Eoastarte subcircularis Ciriacks 1963 (clam)

Bivalvia - Trigoniida - Schizodidae

Full reference: K.W. Ciriacks. 1963. Permian and Eotriassic bivalves of the middle Rockies. Bulletin of the American Museum of Natural History 125(1):1-100

Belongs to Eoastarte according to S. A. Quiroz-Barroso et al. 2012

See also Ciriacks 1963 and Newell and Boyd 1975

Sister taxon: Eoastarte primaeva

Type specimen: AMNH 28337, a valve (Left valve). Its type locality is Willow Creek, Lander, Fremont County, which is in a Kungurian marine limestone in the Park City Formation of Wyoming.

Ecology: facultatively mobile infaunal suspension feeder


• Leonard of United States (1: Utah collection)

• Permian of Mexico (1), United States (8: Arizona, Texas, Utah, Wyoming)

Total: 10 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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