- stage. In the seas, a
novel major group of
ammonoid cephalopods called clymeniids appeared,
underwent tremendous diversification and
spread worldwide, then...
-
Acanthoclymeniidae is a
family of early, primitive,
clymeniid ammonoid cephalopods that
lived during the Late Devonian. At one time this
family was known...
- Fröhlich, S.; Rücklin, M. & Wendt, J. (Jan 2007). "The
youngest African clymeniids (Ammonoidea, Late Devonian) –
failed survivors of the
Hangenberg Event"...
-
major Famennian group, the
clymeniids, were
already suffering smaller extinctions just
prior to the event.
Although clymeniids survived the
extinction event...
- Clymeniida,
restricted to the
Upper Devonian,
characterized as with all
clymeniids by a
dorsal siphuncle that runs
along the
inside of the whorls, unusual...
- Aragón.
Czarnoclymenia ibnrushdi † Korn, 1999
Ammonite Averroes A
fossil clymeniid from the
Devonian of Morocco,
named "After Ibn
Rushd (lat. Averroes),...
-
inside the
umbilical seam, and an
internal lobe on the dorsum. As for all
clymeniids, the
siphuncle is
along the dorsum. Taxonomy,
Goniat online 8/21/2010...
- York, Ohio, Oklahoma, and Utah) and
Australia (New
South Wales) as well.
Clymeniids produced a
variety of s****
ranging from
smooth to
ribbed and spinose...
-
between these Pennsylvanian and
Permian forms and the
Upper Devonian Clymeniids with
their well
established dorso-marginal siphuncles. The Paleobiology...
-
Frasnian are
developed as
reefal limestones. The
Famennian is
composed of
clymeniid-bearing
shales interbedded with spilites.
Mississippian sediments crop...
