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Ammonoids are extinct, (typically) coiled-s****ed
cephalopods comprising the
subclass Ammonoidea. They are more
closely related to
living octopuses, squid...
- the
subclass Ammonoidea and
included in the
family Crioceratidae of the
ammonitid superfamily Ancylocerataceae.
Crioceras is
considered by some to be a...
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Cranocephalites is a
Middle Jur****ic
ammonitid genus named by
Spath in 1932 and
included in the
family Cranoceratidae,
superfamily Stephanoceratacea....
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Rollerites is a Jur****ic
ammonite belonging to the
ammonitid. France,
Saudi Arabia and
Switzerland Notes Sepkoski, Jack (2002). "Sepkoski's
Online Genus...
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Riasanites is an
Upper Jur****ic
ammonite belonging to the
ammonitid. Poland, USSR and
Yemen Notes Sepkoski, Jack (2002). "Sepkoski's
Online Genus Database"...
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Coilopoceras is a compressed, involute,
lenticular ammonitid from the
Cretaceous (Albian to Turonian), with a
narrow venter and
raggedy ammonitic suture;...
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Hyperlioceras is an
extinct genus of
cephalopod included in the
ammonitid family Graphoceratidae that
lived during the
Bajocian stage of the
Middle Jur****ic...
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Praestrigites is a
genus from the
family Strigoceratidae which is
included in the
ammonitid superfamily Haploceratoidea.
Praestrigites was
named by
Buckman in 1924...
- the
strigoceratid subfamily Disticocratinae which are
included in the
ammonitid superfamily Haplocerataceae. Petitclercia,
named by Rollier, 1909. The...
-
Promicroceras is
included in the
family Eoderoceratidae,
which is part of the
ammonitid superfamily Eoderoceratoidea. S**** are
evolute with an open umbilicus;...
