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†Tumaroceras Ruzhentzev 1961
urn:lsid:organismnames.com:name:2658246
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†Tumaroceras Ruzhentzev 1961
Ruzhentzev 1961. First ammonoids from the Permian of Verhoyansk region. Paleontologicheskii Zhurnal, 1961(2) 1961: 50-63