Pseudagathiceras spinosum Miller 1944 (ammonite)

Cephalopoda - Goniatitida - Adrianitidae

Full reference: A. K. Miller. 1944. Permian cephalopods, Part IV of Geology and paleontology of the Permian area northwest of Las Delicias, southeastern Coahulia, Mexico. Geological Society of America Special Paper 52:71-127

Belongs to Pseudagathiceras according to A. Alanis-Pavón et al. 2025

See also Leonova 2002 and Miller 1944

Sister taxa: Pseudagathiceras difuntense, Pseudagathiceras ornatum, Pseudagathiceras wichmanni

Type specimen: YPM 16310. Its type locality is King 38, Bed 5, Malascachas section, Las Delicias, which is in a Roadian marine shale/limestone in the Palo Quemado Formation of Mexico.

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 12.9

Distribution:

• Permian of Mexico (2 collections)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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