†Arionthia polypleura Girty 1908 (lamp shell)
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Rhynchonellata - Spiriferinida - Pennospiriferinidae
Alternative combination: Spiriferina polypleurus
Full reference: G. H. Girty. 1908. The Guadalupian fauna. United States Geological Survey Professional Paper 58:1-651
Belongs to Arionthia according to J. I. Tazawa 2016
See also Cooper and Grant 1976
Sister taxa: Arionthia alata, Arionthia blothrhachis, Arionthia germana, Arionthia lamaria
Type specimen: USNM 118606, a valve (Ventral valve)
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Permian of Japan (3 collections), United States (9: New Mexico, Texas)
Total: 12 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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