinctive layer of...
-
Famennian (Famenne),
Tournaisian (Tournai),
Visean (Visé),
Dinantian (Dinant), and
Namurian (Namur)".
Except for the
Tournaisian, all
these rocks are...
-
Borden Group, of the
Lower Mississippian sub system, (Osagean, late
Tournaisian).
Crinoids fossils can be
found in the formation.
Edwardsville Formation...
-
Persiax praecox is a
species of
phillipsiid proetid trilobite from
Tournaisian-aged
marine strata in what is now
Eastern Iran. The
original generic name...
-
among the
earliest known seed
plants and of
earliest Carboniferous (
Tournaisian) age. The
ovules of
Stamnostoma have a
complex apex with plug and cone...
