{{Short description|Extinct genus of molluscs}} {{Automatic taxobox | fossil_range = Late Triassic | image = | image_caption = | taxon = Proclydonautilus | authority = Mojsisovics, 1902 }} thumb|left|350x350px|''Proclydonautilus (Cosmonautilus) dilleri'' with the visible sutural pattern. '''''Proclydonautilus''''' is a genus of nautiloids belonging to the Clydonautilidae known from the Upper Triassic of North America, Europe, and India.
The shell of ''Proclydonautilus'', like those of other Clydonautilitidae, is involute and smooth. It is distinguished by its suture which has a broad, shallow to deep ventral lobe that divides a large ventral saddle. A large lateral lobe on the flans is followed by a small lateral saddle and a second lateral lobe.
With regard to the suture ''Proclydonautilus'' is most similar to ''Cosmonautilus'' and ''Callaionautilus'', both also from the Late Triassic.
==References== {{Reflist}} * Berhard Kummel, 1964. Nautiloidea-Nautilida. Treatise on Invertebrate Paleontology, Part K. Geological Society of America.
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Category:Prehistoric nautiloid genera
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