Cancelloceras extenuatum Ruzhentsev and Bogoslovskaya 1978 (ammonite)

Cephalopoda - Goniatitida - Gastrioceratidae

Full reference: V. E. Ruzhentsev and M. F. Bogoslovskaya. 1978. Namyurskii etap v evolyutsii ammonoidyey - Namurian stage, evolution of ammonoids. Trudyi paleontologicheskovo instituta 167:1-338

Belongs to Cancelloceras according to V. E. Ruzhentsev and M. F. Bogoslovskaya 1978

Sister taxa: Cancelloceras (Monitoceras), Cancelloceras asianum, Cancelloceras bisati, Cancelloceras contractum, Cancelloceras dilatatum, Cancelloceras elegans, Cancelloceras fragosum, Cancelloceras huntsvillense, Cancelloceras pachygyrum, Cancelloceras parasianum, Cancelloceras rurae, Cancelloceras zhoungweiense

Type specimen: PIN 2195/1300, a shell. Its type locality is Aravan River, SW of Yangi-Kurgan, NE of Koksarau Mt., Sample 2, Fergana, which is in a Yeadonian offshore shelf limestone in Uzbekistan.

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 13.6

Distribution: found only at Aravan River, SW of Yangi-Kurgan, NE of Koksarau Mt., Sample 2, Fergana

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