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Clionitidae
Clionitidae is a family of generally evolute, Upper Triassic, ammonoids with a ventral furrow usually bordered by rows of tubercles and whorl sides ornamented by sigmoidal ribs which may bear spiral rows of tubercles. The suture is ceratitic. The Clionitidae belong to the Ceratitida and are included in the superfamily Clydonitaceae. Their fossils have been found in Carnian and/or Norian sediments in California, Nevada British Columbia, the Alps, Balkans, Himalaya, and on Timor. Among its genera are ''Clionites'', ''Alloclionites'', ''Californites'', and ''Traskites'' ==''References''==
*Treatise on Invertebrate Paleontology, Part L, Ammonoidea. R. C. Moore (ed). Geological Society of America and Univ of Kansas press, 1957
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