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†Sonninia (Alaskoceras) Westermann 1969

urn:lsid:organismnames.com:name:2312524

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103

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†Sonninia (Alaskoceras) Westermann 1969

Westermann 1969. The ammonite fauna of the Kialagvik Formation at Wide Bay, Alaska Peninsula. Part 2. Sonninia sowerbyi zone (Bajocian). Bull. Am. Paleont., 57 1969: 1-226