-
Devonian some 390
million years ago (around
Eifelian stage).
Goniatites (
goniatitids)
survived the Late
Devonian extinction to
flourish during the Carboniferous...
- Devonian–Carboniferous
boundary to the
Early Tri****ic.
Although not as
diverse as
their goniatitid contemporaries, the
Prolecanatida provided the
stock from
which all later...
-
Clyclolobus is a smooth,
essentially involute subdiscoidal goniatitid ammonoid that has
sutures with a
bifurcate ventral lobe,
flared outwardly at the...
-
Umbetoceras is an
extinct group of
marine molluscs. The
genus belongs to the
goniatitid superfamily Gastrioceratoidea and
family Homoceratidae; with examples...
-
Prionoceratoidea is a
superfamily in the
goniatitid suborder,
Tornoceratatina that was
extant during the
latter Paleozoic. The
inclusive taxonomy of the...
-
Anthracoceras is the type
genus of the
goniatitid ammonoid family Anthracoceratidae whose species are
found Mississippian-aged
limestones in Eurasia, North...
- Tornoceratoidea, also
known as Tornocerataceae, is a
superfamily of
goniatitid ammonoids included in the
suborder Tornoceratina. Tornoceratoidea, or Tornocerataceae...
-
Truyolsoceras is an
Upper Devonian ammonite (subclass Ammonoidea)
included in the
goniatitid subfamily Aulatornoceratinae. The s**** is involute, lenticular, with...
-
Donetzoceras is a
genus belonging to the
goniatitid family Gonioglyphioceratidae ;
extinct ammonoids which are s****ed
cephalopods more
closely related...
-
Gleboceras is a
globular goniatitid from the
upper Carboniferous of the Urals,
named by Ruzhentsev, 1950,
tentatively ****igned to the Thal****oceratidae...
