Clionites
Encyclopedia
Clionites is a genus of the clydonitacean
family Clionitidae
, and its type. The shell is evolute so as to expose all whorls which are covered with generally bifurcating signmoidal ribs. The suture is ceratitid with two lateral lobes. .
Clionites differs from Alloclionites
in having sparcer tubercles, finner ribbing, and not as high a whorl section. It has been found in Nevada, Southern Europe, and Asia.
Clydonitaceae
The Clydonitaceae is a superfamily in the ammonoid cephalopod order Ceratitida characterized by generally costate and turberculate shells with smooth, grooved, or keeled venters and sutures that are commonly ceratitic or ammonitic but goniatic in a few offshoots.-Taxonomy:The Clydonitaceae unites...
family Clionitidae
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....
, and its type. The shell is evolute so as to expose all whorls which are covered with generally bifurcating signmoidal ribs. The suture is ceratitid with two lateral lobes. .
Clionites differs from Alloclionites
Alloclionites
Alloclionites is an extinct ammonoid cephalopod genus within the family Clionitidae which is part of the ceratitid superfamily Clydonitaceae...
in having sparcer tubercles, finner ribbing, and not as high a whorl section. It has been found in Nevada, Southern Europe, and Asia.
References
- Treatise on Invertebrate Paleontology, Part L, Ammonoidea. R. C. Moore (ed). Geological Society of America and Univ of Kansas press, 1957