- The
Frasnian is one of two
faunal stages in the Late
Devonian Period. It
lasted from 382.7
million years ago to 372.2
million years ago. It was preceded...
- also
known as the
Frasnian-Famennian extinction,
which occurred around 372
million years ago, at the
boundary between the
Frasnian age and the Famennian...
- but
rather is a
series of
pulsed extinctions at the Givetian-
Frasnian boundary, the
Frasnian-Famennian boundary, and the Devonian-Carboniferous boundary...
- (24–28 in) in length. D. terrelli's
fossil remains are
found in
Upper Frasnian to
Upper Famennian Late
Devonian strata of the
United States (Huron, Chagrin...
-
occurred within the
Frasnian age of the
Devonian at
about 377-378 Ma, a
moment in time that was
about 5.9 Ma
prior to the
Frasnian/Famennian extinction...
- 2
million years ago to 358.9
million years ago. It was
preceded by the
Frasnian stage and
followed by the
Tournaisian stage. In the seas, a
novel major...
- the
cladogram below: The type genus, Dunkleosteus, is
known from Late
Frasnian and Famennian-aged
marine strata from Europe, Morocco, and
North America...
- cystoids), and fish,
including all
placoderms and ostracoderms. 372.2 ± 1.6 *
Frasnian 382.7 ± 1.6 *
Middle Givetian 387.7 ± 0.8 *
Eifelian 393.3 ± 1.2 * Lower/Early...
-
described from
isolated cladodont teeth found in
deposits from the
upper Frasnian to
lower Fammenian of
central Iran. The
specific epithet is
derived from...
- tetrapods. All
known forms of
Frasnian tetrapods became extinct in the Late
Devonian extinction, also
known as the end-
Frasnian extinction. This
marked the...
