Collonia occidentalis Smith 1927 (snail)

Gastropoda - Trochoidea - Colloniidae

Full reference: J. P. Smith. 1927. Upper Triassic marine invertebrate faunas of North America. United States Geological Survey Professional Paper 141:1-262

Belongs to Collonia according to J. P. Smith 1927

Sister taxa: Collonia (Circulopsis), Collonia (Collonia), Collonia (Heniastoma), Collonia cincta, Collonia marginata, Collonia plicicostata, Collonia reflexa

Type specimen: Its type locality is Brock Mountain, 3 miles east of Madison's ranch (Trachyceras subzone), which is in a Tuvalian carbonate limestone in the Hosselkus Formation of California

Ecology: epifaunal grazer

Distribution:

• Triassic of United States (2: Alaska, California 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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