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Clydonautilus is a
genus of
nautiloids and type for the
Clydonautilidae that has been
found in the
Upper Tri****ic of Europe, India, and Timor. Its type...
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nodose keel
bordered by furrows. The
siphuncle position is unknown.
Clydonautilus, Cosmonautilus, Proclydonautilus, and
Styrionautilus are
closely related...
- and saddles. The
family is
known to
contain five genera,
These are:
Clydonautilus Callaionautilus Cosmonautilus Proclydonautilus Styrionautilus Of these...
- †Clelandoceras †Cliftonoceras †Clinoceras †Clionyssiceras †****endoceras †
Clydonautilus †Clymenonautilus †Clytoceras †Cochlioceras †Codoceras †Coelocyrtoceras...
- in the US, as well as Mexico, India, and Timor.
Callaionautilus and
Clydonautilus are
among related genera included in the Clydonautilidae.
Bernhard Kummel...
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venter and
angular ventral shoulders. The
suture resembles that of
Clydonautilus, from
which it must have been derived,
except for the more
highly developed...
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compressed s**** with
narrow flattened venter and a
suture like that of
Clydonautilus, but with a more
highly developed median saddle and double-pointed annular...
