Cephalopoda - Ammonitida - Stephanoceratidae

Full reference: J. Sandoval and G. E. G. Westermann. 1986. The Bajocian (Jurassic) ammonite fauna of Oaxaca, Mexico. Journal of Paleontology 60(6):1220-1271

Belongs to Phaulostephanus according to J. Sandoval and G. E. G. Westermann 1986

Sister taxa: Phaulostephanus apertus, Phaulostephanus diniensis, Phaulostephanus exilis, Phaulostephanus paululus

Type specimen: IGM-3932, a shell. Its type locality is Mx3: Los Rebajes (Level 1), which is in a Bajocian offshore shale in the Taberna Formation of Mexico.

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 41.8

Distribution: found only at Mx3: Los Rebajes (Level 1)

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Specimen images are retrieved through the ePANDDA API.